Troubleshooting - Terex TL120 Operating Instructions Manual

8 Trouble-Shooting
Operating problems are often the result of incorrect
handling of the machine, the use of unsuitable
materials or irregular maintenance.
The following Table presents a summary of a range of
problems and their probable causes.
If a problem can only be eliminated through repair,
then your responsible Service Agent must be called
in.
8.1 Engine
All faults in the diesel engine must be examined as
described in their specific Engine Operating
Instructions.
During the warranty period, malfunctions must be
dealt with by the responsible Service Agent or a
specialist workshop.
8.2 Table of faults
Possible cause
No steering movement
Oil supply to pump interrupted
Hydraulic pump damaged
Priority valve damaged
Steering cylinder damaged
Steering cylinder damaged
Mechanical fault
Insufficient performance of service brake
Wear of drum brake
Master brake cylinder damaged
Mechanical fault
Insufficient performance of parking brake
Wear of drum brake
Mechanical fault in brake actuation
Hydrostatic travel drive without neutral position
Switch for travel direction damaged
Solenoids of valve damaged
Neutral position incorrectly adjusted
Internal damage to travel pump
Engine idling too high
Table 31 Table of faults
Operating Instructions Wheel Loader TL120
Remedy
Check and repair suction line
Repair or replace
Remedy fault (call Service Agent)
Remedy fault (call Service Agent)
Repair
Repair
Adjust or repair (call Service Agent)
Repair or replace (call Service Agent)
Repair (call Service Agent)
Adjust or repair
Repair and/ or re-adjust
Repair or replace
Repair or replace
Check, re-calibrate (call Service Agent)
Replace travel pump
Re-adjust
Trouble-Shooting 8
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