Maintenance - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

BACKHOE TELESCOPIC ARM

6.5.4 MAINTENANCE

The telescopic arm requires two maintenance operations:
1 - Lubrication of the joints (see "4.5.1 LUBRICATION DIAGRAM").
2 - Adjustment of the slide guide (8) slack, which must be carried out occasionally, when impacts or vibrations are
noticed during work.
6.5.4.1 ADJUSTING THE GUIDE SLACK
When leaving the operator's seat during the adjustment of
q
the guides, remove the ignition key.
Adjust the screws and guides one by one.
q
Do not place tools in the space between the safety locks
q
and the arm.
1 - Position the machine on flat ground and lower the stabilizers.
2 - Lift the boom, fold the bucket completely and extend the
telescopic part (7) completely.
3 - Fold the arm until the slide guides (8) are perpendicular to
the ground and in any case positioned so that the extending
part is completely free and does not overload the guides.
4 - Stop the engine.
5 - Check the side on which the adjusting dowels (9) of the
guides protrude more. Adjust by working on this side only.
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WARNING
7
8
9
RKA14390