Copyright © 2018, 2020 MiTek
®
. All rights reserved.
Patented. See Legal Notice for list of patents.
Manual applies to United States equipment.
CAUTION
MiTek recommends printing this manual in high resolution using color ink. Many of the
graphics may be unclear and may create an unsafe condition if this recommendation is not
followed.
001090 rev. C
Equipment Manual
Roof Truss Tables
MiTek Machinery Division
301 Fountain Lakes Industrial Drive
St. Charles, MO 63301
Phone: 800-523-3380
Fax: 636-328-9218
www.mitek-us.com
Equipment Manual
Roof Truss Tables
Part # and Rev. 001090 rev. C
Print Date 13 July 2022
Effectivity 31580-xxx
31595-xxx
31610-xxx
Revision Date 21 May 2021
Revised By A. McIntire
Orig. Release Date 1 April 2007
Created By R. Widder
Original Instructions: 001090 rev. C ii
Legal Notice
Patents
Made and sold under one or more of the following patents:
Return Goods Policy
Return goods cannot be accepted without prior authorization and are subject to a
restocking charge. The Seller certifies the articles specified herein were produced in
compliance with all provisions of the Fair Labor Standards Act of 1938, as amended,
including Section 12.—Rev. 6/98.
Corrections and Improvements
To report errors or recommend improvements to this manual, please complete the
Document Evaluation Form in the appendices. Mail or fax the form to:
MiTek Machinery Division
301 Fountain Lakes Industrial Drive
St. Charles, MO 63301
Attn: Engineering Manager, Fax: 636-328-9218
U.S. 4,986,052 U.S. 5,837,014 U.S. 6,219,975
U.S. 5,385,339 U.S. 5,854,747 U.S. 6,260,263
U.S. 5,493,834 U.S. 5,873,567 U.S. 6,317,980
U.S. 5,568,862, U.S. 5,884,448 U.S. 6,389,762
U.S. 5,630,697 U.S. 5,885,731 U.S. 6,401,422
U.S. 5,636,494 U.S. 5,906,264 U.S. 6,412,246
U.S. 5,638,658 U.S. 5,934,866 U.S. 6,418,601
U.S. 5,640,832 U.S. 5,947,460 U.S. 6,539,615
U.S. 5,655,399 U.S. 5,987,828 U.S. 6,666,367
U.S. 5,678,395 U.S. 5,996,303 U.S. 6,702,269
U.S. 5,702,095 U.S. 6,048,165 U.S. 6,758,022
U.S. 5,707,204 U.S. 6,112,968 U.S. 6,817,392
U.S. 5,735,087 U.S. 6,134,775 U.S. 6,834,470
U.S. 5,810,341 U.S. 6,170,688 U.S. 6,907,820
U.S. 5,819,412 U.S. 6,205,637 Other patents may apply
U.S. 5,833,222 U.S. 6,212,849
Original Instructions: 001090 rev. C iii
Notice of Change
Roof Gantry Tables
Use this page to record service bulletins and notices that you receive to keep your manual
updated.
Number Date Title
Original Instructions: 001090 rev. C iv
Table of Contents
Legal Notice ii
Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Return Goods Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Corrections and Improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Notice of Change iii
Safety (English) vii
Safety Indicator Signal Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
General Equipment Safety Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Lockout/Tagout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Troubleshooting with an Energized Machine. . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Safety Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Restricted Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Safety Symbol Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Declaration of Safety Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
Seguridad (Español) xxii
Indicadores de seguridad: Palabras de aviso . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
Requerimientos de seguridad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii
Reglas general de seguridad para el equipo. . . . . . . . . . . . . . . . . . . . . . . . . . xxiii
Bloqueo/Etiquetado . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii
Solución de problemas con una máquina energizada. . . . . . . . . . . . . . . . . . . xxx
Prueba de seguridad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxi
Zona Restringida . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxii
Información adicional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxii
Introduction 1
Introduction to the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Scope of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
The Drawing Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Phone or E-mail Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Information 5
Introduction to the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Purpose of the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Description of the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Compliance of the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Components Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation 8
Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Infrastructure Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table of Contents
Original Instructions: 001090 rev. C v
Responsibilities During Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Responsibilities Before Moving or Selling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Marking Restricted Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Marking Area on Your Own . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installing MiTek Restricted Zone Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Local Codes and Regulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operation 12
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operator Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Stopping the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Understanding the Table Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Control Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operating Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating the Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating the Pneumatic Ejection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance 17
Performing Maintenance Safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Before Operating This Machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lockout/Tagout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Making Adjustments and Replacing Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Wearing Personal Protective Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Testing the Safety of the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleaning and Inspecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Inspecting the Ejectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Inspecting the Ejection System as a Whole . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Pneumatic System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Removing Pressure from the Pneumatic System . . . . . . . . . . . . . . . . . . . . . . . 22
Filter/Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Setup Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Control Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Ejector Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
High Slope Ejector Bumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting 29
Safety Notes for Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
General Troubleshooting Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Electrical Troubleshooting Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Getting Started with Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
First Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Problems and Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Parts List 34
Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Stocking Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Safety Notes for Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
List of Parts to Keep in Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Maintenance Checklist 36
Using the Maintenance Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Safety Notes for the Maintenance Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table of Contents
Original Instructions: 001090 rev. C vi
Drawing Set 38
Document Evaluation 39
Document Evaluation Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
General Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Specific Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Glossary 41
Index 45
Original Instructions: 001090 rev. C vii
Safety (English)
Safety Indicator Signal Words
The following signal words and colors are used throughout this document to indicate
safety hazards. Pay careful attention when you see them. The level of severity differs for
each signal word and color.
Signal words are accompanied by graphics showing what personnel should or should not
do. The graphics are called safety symbols and are defined on page xvii, but more specific
text is provided every time a graphic is used throughout the manual. Everyone near the
machine must be trained on how to read these safety indicators.
Failure to comply with the instructions accompanying each signal word may result in
property damage, personal injury, or even death. Personnel must follow all safety
procedures and practices to ensure the safest possible operation of this equipment.
However, at no time is this document a substitute for common sense. Personnel must
ensure that the work environment is safe and free of distractions.
Purpose
of Chapter
This chapter explains general information and specific procedures for operating
the machine safety.
danger
Indicates an imminently hazardous situation which, if not avoided, is likely to
result in death or serious injury.
warning
Indicates a potentially hazardous situation, which, if not avoided, may result in
death or serious injury.
caution
Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury.
notice
Calls attention to information that is significant to understanding the operation at
hand or the potential for property damage.
environmental
Applies to conditions that may affect the environment but do not have an
immediate, direct effect on personnel or equipment.
Refiérase a la
pagina xxii para
español.
For safety
information in
Spanish, refer to
page xxii
Safety
Original Instructions: 001090 rev. C viii
Safety Requirements
Because it is impossible to anticipate every circumstance that might involve a hazard, the
safety information provided in this equipment manual and on the machine is not all-
inclusive. If this machine is operated or serviced using a procedure not specifically
recommended by the manufacturer, the procedure shall be approved by a professional
engineer to ensure it will not render the equipment unsafe. Use extreme caution and
common sense at all times.
General Equipment Safety Rules
Know Your Equipment
• Read this manual completely before using or maintaining the equipment. Do not
operate this machine unless you have a thorough knowledge of the controls, safety
devices, emergency stops, and operating procedures outlined in this manual.
• Read and follow all safety notes. Failure to comply with these instructions may
result in economic loss, property damage, and/or personal injury including death.
• Refer to the lockout/tagout guidelines on the following pages to safely perform
maintenance and troubleshooting of this equipment.
• Observe and obey all safety labels. Replace worn labels immediately.
• Use this equipment solely for the purpose described in this manual.
• MiTek equipment is designed to work with optional accessories and other MiTek
machines. When applicable, refer to the appropriate equipment manual for
specific safety information.
• Only qualified personnel should attempt to operate or perform maintenance on
this equipment. “Qualified personnel” is defined as:
...a person or persons who, by possession of a recognized degree or certificate of
professional training, or who, by extensive knowledge, training, or experience,
has successfully demonstrated the ability to solve problems relating to the subject
matter and work—ANSI B30.2-1983
...one who has skills and knowledge related to the construction and operation of
the electrical equipment and installations and has received safety training on the
hazards involved—NEC 2002 Handbook
Personal Safety
• Always wear safety glasses and hearing protection in an industrial environment.
• Utilize a filtering face piece (dust mask) when working near sawdust.
• Wear proper clothing and appropriate personal protective equipment (e.g., safety
glasses and hearing protection.) Do not wear loose clothing or jewelry. Confine
long hair by tying it back.
• Use caution when lifting heavy parts or material.
• Pay attention to your surroundings.
Safety
Original Instructions: 001090 rev. C ix
Installing the Equipment
• Follow installation instructions completely.
• This equipment is not for use in a residential area.
Lockout/Tagout
• Before performing maintenance on the pneumatic or hydraulic systems, bleed the
lines to eliminate pressure. Refer to Removing Pressure from the Pneumatic
System.
• Lockout/tagout all energized systems before performing maintenance on them.
Refer to lockout/tagout guidelines in on page xi.
Keeping a Safe Environment
• Keep children away. All visitors should be kept a safe distance from the work
area. Hazards may not be apparent to individuals unfamiliar with the machine.
• Keep work areas well lit.
• Keep the work area clean and free of any trip or slip hazards.
• Do not use the equipment in damp or wet locations, or expose it to rain or snow.
• Minimize dust clouds and protect your equipment by cleaning dust in this manner:
a) Vacuum dust prior to blowing with air
b) Shut down electrical power and sources of ignition
c) If using compressed air, it should be a low compression (no more than 15 psi)
d) Powered cleaning equipment such as vacuums must be consistent with local
governmental codes for use in dusty conditions.
Operating and Maintaining the Equipment
• Ensure that all people, tools, and foreign objects are clear of the restricted zones
before operating this equipment. The restricted zones are shown on page xvi.
• Perform safety tests to ensure all E-stops are working properly before operating
the equipment at the initial startup, after performing any maintenance, and in
accordance with the maintenance schedule.
• In case of machine malfunction, stop the machine immediately using an E-stop
and report the malfunction to a supervisor.
• Never leave the machine running unattended. Turn the power off! Do not leave
the machine until all parts have come to a complete stop and all electrical power
has been shut off.
• Check for worn or damaged parts regularly. Repair or replace them immediately.
• Keep the hydraulic, pneumatic, and electrical systems in good working order at all
times. Repair leaks and loose connections immediately. Never exceed the
recommended pressure or electrical power.
Safety
Original Instructions: 001090 rev. C x
• Check that all safety devices are in working order before each shift starts. All
protective guards and safety devices must be in place before and during use of the
machine. Never disconnect or bypass any safety device or electrical interlock.
• Only qualified maintenance personnel shall remove or install safety devices.
• Periodically inspect the quality of the finished product.
Electrical Safety
• Do not use any liquids in the interior of electrical cabinets.
• When using solvents on and around the machine, remove power to the machine to
eliminate the chance of sparking, resulting in explosion or fire. Wear a respirator
approved for use with solvents. Wear protective clothing, gloves, and safety
glasses.
Safety
Original Instructions: 001090 rev. C xi
Lockout/Tagout
Lockout/Tagout Guidelines
All lockout/tagout guidelines must be met according
to OSHA 29 CFR 1910.147. A specific procedure
should be included in your company’s energy control
program. This manual is not intended to replace your
company’s de-energizing or lockout/tagout procedure
required by OSHA, but merely to provide general
guidance.
The term “lockout,” as used in this manual, means
placing a lockout device on any and all energy sources to
ensure that the energy isolating device and the equipment
being controlled cannot be re-energized or operated until
the lockout device is removed. Figure 1-2shows where
the electrical disconnects are located for this machine.
• Energy sources include electrical, mechanical,
hydraulic, pneumatic, chemical, thermal, or
other energy.
• In the case of electrical energy sources, the main
power and control power to the machinery must
be turned off and physically locked in the Off position.
• A lockout device is usually a keyed padlock.
If more than one person is working in a restricted zone, use a group lockout device that
will allow each person to use a lock that can be removed only by the person performing
the maintenance.
“Tagout” means that a prominent warning is securely fastened to an energy-isolating
device to indicate that the equipment shall not be operated.
Whenever you see this symbol, lockout/tagout!
Figure 1-1: An Example of a
Lockout/Tagout Device
Safety
Original Instructions: 001090 rev. C xii
Electrical Lockout/Tagout Procedures:
Outside Machine’s Enclosure
Before performing maintenance on any machine with electrical power, lockout/tagout the
machine properly. When working on a machine outside of the machine’s main electrical
enclosure, not including work on the electrical transmission line to the machine, follow
your company’s approved lockout/tagout procedures which should include, but are not
limited to the steps here.
1. Engage an E-stop on the machine.
2. Turn the disconnect switch handle to the Off position. See Figure 1-2.
3. Attach a lock and tag that meet OSHA requirements for lockout/tagout.
4. Restrain or de-energize all pneumatic components, hydraulic components, and
other parts that could have live or stored power.
Figure 1-2: Disconnect Switches to Lockout /Tagout for Various Maintenance
If you are working inside the machine’s enclosure, follow the
procedure on page xiii.
!
WARNING
ELECTROCUTION HAZARD.
When the disconnect switch is off, there is still live power within
the disconnect switch’s enclosure. Always turn off the power at
the building’s power source to the equipment before opening this
electrical enclosure.
Safety
Original Instructions: 001090 rev. C xiii
Electrical Lockout/Tagout Procedures:
Inside Machine’s Enclosure
Before opening the main electrical enclosure, or attempting to repair or replace an
electrical transmission line to the machine, lockout/tagout the machine properly. Follow
your company’s approved lockout/tagout procedures which should include, but are not
limited to the steps here.
1. Engage an E-stop on the
machine.
2. Shut the power to the machine
off at the machine’s power
source which is usually an
electrical service entry panel
on the facility wall. One
example of a locked-out power
source panel is shown in
Figure 1-3.
3. Attach a lock and tag that
meets OSHA requirements for
lockout/tagout.
4. Open the door to the enclosure
in which you need access, and
using a multimeter, verify that
the power is off.
If you are working on the electrical transmission line to the
machine, follow the procedure on page xii.
Figure 1-3: Sample of a Lockout/
Tagout Mechanism on a Power
Source Panel
Safety
Original Instructions: 001090 rev. C xiv
Pneumatic System Lockout/Tagout Procedure: WITH Lockout/Tagout
If working on components other than the pneumatic system, but that requires you to be
near the vicinity of movable pneumatic components, you must, at a minimum, physically
restrain the pneumatic components from moving. If this is not possible, lockout/tagout the
entire pneumatic system.
Pneumatic System Lockout/Tagout Procedure: WITHOUT Lockout/Tagout
Before attempting repair or maintenance on a pneumatic line or component, lockout/
tagout the machine properly. Follow your company’s approved lockout/tagout procedures.
Troubleshooting with an Energized Machine
Only a qualified electrician, using the personal protective equipment and following the
procedures recommended in NFPA 70E should ever attempt service or repair of or near an
energized area or component of the machine.
Whenever maintenance is performed while the equipment is electrically energized, there is
a potential electric arc flash hazard. Refer to NFPA 70E for the personal protective
equipment required when working with electrically energized components. Pneumatic and
hydraulic components may move unexpectedly if not de-energized. Physically restrain any
components capable of movement when working on or near those components.
Safety
Original Instructions: 001090 rev. C xv
Safety Tests
This test procedure MUST be performed by qualified personnel at startup and after ANY
maintenance, adjustment, or modification.
1. Ensure air pressure is set to 100 PSI. See Adjusting the Pressure.
2. Actuate each setup to test that the ejectors raise when expected and lower when
expected at a reasonable speed.
Safety
Original Instructions: 001090 rev. C xvi
Restricted Zone
Figure 1-4: Know the Restricted Zone
Marking the Restricted Zone
The restricted zone must be marked so everyone near the equipment can clearly see the
area where danger may exist. See page 10 for more details.
!
DANGER
Stay out of the restricted zone when equipment is in use. Serious
injury or death may result if personnel are in the restricted zone.
Always look for personnel in the restricted zone before operating
equipment.
Gantry Head
Tables
Parking Stand
Conveyors
Finish Roller
Conveyors
Stackers
(Not Shown)
Safety
Original Instructions: 001090 rev. C xvii
Safety Symbol Definitions
The safety symbols shown in this section are found throughout the manual to indicate
hazards related to this machine. All personnel expected to operate or maintain this
machine should be familiar with these safety symbols and their meanings.
User caution. It indicates a condition where equipment damage
resulting in injury could occur if operational procedures are not
followed. To reduce risk of damage or injury, refer to accompanying
documents, and follow all steps or procedures as instructed.
Electrical hazard. It indicates dangerous high voltages inside of an
enclosure and/or the presence of a power source. To reduce the risk
of fire or electric shock, do not attempt to open the enclosure or gain
access to areas where you are not instructed to do so. Refer
servicing to qualified service personnel only.
This equipment should be operated only from the type of source
indicated on the manufacturer’s identification label. Installation
should be in compliance with applicable sections of the national
electric code. Consult your local building code before installing.
Crush hazard. Keep hands clear.
Trip hazard. Pay attention when walking in this area.
Keep hands and body clear.
Safety
Original Instructions: 001090 rev. C xviii
Keep hands away from moving parts.
High pressure hose. Use appropriate PPE when working on
equipment. Maintain safe pressure level at all times.
Use sling equipment rated for at least ___ lbs / ___ kgs when lifting
this equipment.
Do not use unapproved lubricants in this equipment.
Do not operate without guards in place.
Indicates notes regarding lubrication.
Safety
Original Instructions: 001090 rev. C xix
The operation of this equipment requires the use of PPE.
Do not operate without wearing the required protective clothing.
Refer to manual. After installation, read the user’s guide carefully
before operating. Follow all operating and other instructions
carefully.
Safety
Original Instructions: 001090 rev. C xx
Circuits are live. Lockout/tagout on the upstream disconnect prior to
servicing.
Lockout in a de-energized state.
Lift point. In order to decrease the likelihood of damage to the
equipment, use only the lift points indicated in the manual.
To reduce the risk of equipment damage or injury to personnel,
maintain pressure at safe levels.
Read all safety warnings and instructions before proceeding.
No lift point. Do not lift this device with a hook/crane assembly.
Equipment damage occurs. Refer to the installation instructions.
Safety
Original Instructions: 001090 rev. C xxi
Declaration of Safety Conformity
Conforms electrically to the following:
• NFPA 79
• NEC Electrical Code
• Electrical enclosures carry UL 508A and the CUL for Canada
• Safety circuit conforms to Category 4 redundant monitoring
Conforms mechanically to the following:
• 10CFR 1910
• ANSI B 11.19
Original Instructions: 001090 rev. C xxii
Seguridad (Español)
Indicadores de seguridad: Palabras de aviso
Las siguientes palabras y colores de aviso se utilizan a lo largo de este documento para
indicar riesgos de seguridad. Preste suma atención cuando los vea. El nivel de gravedad es
diferente por cada palabra o color de aviso.
Las palabras de aviso van acompañadas por gráficos que muestran al personal lo que
deben y no deben hacer. Los gráficos se llaman símbolos de seguridad y se definen en la
página xvii pero se proporciona un texto más específico cada vez que se utiliza un gráfico
por todo el manual. Todas las personas que estén cerca de una máquina tienen que ser
capacitadas en cómo leer estos indicadores de seguridad.
No cumplir las instrucciones que acompañan cada palabra de aviso puede producir daños a
la propiedad, lesiones personales e incluso la muerte. El personal debe seguir todos los
procedimientos y prácticas de seguridad establecidos para asegurar el uso más seguro
posible de este equipo. No obstante, en ningún caso este documento reemplaza el sentido
común. El personal debe asegurarse de que el entorno de trabajo sea seguro y esté libre de
distracciones.
Objetivo
del Capítulo
Este capítulo explica la información general y los procedimientos específicos
para operar la máquina de manera segura.
Peligro
Indica una situación de peligro inminente que, si no se evita, ocasionará la
muerte o graves lesiones.
Advertencia
Indica una situación potencialmente peligrosa que, si no se evita, podría
producir la muerte o lesiones graves.
Precaución
Indica una situación potencialmente peligrosa que, si no se evita, puede
producir lesiones menores o moderadas.
Aviso
Llama la atención a información importante para entender la operación que se
desea realizar o daños a la propiedad probables.
Ambiental
Se aplica a condiciones que pueden afectar el entorno pero que no tienen un
efecto inmediato o directo sobre el personal o el equipo.
Seguridad
Original Instructions: 001090 rev. C xxiii
Requerimientos de seguridad
Debido a la imposibilidad de anticipar todas las circunstancias que podrían constituir un
riesgo, la información de seguridad suministrada en este manual del equipo y sobre la
máquina no es exhaustiva. Si se utiliza o realiza el mantenimiento de esta máquina
utilizando un procedimiento no recomendado específicamente por el fabricante, el
procedimiento deberá ser aprobado por un ingeniero profesional para asegurarse de que no
afecte la seguridad del equipo. ¡Manéjese siempre con suma precaución y sentido común!
Reglas general de seguridad para el equipo
Conozca su equipo
• Lea este manual en su totalidad antes de utilizar o mantener el equipo. No utilice
esta máquina a menos que esté perfectamente familiarizado con los controles, los
dispositivos de seguridad, los frenos de emergencia y los procedimientos
operativos que se describen en este manual.
• Lea y siga todas las notas de seguridad. El no cumplimiento de estas instrucciones
podría producir pérdidas económicas, daños a la propiedad y/o lesiones
personales, incluida la muerte.
• Refiérase a las pautas de bloqueo/etiquetado proporcionadas en las siguientes
páginas para realizar el mantenimiento y solucionar problemas de este equipo en
forma segura.
• Observe y cumpla con todas las etiquetas de seguridad. Cambie las etiquetas
gastadas inmediatamente.
• Utilice este equipo únicamente para el propósito que se describe en este manual.
• El equipo MiTek está diseñado para funcionar con accesorios opcionales y otras
máquinas MiTek. Cuando sea necesario, consulte el manual del equipo
correspondiente para obtener información de seguridad específica.
• Sólo personal calificado debe intentar utilizar o realizar el mantenimiento de este
equipo. Por "personal calificado" se entiende:
...una persona o personas que, por el hecho de poseer un título o certificado de
capacitación profesional reconocido o que, por sus amplios conocimientos o
experiencia, han demostrado con éxito estar capacitados para resolver problemas
relacionados con el tema y el trabajo en cuestión—ANSI B30.2-1983
...una persona que posee habilidades y conocimientos relacionados con la
construcción y uso de equipos e instalaciones eléctricas y que ha recibido
capacitación en seguridad sobre los riesgos posibles—NEC 2002 Handbook
Seguridad personal
• Use siempre lentes de seguridad y protección auditiva en un entorno industrial.
• Utilice una máscara protectora cuando trabaje cerca de aserrín.
Seguridad
Original Instructions: 001090 rev. C xxiv
• Utilice ropa adecuada y equipo de protección personal apropiado (por ejemplo,
lentes de seguridad y protección auditiva.) No use ropa suelta ni joyas. Si tiene el
cabello largo, áteselo para atrás.
• Proceda con precaución cuando levante piezas o materiales pesados.
Seguridad
Original Instructions: 001090 rev. C xxv
Instalació del equipo
• Siga las instrucciones de instalación al pie de la letra.
• No utilizar este equipo en zonas residenciales.
Bloqueo/Etiquetado
• Antes de realizar el mantenimiento de los sistemas neumáticos, purgue las líneas
para eliminar la presión.
• Bloquee y etiquete todos los sistemas energizados antes de realizar tareas de
mantenimiento en ellos. Refiérase a la sección Pautas de bloqueo/etiquetado en la
página xxvii.
Cómo manterner un entorno seguro
• Mantenga alejados a los niños. Todos los visitantes deben mantenerse a una
distancia segura del área de trabajo. Los riesgos pueden no ser evidentes a las
personas no familiarizadas con la máquina.
• Mantenga las áreas de trabajo bien iluminadas.
• Mantenga el área de trabajo limpia y libre de cualquier riesgo de tropiezo o
resbalamiento.
• No utilice el equipo en lugares húmedos o mojados y no lo exponga a la lluvia o a
la nieve.
• Minimice las nubes de polvo y proteja su equipo quitando el polvo de la siguiente
manera:
• Aspire el polvo antes de soplarlo con aire
• Apague la alimentación eléctrica y todas las fuentes de ignición
• Si usa aire comprimido, debe ser a compresión baja (no más de 15 psi)
• El equipo eléctrico de limpieza como las aspiradoras debe cumplir con los
códigos del gobierno local para uso en condiciones polvorientas.
AVISO
¡No utilice nunca aire comprimido dentro de una caja eléctrica!
Puede forzar sustancias contaminantes hacia el interior de las
conexiones eléctricas.
Utilice un aspirador para eliminar polvo de las cajas eléctricas.
Es aceptable utilizar aire comprimido después de aspirar.
Seguridad
Original Instructions: 001090 rev. C xxvi
Uso y mantenimiento del equipo
• Asegúrese de que no haya personas, herramientas y objetos extraños en las zonas
restringidas antes de utilizar este equipo. Las zonas restringidas se indican en la
página xxxii.
• Realice pruebas de seguridad para verificar que todos los frenos de emergencia
funcionen adecuadamente antes de utilizar el equipo al principio de la puesta en
marcha y después de realizar cualquier tarea de mantenimiento.
• En caso de que la máquina no funcione correctamente, deténgala inmediatamente
utilizando un freno de emergencia e informe el problema a un supervisor.
• No deje nunca la máquina encendida si no está junto a ella. ¡Apáguela! No la
abandone hasta que todas las piezas se detengan completamente y hasta que se
haya apagado la alimentación eléctrica.
• Verifique periódicamente que no haya piezas gastadas o dañadas. Repárelas o
cámbielas inmediatamente.
• Mantenga los sistemas neumáticos y eléctricos en buen funcionamiento en todo
momento. Repare las fugas y las conexiones sueltas inmediatamente. No exceda
nunca la presión ni potencia eléctrica recomendadas.
• Verifique que todos los dispositivos de seguridad estén en buen funcionamiento
antes de comenzar cada turno. Todos los dispositivos protectores y de seguridad
deben estar en su lugar antes y durante el uso de la máquina. No desconecte ni
evite nunca ningún dispositivo de seguridad ni interbloqueo eléctrico.
• Solo el personal de mantenimiento calificado puede quitar o instalar los
dispositivos de seguridad.
• Inspeccione periódicamente la calidad del producto terminado.
Seguridad eléctrica
• No utilice líquidos en el interior de los gabinetes eléctricos.
• Cuando utilice disolventes sobre o alrededor de la máquina, desconecte la
alimentación para eliminar las probabilidades de chispas, que pueden producir
una explosión o incendio. Use un respirador aprobado para el uso con disolventes.
Use ropa protectora, guantes y lentes de seguridad.
Seguridad
Original Instructions: 001090 rev. C xxvii
Bloqueo/Etiquetado
Pautas de bloqueo/etiquetado
Deben cumplir con todas las pautas de bloqueo/
etiquetado conforme a la norma OSHA 29 CFR
1910.147. El programa de control de energía de la
compañía debe incluir un procedimiento específico. El
objetivo de este manual no es reemplazar el
procedimiento de desenergización o bloqueo/etiquetado
requerido por la OSHA, sino proporcionar pautas
orientativas generales.
El término "bloqueo", según se utiliza en este manual, se
refiere a la colocación de un dispositivo de bloqueo en las
fuentes de energía para asegurar que el dispositivo
aislador de energía y el equipo controlado por éste no
puedan reenergizarse o utilizarse hasta que se retire dicho
dispositivo. Las fotos en la página xxviii siguiente
muestran los lugares en los que se encuentran los
interruptores de desconexión eléctrica de esta máquina.
• Las fuentes de energía incluyen energía eléctrica,
mecánica, hidráulica, neumática, química,
térmica y otras.
• En el caso de fuentes de energía eléctrica, la alimentación principal y la
alimentación de control a la maquinaria deben apagarse y bloquearse físicamente
en la posición "off" (apagado).
• Por lo general, como dispositivo de bloqueo se utiliza un candado con llave.
Si hay más de una persona trabajando en una zona restringida, utilice un dispositivo de
bloqueo grupal que permita a cada persona utilizar un candado que sólo pueda ser retirado
por la persona que realiza el mantenimiento.
Siempre que vea este símbolo, ¡Bloquee/Etiquete!
Figura 1-1: Ejemplo de un
dispositivo de bloqueo/
etiquetado
Seguridad
Original Instructions: 001090 rev. C xxviii
Procedimientos de bloqueo/etiquetado eléctricos: fuera del gabinete
Antes de realizar el mantenimiento de cualquier máquina con alimentación eléctrica,
bloquee y etiquete la máquina de forma adecuada. Cuando trabaje en una máquina fuera
del gabinete eléctrico principal de la máquina, salvo en el caso de trabajos en la línea de
transmisión eléctrica a la máquina, siga los procedimientos de bloqueo/etiquetado
aprobados por la compañía, los cuales deberían incluir, entre otros, los pasos aquí
indicados.
1. Coloque un freno de emergencia sobre la máquina.
2. Coloque el mango del interruptor con fusibles en la posición "apagado". Vea
página xxviii.
3. Coloque un candado y una etiqueta que cumplan con los requisitos de bloqueo/
etiquetado de la OSHA.
4. Trabe o desenergice todos los componentes neumáticos y otras piezas que tengan
alimentación directa o almacenada.
Figura 1-2: Mecanismo de bloqueo/etiquetado en un gabinete eléctrico principal
Si trabaja en la línea de transmisión eléctrica a la máquina, siga
el procedimiento de la página xxix.
!
ADVERTENCIA
RIESGO DE ELECTROCUCIÓN.
Cuando el interruptor con fusibles está apagado, sigue habiendo
energía dentro del gabinete del interruptor. ¡Apague siempre la
alimentación en la fuente de alimentación del edificio antes de
abrir este gabinete eléctrico!
Seguridad
Original Instructions: 001090 rev. C xxix
Procedimientos de bloqueo/etiquetado eléctricos: dentro del gabinete
Antes de abrir el gabinete eléctrico principal o intentar reparar o reemplazar una línea de
transmisión eléctrica a la máquina, bloquee y etiquete la máquina en forma adecuada. Siga
los procedimientos de bloqueo/etiquetado aprobados por la compañía, los cuales deberían
incluir, entre otros, los pasos aquí indicados.
1. Coloque un freno de
emergencia sobre la máquina.
2. Apague la alimentación a la
máquina en la fuente de
alimentación, que, por lo
general, es un panel de entrada
de suministro eléctrico que se
encuentra en una pared de las
instalaciones. En la Figure 1-3
se muestra un ejemplo de panel
de fuente de alimentación
bloqueado.
3. Coloque un candado y una
etiqueta que cumplan con los
requisitos de bloqueo/
etiquetado de la OSHA.
4. Abra la puerta del gabinete al
que necesita acceder y usando
un multímetro verifique que la
alimentación esté apagada.
Figura 1-3: Ejemplo de un
mecanismo de Bloqueo/Etiquetado
en un panel de entrada de
suministro eléctrico
Seguridad
Original Instructions: 001090 rev. C xxx
Procedimiento de bloqueo/etiquetado del sistema neumático: cuando no se
requiere bloqueo/etiquetado
Si trabaja con componentes que no son del sistema neumático pero que requieren su
presencia en la proximidad de componentes neumáticos móviles, debe, como mínimo,
trabar físicamente estos componentes para que no se muevan. Si no es posible, bloquee/
etiquete todo el sistema neumático.
Procedimiento de bloqueo/etiquetado del sistema neumático: cuando se
requiere bloqueo/etiquetado
Antes de intentar reparar o realizar el mantenimiento de una línea o componente
neumático, bloquee/etiquete la máquina en forma apropiada. Vea la página xxviii para más
detalles sobre procedimientos de bloqueo/etiquetado neumático. Siga los procedimientos
de bloqueo/etiquetado aprobados por la compañía.
Solución de problemas con una máquina energizada
Sólo un electricista calificado que utilice el equipo de protección personal y siga los
procedimientos recomendados en la norma NFPA 70E debe intentar realizar tareas de
reparación o mantenimiento en un área o componente energizados de la máquina o en su
proximidad.
Cada vez que se realizan tareas de mantenimiento mientras el equipo está eléctricamente
energizado, existe un riesgo potencial de formación de un arco eléctrico. Consulte en la
norma NFPA 70E el equipo de protección personal requerido para trabajar con
componentes eléctricamente energizados. Los componentes neumáticos e hidráulicos
pueden moverse de manera imprevista si no se desenergizan. Trabe físicamente cualquier
componente que pueda moverse cuando deba trabajar en ellos o en su proximidad.
Seguridad
Original Instructions: 001090 rev. C xxxi
Prueba de seguridad
Este procedimiento de prueba DEBE ser realizado por personal calificado al momento de
la puesta en marcha y después de CUALQUIER tarea de mantenimiento, ajuste o
modificación.
1. Asegúrese de que la presión del aire esté ajustada en 100 psi. Vea Ajuste de la
presión.
2. Accione todos los conjuntos neumáticos para comprobar que suban y bajen según
lo previsto a una velocidad razonable.
Seguridad
Original Instructions: 001090 rev. C xxxii
Zona Restringida
Figura 1-4: Conocer la zona restringida
Marcar la zona restringida
La zona restringida deberá marcarse de tal manera que todas las personas que se
encuentren cerca del equipo puedan ver claramente el área donde pueda haber peligro. Vea
!
PELIGRO
Manténgase afuera de la zona restringida cuando el equipo esté
en uso. Pueden producirse lesiones graves o incluso la muerte si
el personal está en la zona restringida.
Asegúrese que no haya personal en la zona restringida antes de
operar el equipo.
Gantry Head
Tables
Parking Stand
Conveyors
Finish Roller
Conveyors
Stackers
(Not Shown)
Chapter 1
Original Instructions: 001090 rev. C 1
Introduction
Introduction to the Manual
Purpose of This Manual
In order for this manual to be useful, it must be accessible.
This manual addresses the most recent version of the equipment as of the date listed on the
title page. For earlier revisions, contact MiTek Machinery Division Customer Service.
This manual is a valuable training tool.
• The Introduction and General Information chapters discuss contact information for
MiTek and provide basic information about the equipment.
• The Operation chapter teaches operators how to efficiently operate the machine.
• The Maintenance chapter details procedures specifically for maintenance
personnel.
• The appendices provide valuable training materials and technical information to
keep your equipment running.
Purpose
of Chapter
This chapter explains how to navigate through the manual and how to contact
MiTek Machinery Division Customer Service.
!
WARNING
Read this manual completely before using this equipment.
Do not operate this equipment until you have a thorough
understanding of all controls, safety devices, emergency stops,
and operating procedures outlined in this manual.
All hazard instructions must be read and observed. Failure to do
so may result in economic loss, property damage, and/or
personal injury.
This manual must always be available to personnel.
Introduction
Original Instructions: 001090 rev. C 2
Scope of This Manual
The Roof Truss Table is designed to work with optional accessories and other MiTek
machines, but the scope of this manual is limited to the following equipment:
Equipment covered in this manual:
• Roof Truss Table
• Ejection Systems (High-Slope Auto-Eject and End-Eject)
Equipment not covered in this manual:
• Roof Press
• Automated or Manual Jigging
• Other peripheral equipment
The Drawing Set
A list of drawings can be found in the back of this equipment manual or in a separate
11x17 binder. The drawings list can be found in the Drawing Set chapter.
Introduction
Original Instructions: 001090 rev. C 3
Navigational Aids
The graphics used in Table 1-1 are used throughout the manual to communicate a specific
type of information quickly.
Table 1-1: Navigational Aids
Graphic Explanation
This icon is an important safety note.
It indicates that you must lockout/tagout at the disconnect switch located
on the equipment using approved methods described in OSHA CFR
1910.147 before continuing with the procedure.
This icon specifies that certain tools are needed before a procedure
begins.
This icon provides additional information to supplement the main text.
This icon indicates how to locate additional relevant information or
resources.
This icon indicates that a part number for the item being discussed is
located in the Parts List appendix.
Introduction
Original Instructions: 001090 rev. C 4
Additional Resources
Website
Visit the MiTek website at mitek-us.com for up-to-date information on all MiTek
equipment. You may also find the following information there:
• The latest revisions of this manual
• Service bulletins pertaining to your equipment
• Support, safety, and training information
• Part numbers for ordering parts
Phone or E-mail Support
To obtain expert technical assistance or to order parts, contact MiTek Machinery Division
Customer Service using one of the following methods.
Contact Information
MiTek Component Automation
Customer Service Department
301 Fountain Lakes Industrial Drive
St. Charles, MO 63301
Parts Orders (with part number)
Email: [email protected]
Technical Assistance
Phone: 800-523-3380
Fax: 636-328-9218
Website
mitek-us.com
Videos
Search for “MiTek Inc” to find us on YouTube
.
Chapter 2
Original Instructions: 001090 rev. C 5
General Information
Introduction to the Equipment
Purpose of the Equipment
The Roof Truss Tables are used with MiTek roof truss presses. All accessories and options
discussed in this manual are designed to work specifically with MiTek Roof Truss Tables
to make setup and material handling tasks more efficient.
Description of the Equipment
The Roof Truss Tables provide a stable, durable jigging surface for the assembly and
pressing of trusses. Trusses are assembled on the table surface and the press passes above
the tables, embedding the plates.
Optional ejection systems can be installed in the tables to lift the trusses off the table for
easy removal. Optional automated and manual jigging can also be installed to drastically
reduce setup time.
Safety Compliance of the Equipment
Equipment shipped to a U.S. destination is compliant NFPA 79, NEC 2009, and applicable
OSHA regulations.
Equipment shipped to an international destination is compliant with CSA regulations.
Purpose
of Chapter
This chapter provides an overview of the equipment and the means to identify it.
General Information
Original Instructions: 001090 rev. C 6
Figure 2-1: Major Components of the Roof Truss Tables (Options Included)
General Information
Original Instructions: 001090 rev. C 7
Components Overview
The main and some of the optional components of the table system are shown on page 6.
All optional components are listed in Table 2-1.
Table 2-1: Optional Features
Technical Specifications
Table 2-2: Dimensions and Weight
Table 2-3: General Specifications
Component Description
Automated Jigging See automated jigging equipment manual.
Ejection Systems High-Slope Auto-Eject (with auto-eject roller)
End-Eject (with gantry lifter)
Table Top Surfaces Walk-through aisles or continuous-top
Table Type Dimensions Approx. Weight
12’-6” Table 13’ 4-3/4” L, x 7’ 6” W, x 30-3/4” adjustable to 34” H 4,800 lbs
14’ Table 14’ 10-3/4” L, x 7’ 6” W, x 30-3/4” adjustable to 34” H 5,600 lbs
16’ Table 16’ 10-3/4” L, x 7’ 6” W, x 30-3/4” adjustable to 34” H 6,000 lbs
Table-top material 3/4” steel
Manual jigging slots 6 slots for jigging
Jigging MiTek-supplied manual jigging is used in manual
jigging slots. Automated jigging is optional and can
replace manual jigging slots.
Chapter 3
Original Instructions: 001090 rev. C 8
Installation
Installation Requirements
Environmental Requirements
Operating Temperature
The Roof Gantry Tables operate properly in its intended ambient temperature, from 40 to
122 degrees Fahrenheit (0 to 50 degrees Celsius).
Relative Humidity
The Roof Gantry Tables operate properly in an atmosphere with 45 to 85 percent relative
humidity.
Transportation and Storage
The Roof Gantry Tables withstand or has been protected against transportation and storage
temperatures from -13 to 158 degrees Fahrenheit (-25 to 70 degrees Celsius). It has been
packaged to prevent damage from the effects of normal humidity, vibration, and shock.
Infrastructure Requirements
Flooring Requirements
The Roof Gantry Tables need to be installed on a floor that meets the minimum
requirements for the press that will be pressing on the tables. Refer to the press manual.
Purpose
of Chapter
This chapter provides a brief overview of the responsibilities in the installation
process.
ENVIRONMENTAL
Do not discard machinery into the municipal waste stream.
Installation
Original Instructions: 001090 rev. C 9
Pneumatic Requirements
The Roof Gantry Tables use a pneumatic system to operate optional jigging components.
To reduce condensation in the pneumatic system, MiTek recommends using a refrigerated
air dryer. Requirements for the pneumatic system are detailed in Table 3-1.
Table 3-1: Pneumatic System Requirements
Specification Technical Data
Volume:
Auto-Eject
End-Eject
.42 scfm per table
.39 scfm per table
Pressure 100 psi
Minimum line from air source 1'' diameter
Recommended line from air source 1'' diameter
Recommended air source tank min. of 60 gallons
Installation
Original Instructions: 001090 rev. C 10
Responsibilities During Installation
MiTek supervises the installation to ensure that the Roof Gantry Tables are installed
properly and operate correctly. MiTek will also provide operating and maintenance
training at the time the equipment is installed. The customer is responsible for providing
all labor and equipment needed to complete the installation.
Responsibilities Before Moving or Selling
If you determine that you want to move your Roof Gantry Tables to another location or
you want to sell your system to another company, please call MiTek Machinery Division
Customer Service. Customer Service provides detailed information that is needed before
installing the system elsewhere.
Marking Restricted Zone
Marking Area on Your Own
The restricted zone must be marked and maintained so everyone near the equipment can
clearly see the area where danger may exist. The customer is responsible for marking and
maintaining the restricted zone.
Installing MiTek Restricted Zone Tape
Your equipment arrived with Service Bulletin SB181, which includes restricted zone tape
and instructions for installing it.
The service bulletin is available online (www.mitek-us.com) as well as through the MiTek
Machinery Division Customer Service Department. Follow the instructions contained in
SB181 to install the restricted zone tape.
!
WARNING
Call MiTek Machinery Division Customer Service before moving
the system.
Moving the system without proper planning may result in
equipment damage or serious injury.
Customer Service
is available at
800-523-3380.
Installation
Original Instructions: 001090 rev. C 11
Local Codes and Regulations
The customer must be familiar with all local codes that apply and ensure the equipment in
installed in a way that meets these codes. The following list identifies some, but not all, of
the items that should be discussed with local authorities.
• Equipment should be stable under all conditions of use, including seismic events
• Fuse and disconnect regulations
• Grounding regulations
• Emissions regulations
• Space required
• Personal protective equipment required
• Inspections required
Chapter 4
Original Instructions: 001090 rev. C 12
Operation
Before You Begin
Purpose
of Chapter
This chapter describes operating mechanisms on this machine and the
procedure to operate it in most circumstances.
!
WARNING
ELECTROCUTION, HIGH PRESSURE, CRUSH, AND CUT
HAZARDS.
Read this section AND the safety section in the preliminary pages
before operating or maintaining this machine.
Do not operate this machine until you have a thorough
understanding of all controls, safety devices, E-stops, and
operating procedures outlined in this manual.
Read and observe all warnings. Failure to do so may result in
economic loss, property damage, and/or personal injury.
This manual must always be available to personnel operating and
maintaining this machine.
!
WARNING
CRUSH AND CUT HAZARD.
Before turning on the machine, make sure that all personnel and
other machines are out of the restricted zone (see page xvi).
!
WARNING
Do not operate this machine unless all guards and safety devices
are in place.
Only qualified maintenance personnel shall repair, remove, or
replace guards and safety devices.
Operation
Original Instructions: 001090 rev. C 13
Operator Controls
Refer to your press or automated jigging manual for additional operating information.
Stopping the Machine
Refer to the press manual for instructions on stopping the press and other safety
information.
Understanding the Table Components
The pneumatic system controls the optional ejectors on the tables.
Control Valves
This section describes how valves control individual tables or setups. A table line may
have multiple setups depending on installation requirements.
1. A foot valve (new models) or hand valve (also referred to as a pilot valve)
is used
to control a setup. See Figure 4-1.
Figure 4-1: Ejector Control Valves
!
WARNING
The operation of this machine requires the use of PPE. Do not
operate without wearing required protective clothing.
Operating this machine without proper PPE may result in injury.
Setup (noun):
A section of the pneumatic system configured to
act as one unit; it controls the air flow for multiple
table ejectors.
Operation
Original Instructions: 001090 rev. C 14
2. The table valves determine whether the ejectors for an individual table functions
within a setup
(Figure 4-2).
Figure 4-2: Table Valve
3. Ball valves installed in the 22-mm tubing are used to designate where a setup
(composed of multiple tables) starts and stops (Figure 4-3).
4. The shut-off valve controls air flow to all tables in a setup (Figure 4-3).
Figure 4-3: Setup Ball Valves and Shut-Off Valve
Operation
Original Instructions: 001090 rev. C 15
Operating Procedure
This manual only addresses the use of the Roof Truss Tables. It does not address methods
of designing or building a truss or operating the jigging.
Operating the Tables
1. Set up the truss configuration and jigging.
Refer to your press manual and jigging manual.
2. When the press has completed its pass over the truss, park the press head out of
the way of the truss.
3. Remove the truss from the table and place it on the Stand-Alone Conveyors.
• For systems using pneumatic ejectors, refer to the Operating the Pneumatic
Ejection System section.
Operating the Pneumatic Ejection System
After the connector plates have been pressed into the truss, if pneumatic ejectors are
present, take the following steps. These steps may differ according to setup configuration.
1. Ensure the press and/or gantry lift (the machine that lifts the roof press) is in the
correct position:
• For auto-eject systems, the press must be clear of the ejectors.
• For end-eject systems, the press must be parked on the gantry lift or at the
opposite end of the table.
2. Remove ALL slider pads from the tables before actuating ejectors.
• If, to aid a work flow, you choose not to remove a specific slider pad, make
sure to disable the ejector associated with that slider pad to avoid damage to
the ejector.
3. Ensure all desired table valves are open.
4. Step on the foot valve (new models) or turn hand valve to the extend position to
raise the ejectors.
• For independent setups:
a) Ensure setup ball valves are in correct positions to isolate setup.
b) If using a foot valve, ensure the shut-off valve for the chosen setup is
open.
!
WARNING
CRUSH AND CUT HAZARD.
Before turning on the equipment, make sure that all personnel
and equipment are clear.
Operation
Original Instructions: 001090 rev. C 16
• For operating entire line as one:
a) Ensure all setup ball valves are in the open position.
b) If using a foot valve, Ensure the shut-off valve connected to the
chosen foot valve is open and close all other shut-off valves.
c) If using a hand valve, ensure all hand valves are in the neutral
position.
5. The ejectors lift the truss off the table.
• For ejection off the side of the tables, the truss should slide onto the Stand-
Alone Conveyors. If auto-eject rollers are present and running, they will
automatically assist with this step.
• On end-eject systems, the pop-up ejectors, the gantry lift, and the press (if
parked on the gantry lift) will raise simultaneously. Push or pull the truss
across the pop-up ejectors to transfer the truss to the end of the table line.
6. Retract the ejectors back into the table by kicking the foot valve plate (new
models) or turning the hand valve to the retract position.
!
WARNING
CRUSH HAZARD.
When removing a truss from an end-eject system, use caution to
avoid coming into contact with the Finish Roller.
Failure to exercise caution may result in severe personal injury.
Chapter 5
Original Instructions: 001090 rev. C 17
Maintenance
Performing Maintenance Safely
Read the safety section starting on page vii and adhere to all rules and guidelines. This
section provides additional safety information specific to maintenance topics.
The recommended intervals for the maintenance items addressed in this section are listed
in Maintenance Checklist.
Before Operating This Machine
Review these warnings before operating this machine.
Purpose
of Chapter
This chapter provides step-by-step instructions and other information to help you
make repairs and perform preventative maintenance.
!
WARNING
HIGH PRESSURE, CRUSH, CUT, AND CHEMICAL HAZARDS
Read this section AND the safety section in the preliminary pages
before operating or maintaining this equipment.
Do not operate this machine until you have a thorough
understanding of all controls, safety devices, E-stops, and
operating procedures outlined in this manual.
Read and observe all hazard instructions. Failure to do so may
result in economic loss, property damage, and/or personal injury.
This manual must always be available to personnel operating and
maintaining this equipment.
!
WARNING
CRUSH AND CUT HAZARD
Guards must always be in place during operation to avoid serious
injury and possibly death.
Always replace guards after completing maintenance and before
removing the lockout/tagout device.
Maintenance
Original Instructions: 001090 rev. C 18
Lockout/Tagout
The lock and tag symbol shown here indicates that proper lockout/tagout procedures must
be used prior to starting the procedure where the symbol occurs.
Important Safety Information
Your Responsibilities
Detailed descriptions of standard workshop procedures, safety principles, and service
operations are not included in this manual. Although this manual contains some warnings
and cautions against specific service methods which could cause personal injury or
damage to the machine, it does not cover all conceivable ways of service which might be
done or the possibility of hazardous consequences of each conceivable way. If you intend
to handle, operate, or service the unit by a procedure or method not specifically
recommended by the manufacturer, first make sure that such a procedure or method will
not render this equipment unsafe or pose a threat to you and others.
It is the responsibility of the mechanic performing the maintenance or service on a
particular machine to:
!
WARNING
CRUSH AND CUT HAZARD.
Before turning on the equipment, make sure that all personnel
and equipment are clear.
!
WARNING
ELECTROCUTION AND HIGH PRESSURE HAZARDS
Always turn the power off by activating an E-stop when the
equipment is not in operation.
Always verify that all power to the machine has been turned off
and follow approved lockout/tagout safety procedures (OSHA 29
CFR 1910.147) before performing any maintenance on this
equipment.
If it is absolutely necessary to troubleshoot an energized
machine, follow NFPA 70E or the governing regulations at your
location for proper procedures and personal protective
equipment.
The components on this machine can cause severe injury if
adjusted improperly. Follow all procedures in this manual and do
not make adjustments to the machine without guidance from
MiTek or MiTek documentation.
Only trained personnel should make mechanical adjustments to
this machine.
Maintenance
Original Instructions: 001090 rev. C 19
1. Inspect the machine for abnormal wear and damage;
2. Choose a procedure which will not endanger his or her safety, the safety of others,
the equipment, or the safe operation of the machine;
3. Fully inspect and test the machine and the hydraulic, pneumatic and electrical
systems to ensure that the service to the machine has been properly performed and
that the machine, hydraulic, pneumatic and electric systems will function
properly; and
4. Ensure only qualified electricians perform electrical service work.
General Service Rules
1. The design may change or upgrades may occur for any particular component.
Always contact the factory before replacing components.
2. If inspection or testing reveals evidence of abnormal wear or damage to the
machine or if you encounter circumstances not covered in the equipment
manual—STOP—and consult MiTek. The machine must be repaired and serviced
according to the current specifications and procedures of MiTek, using
replacement parts with properties equal to or greater than those specified by
MiTek.
3. Use the correct tools and procedures on this machine, to avoid damage and
incorrect assembly.
4. Always install new gaskets, O-rings, cotter pins, etc., and place Loctite on bolts, if
required.
5. Torque bolts and fasteners to the correct specifications.
6. Clean parts in a nonflammable or high-flash-point solvent only.
7. Lubricate any sliding surfaces before assembly.
8. Many components are manufactured from high carbon, heat-treated steel. Do not
attempt to cold straighten, hot straighten, bend, or weld these components, as they
may fail under load causing serious personal injury or death.
!
WARNING
This machine uses high-voltage electricity, which may cause
serious personal injury or death.
NOTICE
Never use compressed air inside an electrical enclosure. It
may force contaminants into electrical connections.
Use a vacuum to remove dust from electrical enclosures.
Canned air is acceptable after vacuuming.
Maintenance
Original Instructions: 001090 rev. C 20
9. After re-assembly, check all parts for proper installation and operation before
putting the machine back into service.
10. It is beneficial to record all major maintenance and testing. This allows recurring
problems to be predicted and addressed before any production time is lost. Typical
reports and records should include:
• Date
• Serial number of machine
• Description of problems or symptoms
• Corrective action taken
• Parts required
11. MiTek will, from time to time, mail out service bulletins and updates for this
machine. Follow the service bulletins and updates accordingly and file them in
this equipment manual.
Making Adjustments and Replacing Parts
Be careful when making mechanical adjustments. Untrained personnel may damage the
machine or cause harm to themselves and others.
Special materials have been used for some of the components of this equipment. It is
critical to the future performance of this machine that only specified replacement parts are
used. Order all replacement parts through MiTek. Do not substitute parts without first
consulting MiTek to determine if it is safe and effective. No electrical system component,
cable, connector, or device should be modified, removed, disconnected, changed without
specific approval and guidance from MiTek.
!
WARNING
CRUSH AND CUT HAZARDS
Always replace guards after servicing.
Only qualified maintenance personnel shall repair, remove, or
replace guards and safety devices.
NOTICE
Failure to follow the step-by-step procedures in this chapter may
result in incorrect adjustment of this machine.
Only trained maintenance personnel should make mechanical
adjustments to this machine.
Use only the exact replacement parts specified in this manual.
Maintenance
Original Instructions: 001090 rev. C 21
Wearing Personal Protective Equipment
Testing the Safety of the Machine
The test procedure in the Safety section starting on page xv MUST be performed by
qualified personnel after ANY maintenance, adjustment, or modification.
The test should be performed before each shift starts to make sure that the safety features
remain in working order.
Cleaning and Inspecting
Cleaning
If it should become necessary to clean this machine, disconnect it from its power source
first. Do not use liquid cleaners, aerosols, abrasive pads, scouring powders or solvents,
such as benzene or alcohol. Use a soft cloth lightly moistened with a mild detergent
solution. Make sure the surface cleaned is fully dry before reconnecting power.
Use pneumatic air to regularly blow dust and debris off of the tables, ejection components,
and rollers. Make sure truss plates or other sharp objects are clear of all pneumatic and
electrical systems.
!
CAUTION
Follow OSHA guidelines to utilize the proper personal protective
equipment (PPE) while performing maintenance.
The most common include eye protection, hearing protection,
dust masks while blowing off sawdust, gloves while working with
solvents, and fire retardant clothing when troubleshooting an
energized machine.
!
CAUTION
CRUSH AND CUT HAZARD
Always replace guards after completing maintenance and before
removing the lockout/tagout device.
Operating a machine with guards removed may result in serious
injury or death.
NOTICE
Never use compressed air inside of electrical enclosures. It may
force contaminants into electrical connections.
Use a vacuum to remove dust from electrical enclosures. Canned
air is acceptable after vacuuming.
Maintenance
Original Instructions: 001090 rev. C 22
Inspecting the Ejectors
Check the clevis pin in the bell crank and all bolts for wear every three (3) months. Check
bumpers on the high-slope auto-ejectors for wear or damage and replace as needed. See
High Slope Ejector Bumpers for the location of each ejector bumper and replacement
instructions. If bumpers are not replaced, the link arm’s pivot holes will wallow out and
cause premature failure. Replace all other worn parts.
Inspecting the Ejection System as a Whole
Check that the tables are level with the auto-eject rollers on an annual basis.
Pneumatic System Maintenance
The pneumatic system controls the ejectors on the tables and the receiver stands (if
present).
Removing Pressure from the Pneumatic System
Most procedures involving the pneumatic system require the removal of pressure. Use the
following procedure to remove pressure from the system.
1. Prepare the pneumatic system to remove pressure:
a) In systems with foot valves (new models), ensure all shut-off valves are in the
open position.
b) In systems with hand valves, ensure all hand valves are in the neutral position.
2. Push the system shut-off valve on the filter/regulator assembly to the lockout
position so it cuts off air flow. See Figure 5-1.
3. Lockout/tagout through the hole on the yellow slide. See Figure 5-1.
4. Check the air pressure gauge reads 0 psi and actuate an ejector control valve (the
ejectors should not raise) to make sure all pressure has been bled from the system.
!
CAUTION
HIGH PRESSURE HAZARD.
Bleed all pressure from pneumatic lines before performing
maintenance on pneumatic components.
Pressurized components may move suddenly or vent air to
atmosphere, causing injury.
Maintenance
Original Instructions: 001090 rev. C 23
Filter/Regulator
The filter/regulator can be purchased directly from MiTek. Refer to the Parts List chapter
for instructions on ordering parts.
Replacing the Filter Element
The regulator uses a 40-micron filter element that must be replaced every six (6) months.
This filter can be purchased from MiTek. Refer to the Parts List chapter for instructions on
ordering parts.
1. When replacing the filter element,
the system must be free of pressure.
To depressurize the system see
Removing Pressure from the
Pneumatic System.
2. Remove the bowl from the
regulator body by turning it in the
direction indicated by unlock/lock
label while pushing up on the bowl.
Then pull down and remove the
bowl from the body.
3. Unscrew the white end-cap and
remove the old filter element.
4. Install the new filter element and
screw the white end-cap into place.
5. Place the bowl back onto the
regulator body by pushing up and
turning it in the direction indicated
by unlock/lock label. Make sure it
is securely attached before
returning pressure to the lines.
Adjusting the Pressure
The operating pressure of the pneumatic system should be 100 psi. The pressure
adjustment knob shown in Figure 5-1 controls the operating pressure. Do not adjust this
knob to change the speed of the ejectors and receivers. Adjustments to individual
cylinders can be made using the flow control valves on each cylinder. Refer to the
Cylinders section for this procedure.
WARNING
HIGH PRESSURE HAZARD.
To avoid injury, bleed all pressure from the lines before removing
the filter guard.
Ensure that the filter guard is securely attached to the regulator
body before returning pressure to the lines.
Figure 5-1: Filter/Regulator
Maintenance
Original Instructions: 001090 rev. C 24
To adjust the system pressure to 100 psi:
1. Unlock the pressure adjustment knob on the filter/regulator by pulling it straight
up.
2. Turn the knob clockwise to increase pressure or counterclockwise to decrease
pressure.
3. Once a pressure of 100 psi is achieved, push the knob down to lock it in place.
Manual Drain
The latest model of the filter/regulator automatically drains accumulated liquid. Previous
models of the filter/regulator require manual draining. At the bottom of the filter/regulator
is a thumbscrew that operates a drain. When condensation gathers in pneumatic lines, it
will show in the bowl’s sight glass. Where the sight glass comes in contact with water, it
turns red, indicating the water level. Open this drain periodically to drain fluid from the
system.
Additional Maintenance
If a filter/regulator is not operating at its optimum capacity, we recommend cleaning the
regulator and replacing the O-rings, gaskets, diaphragm, and valve assembly. Refer to the
Parts List chapter for instructions on ordering parts.
Setup Valve
Each setup has one setup valve that controls the air flow to the setup. The air entering the
setup valve is controlled by the foot valve (new models) or hand valve in each setup.
There are no controls on the setup valve assembly itself.
Preventive maintenance for the setup valve consists of replacing the O-rings, seals, and
valve head gasket when the quality of the air pressure begins to diminish. Refer to the
Parts List chapter for instructions on ordering parts.
Figure 5-2: Setup Valve
Maintenance
Original Instructions: 001090 rev. C 25
Control Valves
Foot Valve
A foot valve (new models) controls the air flow for one setup. If you experience any issues
with a foot valve, contact MiTek Machinery Division Customer Service. See Contact
Information.
Hand Valve
A hand valve (if present) controls the air flow for one
setup. Each hand valve is mounted on the bottom-chord
end of one table.
If the handle on the hand valve breaks, remove the
shoulder screw and replace the handle.
A service kit is available to replace the seals, valve
inserts, springs, etc. when needed. To reach these
components, remove the four (4) small screws on the
front of the valve assembly and move the valve
assembly away from the blue anchor plate. Unscrew
the two (2) screws on the back side and remove the
oval plate. Refer to the Parts List chapter for
instructions on ordering parts.
Figure 5-3: Hand Valve
Maintenance
Original Instructions: 001090 rev. C 26
Ejector Cylinders
Adjusting Cushion Valves
Some cylinders have adjustable cushion valves to decelerate the load and reduce
potentially destructive energy. These cushion valves sometimes need fine tuning to find
their ideal cushioning between the completely closed and completely open positions.
• A completely closed cushion valve causes the cylinder to slow abruptly near the
end of its stroke, increasing the cycle time.
• A completely open cushion valve prevents the cylinder from decelerating the
load, producing a jarring end impact.
If cylinders with cushion valves are not adjusted properly, adjust the cushion valve using
the following steps.
1. Lockout/tagout the pneumatic system and drain the lines of pressure in order to
prevent cylinder motion.
2. Slide underneath the table.
3. Turn the adjusting screw clockwise until the valve is completely closed. See
Figure 5-4 for location of screw.
4. Turn the adjusting screw counterclockwise a 1/2 turn.
5. Slide out from underneath the table and re-pressurize the system.
6. Actuate the cylinder using a normal load at normal speed.
7. Repeat steps 4-6 until the cylinder decelerates the load without the increased cycle
time that occurs with a completely closed valve or the jarring end impact that
occurs with a completely open valve.
• You may need to fine-tune the cylinder by 1/8 turns when you approach ideal
cushioning.
• Failure to properly maintain and calibrated the cushion valves may shorten
the lifespan of the cylinders.
Figure 5-4: Adjusting Table Cylinders
Flow control adjustment
screws located at both ends.
Cushion adjustment
screw located on
this end of cylinder.
(not shown)
Maintenance
Original Instructions: 001090 rev. C 27
Adjusting Flow Control Valves
Both ends of some cylinders have flow control valves that control the speed at which the
ejectors extend and retract. Adjust the flow control so that there is a smooth extend and
retract motion and all ejectors raise at approximately the same time. Failure to correctly
adjust the ejectors may lead to premature wear and damage to assembled trusses.
The location of the flow control valve that needs adjustment depends on whether the
cylinder is moving too quickly on the extending or retracting stroke. See Figure 5-4.
If a customer experiences cylinder responsiveness issues on a longer table line, MiTek
recommends adding a second air supply source to the opposite table end to help with air
flow management.
High Slope Ejector Bumpers
A visible degree of indentation on the bumpers is normal, but any bumpers showing
visible cracks should be replaced immediately. MiTek recommends keeping ejector
bumpers in stock, but if none are available, refer to the Parts List chapter for instructions
on ordering parts. The locations of the ejector bumpers are identified in Figure 5-5.
Figure 5-5: Ejector Bumper Locations
Stroke valve location increase speed decrease speed
Extend Rod end of cylinder Turn the adjusting screw
counterclockwise
Turn the adjusting screw
clockwise
Retract Cap end of cylinder Turn the adjusting screw
counterclockwise
Turn the adjusting screw
clockwise
Bumper 1
Bumper 2
Maintenance
Original Instructions: 001090 rev. C 28
Replacing a Ejector Bumper
1. Lockout/tagout the pneumatic system. See Removing Pressure from the
Pneumatic System.
2. Once pressure has been removed from the pneumatic system, the ejectors should
move freely. Use a board or other sturdy material to wedge the ejectors in an
upward position to allow access to the bumpers.
3. Use a hex key to loosen the bolts securing the bumper and remove it.
4. Use a hex key to secure the new bumper using the existing bolts.
5. Remove the material used to wedge the ejectors into an upward position to ensure
the ejectors can move freely.
Appendix A
Original Instructions: 001090 rev. C 29
Troubleshooting
Safety Notes for Troubleshooting
General Troubleshooting Safety Tips
• Read all warnings located in the safety section in the preliminary pages and
adhere to them at all times.
• When the blue lock shown in the margin appears, lockout/tagout at the disconnect
switch located on the equipment using approved methods described in OSHA 29
CFR 1910.147 before continuing with the procedure or troubleshooting.
• If the lockout/tagout graphic does not appear, it is recommended that you still de-
energize the machine unless energy is required for the troubleshooting process. If
it is absolutely necessary to troubleshoot an energized machine, follow NFPA 70E
for proper procedures and personal protective equipment.
• All electrical work must be performed by a licensed electrician.
• Read this manual for information and procedures related to the specific
maintenance or troubleshooting issue before attempting any maintenance.
• Safety goggles and a dust mask must be worn for all cleaning steps outlined in this
manual. When using cleaning and lubrication solutions, a respirator rated for use
with those solutions must be worn, as well as gloves resistant to the solution.
Purpose
of Appendix
This appendix describes possible problems and solutions that you may
encounter while operating the Roof Truss Tables.
!
WARNING
ELECTROCUTION, HIGH PRESSURE, CRUSH, CUT, AND
CHEMICAL HAZARDS.
Read all notes in this section AND the safety section in the
preliminary pages before operating or maintaining this
equipment.
Most solutions are described in more detail in the Maintenance
chapter, where there may be additional safety notes.
Troubleshooting
Original Instructions: 001090 rev. C 30
Electrical Troubleshooting Safety Tips
• Make sure that you have the proper tools for the job. See page 31.
• Make sure that the person performing the troubleshooting is qualified from an
electrical knowledge standpoint. If you feel uncertain about troubleshooting
electrical power, remember that the cost of an injury far outweighs the cost of
hiring an electrician.
• Remove rings or watches. They are extremely conductive material and may catch
on small components.
• Get a helper. You are most likely going to need an extra hand at some point, and
you shouldn’t perform electrical work without someone close by to help if you get
injured.
• Be patient. Take your time and stay alert. Never take shortcuts or become too
confident in what you are doing.
• Take notes recording what you have checked and what the readings were. This is a
good way to check your work when you are finished. Sometimes, the machine
won’t work because a wire was removed for testing and overlooked when
cleaning up. Having notes makes the process go much more smoothly.
• ALWAYS turn the power off if you are checking for ohms or swapping PLC cards.
• ALWAYS push an E-stop button before approaching a machine for any reason. If
you are working on encoders, pushing an E-stop is especially important. An
interruption to a powered encoder may cause components to move without
warning.
• Wear appropriate PPE (personal protective equipment) for working with live
power.
Troubleshooting
Original Instructions: 001090 rev. C 31
Getting Started with Troubleshooting
Tools Required
When the toolbox shown in the margin appears, you should gather the tools listed below it
before beginning the procedure next to which it appears.
Before beginning the troubleshooting process or calling MiTek Machinery Division
Customer Service, gather the following tools:
• Insulated slotted screwdriver
• Insulated Phillips screwdriver
• Equipment manual and drawings, including any electrical schematics
• Pen and notepad
• Multimeter
A multimeter is an electronic measuring instrument. The analog versions were
referred to as a volt-ohm-meter (VOM). Digital models are referred to as digital
multimeters (DMM). Your multimeter should have the following features:
• Voltage (volts) measurement
• Resistance (ohms) measurement
• Current (amps) measurement
• Ability to measure both AC and DC power
• Autoranging feature
• PPE as required by NFPA 70e
Troubleshooting
Original Instructions: 001090 rev. C 32
First Steps
Mechanical Troubleshooting
Always clean and lubricate the equipment as a first step in most troubleshooting
processes. Most mechanical malfunctions are caused by inadequate preventative
maintenance.
Electrical Troubleshooting
1. Lockout/tagout at the disconnect switch located on the equipment.
2. Vacuum and dust the electrical enclosure.
3. Remove the lockout/tagout equipment and attempt to run the Roof Truss Tables
again. If that did not solve the problem, proceed with the next step.
4. Adhere to all regulations and guidelines given in NFPA 70e and in your
company’s energy control program. Some important safety tips are addressed on
page 29.
5. Determine where the electrical problem begins. To do this, you need a multimeter.
• Determine if you are working with AC (alternating current) or DC (direct
current) before checking voltage.
• Measure incoming and outgoing voltage to and from components. Proceed in
a logical order determined by your machine’s specific problem, and write
down the order that you check each component and the amount of voltage that
the multimeter registers.
NOTICE
Never use compressed air inside an electrical enclosure. It may
force contaminants into electrical connections.
Use a vacuum to remove dust from electrical enclosures. Canned
air is acceptable after vacuuming.
!
WARNING
ELECTRICUTION HAZARD.
All electrical work must be performed by a licensed electrician.
If it is absolutely necessary to troubleshoot an energized
machine, follow appropriate guidelines.
Troubleshooting
Original Instructions: 001090 rev. C 33
Problems and Solutions
Table A-1: Troubleshooting the Pneumatic System
Problem Possible Cause Possible Solution
See
Page
End fitting blown off of
hose
Improper assembly procedures,
improper skiving, incorrect hose-
end series, mixing competitor’s
components with
Weatherhead
components
Ensure that the hose-end is the
correct fitting and is properly
installed; never intermix
components
Hose end appears to
have been pinched on
one side
Collet is becoming worn Replace the collet
Hose has burst or
cracked
Abrasion, hose is twisted or kinked
Remove possible abrasives and
twists or kinks in the hose
Excessive pressure
Check pressure relief for damage
or improper setting
Hose puncture by truss plate
Check for damage and replace
hose
Receivers and
ejectors not actuating
at same time
Flow controls need adjustment
Adjust flow controls on receiver or
lifter cylinder
22
One table in setup not
working (receiver and
ejector)
Table valve shut off Open table valve
15
Table isolated from rest of setup
Ensure 22-mm ball valve on
secondary header is open
between table and setup
The ejectors and
receivers on one
setup do not function
with the other setups
when operating entire
system together
The hand valve for the setup that
is not operating correctly is shut off
If using foot valve, check shut-off
valves are properly configured. If
using hand valve, move to the
neutral position when operating
the entire system as one setup
15
Ejectors do not have
enough power to lift
truss off table
System pressure set too low
Increase pressure regulator to
recommended 100 psi
23
Air loss in system
Check all connections and hoses
for air leaks
Air leak at 22-m or 28-
mm aluminum tube
fittings
Loose connection
Ensure system is depressurized.
Disconnect tube from fitting and
re-connect
O-ring damaged
Replace fitting and remove burrs
and sharp edges from tube
Loose connection
Ensure system is depressurized.
Disconnect hose and ensure hose
has clean 90° cut
Air leak in hose Hose damaged
Replace hose; ensure area is free
and clear of debris including nail
plates
Appendix B
Original Instructions: 001090 rev. C 34
Parts List
Ordering Parts
Use the MiTek web site to locate parts and part numbers, then order them using one of
these methods:
Stocking Spare Parts
This appendix lists the names of the parts that should be kept in stock at your facility to
greatly reduce maintenance down-time.
Safety Notes for Replacement Parts
Purpose
of Appendix
This appendix lists MiTek replacement part numbers for your Roof Truss Tables.
By E-Mail By Phone
Send an e-mail to
[email protected] with all
relevant information,
including the part number.
Call
1-800-523-3380.
NOTICE
Use only parts purchased from MiTek to replace parts on your
Roof Truss Tables.
Parts from other sources may damage your Roof Truss Tables.
!
WARNING
ELECTRICAL HAZARD.
All electrical work must be performed by a licensed electrician.
Follow approved lockout/tagout procedures
(OSHA 29 CFR 1910.147)
Parts List
Original Instructions: 001090 rev. C 35
List of Parts to Keep in Stock
Keep one of each of these parts in stock.
1. Ball valve assembly (tees, connectors, and hoses)
2. Cylinder assembly receivers (cylinder, connectors, and hoses)
3. Cylinder assembly tables (cylinder, connectors, and hoses)
4. Filter/regulator (filter element for regulator)
5. Setup Valve Assembly (tees, connectors, and hoses)
!
WARNING
ELECTROCUTION AND HIGH PRESSURE HAZARDS.
Always turn the power off by activating an E-stop when the
machine is not operating.
Always verify that all power to the machine is off and followed
approved lockout/tagout procedures (OSHA 29 CFR 1910.147)
before performing any maintenance.
Turn off the air switch or shutoff valve if appropriate. Bleed
pneumatic lines if appropriate.
Appendix C
Original Instructions: 001090 rev. C 36
Maintenance Checklist
Using the Maintenance Checklists
Copy these checklists and place the copies with the Roof Truss Tables. Leave the original
checklists in this manual for future use.
Safety Notes for the Maintenance Checklists
Purpose
of Appendix
This appendix consists of checklists to plan and record preventative
maintenance procedures.
!
WARNING
HAZARD.
Perform the safety tests described in “Safety Tests” on page xv or
“Prueba de seguridad” on page xxxi before operating the machine
after performing maintenance or repairs.
!
WARNING
ELECTROCUTION AND HIGH PRESSURE HAZARDS.
Always turn the power off by activating an E-stop when the
machine is not operating.
Always verify that all power to the machine is off and followed
approved lockout/tagout procedures (OSHA 29 CFR 1910.147)
before performing any maintenance.
Bleed all pressure from pneumatic lines before performing
maintenance on pneumatic components.
Pressurized components may move suddenly or vent air to
atmosphere, causing injury.
Maintenance Checklist
Original Instructions: 001090 rev. C 37
Checklist
Year __________
Action Frequency Page Initials / Date
1-shift 2-shifts
Check filter/regulator filter Every 2
weeks
Every 2
weeks
23
Replace filter/regulator
filter
Every 6
months
Every 6
months
23
Check Setup Valves Every
year
Every
year
24
Check that the tables,
receiver stands, and auto-
eject rollers are level (for
systems with those
options)
Every
year
Every
year
22
Observe the operation of
ejectors and repair as
needed.
Every 3
months
Every 3
months
26
Check the condition of
high slope ejector
bumpers and replace as
needed
Every 3
months
Every 3
months
27
Purchase and install new
filter/regulator service kits
Every
2 years
Every
year
23
Date Notes
!
WARNING
Lockout/tagout before performing maintenance.
If power is required, make sure all personnel are clear of
the restricted zone.
Appendix D
Original Instructions: 001090 rev. C 38
Drawing Set
Drawings are inserted in the back of the manual or included in a separate binder,
depending on the machine.
Purpose
of Appendix
This appendix consists of a list of schematics and other drawings to help you
understand and troubleshoot your machine.
Description Drawing Number
Base Air Kit Assembly 31340-501
Filter / Regulator Assembly 31340-601
Foot / Setup Valve Assembly 31345-501
Auto Eject Assembly
(high-sloped side ejection, with auto-eject roller)
31220-501
End-Eject Assembly 31290-501
Table Cylinder Assembly 84883-501
Appendix E
Original Instructions: 001090 rev. C 39
Document Evaluation
MiTek Machinery Division makes a continuous effort to provide customers with helpful,
accurate documentation.
Please complete this form to provide us with comments or suggestions that improve the
quality of our documentation.
Purpose
of Appendix
This appendix provides a form so that you may evaluate this manual.
Document Evaluation
Original Instructions: 001090 rev. C 40
Document Evaluation Form
General Evaluation
Specific Evaluation
Roof Gantry Tables Operation and Maintenance Manual 001090 rev. C
Poor fair good excellent
Content
Organization
Accuracy
Clarity
Completeness
Illustrations
Readability
Identify any inaccuracies in this manual. Please include page numbers.
What are the best features of this manual?
What are the worst features of this manual?
Name: Date:
Company: Address:
Phone: E-mail:
Return the form by mail:
MiTek Machinery Division
301 Fountain Lakes Industrial Drive
Saint Charles, MO 63301
Attn: Engineering Manager
Return this form by fax:
636-328-9218
Attn: Engineering Manager
If you do not receive a reply within 45 days, please call Machinery Division Customer Service and ask for
the documentation specialist or engineering manager.
Glossary
Original Instructions: 001090 rev. C 41
Glossary
Purpose
of Appendix
This appendix provides definitions of terminology that apply to your machine.
actuate to activate, put into action
affected employee an employee whose job requires him or her to operate or use
a machine or equipment on which servicing or maintenance
is being performed under lockout or tagout, or whose job
requires him or her to work in an area in which such
servicing or maintenance is being performed
aisle pad a type of jigging used when a connector plate needs to be
embedded where the table surface gives way to a walk-
through aisle
amperage the strength of an electric current, expressed in amperes
anchor plate a steel plate that holds the tables in place; it is anchored to
the concrete floor and the tables are welded to it
authorized employee a person who locks out or tags out a machine or equipment
in order to perform servicing or maintenance on that
machine or equipment; an affected employee becomes an
authorized employee when that employee’s duties include
performing servicing or maintenance covered under this
section
auto-eject a pneumatic system that raises the truss off the tables and
automatically places the truss on the stand-alone conveyors,
may work in tandem with an auto-eject roller
beacon a light that displays one of several colors to represent the
state of the machine
bus bar an electrical device that allows multiple gantry heads to be
used simultaneously
connector plate the nail-plate that is embedded into production material to
hold it together
cushion an attribute of a hydraulic cylinder that allows for
adjustment of pressure at the end of a stroke
Glossary
Original Instructions: 001090 rev. C 42
end-eject a pneumatic system that raises the truss off the tables and
allows the truss to be manually pushed or pulled off the end
of the tables; this system requires that the gantry head rolls
back over the truss or a device must be installed to raise the
gantry head when it is parked
energized connected to an energy source or containing residual or
stored energy
energy isolating device a mechanical device that physically prevents the
transmission or release of energy, including but not limited
to the following: manually operated electrical circuit
breaker; a disconnect switch; a manually operated switch by
which the conductors of a circuit can be disconnected from
all ungrounded supply conductors, and in addition, no
circuit can be operated independently; a line valve; a block;
and any similar device used to block or isolate energy—
push buttons, selector switches, and other control circuit
type devices are not energy isolating devices
energy source any source of electrical, mechanical, hydraulic, pneumatic,
chemical, thermal, or other energy
foot valve a pneumatic foot valve that operates the setup valve to
control the release or cessation of air in each setup; it is
located on the bottom-chord end of one table in each setup.
gantry head the entire traveling weldment that houses a roller to embed
connector plates
jigging any of several devices used to hold the truss in place on the
tables
laser scanner a safety device that monitors a defined area in front of a
machine for obstructions, slows the machine when it detects
a distant obstruction, and triggers an E-stop when it detects
a nearby obstruction
layout a scaled diagram of the location of components and the
space that they occupy
leveling screws large cap head screws that thread into the table legs and
allow the table height to be adjusted and leveled
light bar a perimeter access guarding device used on some models
that uses multiple light beams to detect when something is
in the way of the gantry head and stops the machine to
prevent injury or damage
lockout device a device that utilizes a positive means such as a lock, either
key or combination type, to hold an energy isolating device
in the safe position and prevent the energizing of a machine
or equipment, including blank flanges and bolted slip
blinds; should be standardized within the facility in at least
one of the following criteria: color; shape; or size; and
additionally, in the case of tagout devices, print and format
shall be standardized
Glossary
Original Instructions: 001090 rev. C 43
lockout/tagout a means of isolating a piece of equipment from its energy
source so maintenance can safely occur; guidelines
provided in OSHA 29 CFR 1910.147
motor end used to indicate which end of the gantry head is being
discussed; the end of the gantry head that houses the motor
operator control
interface
the method in which the operator controls the machine; it
may be a touch screen, a control panel, etc.
outer side refers to the end of the gantry head housing; the side farthest
from the tables; both ends have an outer side—one can see
the outer side of the one end when standing at the pendant
control station
pilot valve see hand valve
plate see connector plate
PLC (programmable logic controller) a solid-state control device
that can be programmed to control process or machine
operations. It consists of five basic components: processor,
memory, input/output module, the power supply, and the
programming device.
port a connection point for a peripheral device
potentiometer a control knob that is a dial; allows a range of values to be
set by turning the dial, commonly found on the PLC
proximity switch a switch that uses an electromagnetic field to detect when an
object is near, there is no physical contact between the
object and the switch; inductive proximity switches detect
only metal objects, capacitive proximity switches can sense
both metallic and non-metallic objects
puck a type of jigging that is small and round
qualified person a person or persons who, by possession of a recognized
degree or certificate of professional training, or who, by
extensive knowledge, training, or experience, has
successfully demonstrated the ability to solve problems
relating to the subject matter and work—ANSI B30.2-1983;
one who has skills and knowledge related to the
construction and operation of the electrical equipment and
installations and has received safety training on the hazards
involved—NEC2002 Handbook
receiver bar the light bar that receives the signal from the transmitter bar;
every light bar set consists of a receiver bar and a
transmitter bar
regulator a component of the pneumatic system that connects to the
main air source and regulates the air pressure allowed into
the system
roller the large roller inside the gantry head that innately embeds
the plates into the truss
Glossary
Original Instructions: 001090 rev. C 44
scanner see laser scanner
hand valve a pneumatic valve that operates the setup valve to control
the release or cessation of air in each setup; it is located on
the bottom-chord end of one table in each setup.
setup valve a component of the pneumatic system that control the flow
of air to the rest of the setup, controlled by the hand valve
shut-off valve a valve in the setup valve assembly that controls air flow to
all tables in a setup
slider pad a type of jigging used when a connector plate needs to be
embedded where the table surface gives way to a slot for the
ejector
solenoid an assembly used as a switch consisting of a coil and a
metal core free to slide along the coil axis under the
influence of the magnetic field
stand-alone conveyor the conveyor system that carries the truss from the tables to
the Finish Roller and out to the stacker
stop a type of jigging that is long and straight
tagout device a prominent warning device, such as a tag and a means of
attachment, which can be securely fastened to an energy
isolating device in accordance with an established
procedure, to indicate that the energy isolating device and
the equipment being controlled may not be operated until
the tagout device is removed; should be standardized within
the facility in at least one of the following criteria: color;
shape; or size; and additionally, in the case of tagout
devices, print and format shall be standardized
take-up bearing adjusts the height of the roller
torque a turning or twisting force
auto-eject roller a motorized roller sitting perpendicular to the tables on an
auto-eject system; it automatically transfers the truss from
the Ejectors to the stand-alone conveyors
transmitter bar the light bar that transmits the signal to the receiver bar;
every light bar set consists of a receiver bar and a
transmitter bar
VFD (variable frequency drive) controls the speed of a cycle
voltage Equal to the difference of electric potential between two
point on a conducting wire carrying a constant current of
one ampere when the power between the points is one watt
Appendix G
Original Instructions: 001090 rev. C 45
A
air hose
troubleshooting 33
air pressure, adjusting regulator 23
C
checklists
maintenance 36
weekly checklist 37
controls see operator controls
corrections ii
cushion valves see pneumatic system
customer service 4
cylinders
cushion valves 26
flow control valves 27
D
document evaluation 40
E
ejectors
troubleshooting 33
e-mail support see customer service
emergency stop see E-stop
errors ii
E-stop 13
evaluation of document 40
F
filter/regulator 23
replacement 23
flow control valves see pneumatic system
G
graphics 6
L
lockout/tagout
electrical procedure xii, xiii
pneumatic procedure xiv
pneumatic system 22
procedure xxviii
symbol 18
lubricator 22
M
Machinery Division Customer Service 4
maintenance
checklists 36
safety 17
manual
introduction 1
navigation 3
purpose 1, 2
manual evaluation see document evaluation
marking restricted zone 10
O
oil, lubricator 22
operating procedure 15
operation
quick start procedure 15
stopping 13
operator controls 13
P
parts list 34
phone support see customer service
pilot valve, see setup pilot valve 25
pneumatic system
air leak 33
cylinders
cushion valves 26
flow control valves 27
filter/regulator
maintenance 23
lubricator, maintenance 22
maintenance 22, 23
removing pressure 22
system pressure, adjusting 23
troubleshooting 33
purpose of manual 1, 2
R
receivers
troubleshooting 33
replacement parts see parts list
restricted zone xvi, 10
return goods ii
S
safety
conformity xxi
during troubleshooting 29
general rules viii
Index
Purpose
of Appendix
This appendix consists of an index to assist in navigating the manual.
Index
Original Instructions: 001090 rev. C 46
indicators vii
lockout/tagout xi
marking restricted zone xvi
restricted zone xvi
safety test xxxi
signal words vii
symbols xvii
tests xv
troubleshooting with energy xiv
safety signs see safety symbols
setup
troubleshooting 33
setup pilot valve 25
spare parts see parts list
stop motion see E-stop
support see customer service
