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Operating Instructions Wheel Loader TL120
Trouble-Shooting 8
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 Remedy
No steering movement
Oil supply to pump interrupted Check and repair suction line
Hydraulic pump damaged Repair or replace
Priority valve damaged Remedy fault (call Service Agent)
Steering cylinder damaged Remedy fault (call Service Agent)
Steering cylinder damaged Repair
Mechanical fault Repair
Insufficient performance of service brake
Wear of drum brake Adjust or repair (call Service Agent)
Master brake cylinder damaged Repair or replace (call Service Agent)
Mechanical fault Repair (call Service Agent)
Insufficient performance of parking brake
Wear of drum brake Adjust or repair
Mechanical fault in brake actuation Repair and/ or re-adjust
Hydrostatic travel drive without neutral position
Switch for travel direction damaged Repair or replace
Solenoids of valve damaged Repair or replace
Neutral position incorrectly adjusted Check, re-calibrate (call Service Agent)
Internal damage to travel pump Replace travel pump
Engine idling too high Re-adjust
Table 31 Table of faults
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