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MAINTENANCE
Adjustment
The grease contained in the hydraulic cylinder is pressurized. For this reason, do not give the grease
valve (1) more than one turn when loosening it; in fact, if the valve is loosened excessively it may be
pushed out due to the grease pressure and this is very dangerous for the operator.
Do not loose any component apart from the valve (1). If the track tension does not decrease after this
operation, contact your Komatsu distributor.
If the resistance met when injecting the grease is excessive, move the machine forward and backward
covering a short distance.
To increase the track tension, proceed as follows:
1. Carefully clean the grease valve (1) and inject grease
through the grease nipple (2) until reaching the desired
tension.
2. When after the injection of grease the idler roller sliding
plate reaches the measure «S» of 0 mm and the track is
not sufficiently stretched, this means that the pins and
bushings are excessively worn. Therefore, it is necessary
to exchange or replace the pins and bushings.
For any replacement or repair, contact your Komatsu
distributor.
DANGER
WARNING
WEAM014500
MAINTENANCE PROCEDURES
4-35
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