August 2018
Part No. 57.4400.9220GT
GTH-2506 GTH-3007
7-1
Section 7 • Schematics
Schematics
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.
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.
About This Section
There are two groups of schematics in this section.
Electrical Schematics
WARNING
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Hydraulic Schematics
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
