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Service and Repair Manual
Fault Codes
Section 4
Faul t Codes
Observe and Obey:
Troubleshooting and repair procedures shall
be completed by a person trained and qualified
on the repair of this machine
Immediately tag and remove from service a
damaged or malfunctioning machine.
Repair any machine damage or malfunction
before operating the machine.
Unless otherwise specified, perform each
procedure with the machine in the following
configuration:
• Machine parked on a firm, level surface
• Key switch in the off position with the key
removed
• The red Emergency Stop button in the off
position at both the ground and platform
controls
• Wheels chocked
• All external AC power supply disconnected
from the machine
• Boom in the stowed position
• Turntable secured with the turntable rotation
lock
• Welder disconnected from the machine (if
equipped with the weld cable to platform
option)
68
Before Troubleshooting:
Read, understand and obey the safety rules
and operating instructions in the appropriate
operator's manual on your machine.
Be sure that all necessary tools and test
equipment are available and ready for use.
Read each appropriate fault code thoroughly.
Attempting short cuts may produce hazardous
conditions.
Be aware of the following hazards and follow
generally accepted safe workshop practices.
Note: Two persons will be required to safely
perform some troubleshooting procedures.
Z-40/23N, Z-40/23N RJ
September 2016
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Part No. 1268528
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