August 2018
Part No. 57.4400.9220GT
GTH-2506 GTH-3007
6-1
Section 6 Fault Codes
Fault 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 repair
procedure with the machine in the following
configuration:
· Machine parked on a firm, level surface
· Boom in the stowed position
· Key switch in the off position with the key
removed
· Wheels chocked
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.
Be aware of the following hazards and follow
generally accepted safe workshop practices.
DANGER
Crushing hazard. When testing
or replacing any hydraulic
component, always support
the structure and secure it from
movement.
WARNING
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
WARNING
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
General Repair Process
Malfunction
discovered
Identify
symptoms
Troubleshoot
Perform
Repair
Inspect
and test
Return to
service
problem
still exists
problem
solved
