Komatsu PC22MR-3, Руководство по эксплуатации и техническому обслуживанию

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MAINTENANCE PROCEDURES
MAINTENANCE
4-34
CHECKING AND ADJUSTING THE STEEL TRACK TENSION 4
The pins and bushings of the undercarriage wear out to different degrees, depending on the work conditions and
on the characteristics of the surface on which the machine works. Therefore it is necessary to check the track
tension frequently and to adjust it when necessary.
NOTICE
To carry out the check and the corresponding maintenance operation, stop the machine on firm and level
ground. Check both tracks.
Checking the cartridge
1. With the engine idling, move the machine forward of a
distance corresponding to the length of the track on the
ground, then lower the equipment to the ground and stop
the engine.
2. Choose a perfectly flat rod (3) long enough to cover the
distance between the idler roller (1) and the track sliding
plate (2), then position it on the track.
3. Measure the maximum deflection between the upper
surface of the track and the lower surface of the rod.
q
Standard deflection
The deflection “a“ should be included between 5 and
15 mm.
If the track tension does not correspond to the standard value,
adjust it by proceeding as indicated below.
WEAM014500