Komatsu D51EX-24, Operation & Maintenance Manual

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METHOD FOR ADJUSTING
k k
WARNING
Never loosen plug (1) more than 1 turn.
If plug (1) is loosened more than 1 turn, there is a danger
of plug (1) flying out under the high internal pressure of
the grease.
Never loosen any part other than plug (1). Never put your
face in the mounting direction of plug (1).
If the track tension cannot be loosened by the above pro-
cedure, ask your Komatsu distributor for repair.
METHOD FOR INCREASING TRACK TENSION
NOTICE
• The safety indicator is stuck to the back of cover (3). Take care not to damage the safety indicator.
• When removing cover (3), be careful not to let any dirt or soil get in.
Prepare a grease pump.
1.
Remove cover (3).
2.
Pump in grease through grease fitting (2) by using a
grease pump.
Grease can be pumped in until dimension (S) becomes
zero (0). If the track tension is still loose, the pins and
bushings are excessively worn. The pins and bushings
need to be turned 180 deg. or replaced. Ask your Komatsu
distributor for repair.
3.
Move the machine backward and forward.
4.
Check the belt tension again.
Check that the track tension is proper.
If the track tension is not proper, adjust it again.
METHOD FOR DECREASING TRACK TENSION
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WARNING
It is extremely dangerous to release the grease by any method other than the following procedure.
If track tension is not relieved by this procedure, contact your Komatsu distributor for repairs.
NOTICE
• The safety indicator is stuck to the back of cover (3). Take care not to damage the safety indicator.
• When removing cover (3), be careful not to let any dirt or soil get in.
MAINTENANCE MAINTENANCE PROCEDURE
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