Komatsu PC15MRX-1 Operation And Maintenance Manual page 171

MAINTENANCE
Adjustment
There is danger of plug (1) flying out under the high inter-
nal pressure of the grease. Never loosen plug (1) more
than 1 turn.
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 with the proce-
dure given here, please contact your Komatsu distributor.
When increasing tension
Prepare a grease gun.
1. Pump in grease through grease plug (1) with a grease
gun.
2. To check that the tension is correct, move the machine
slowly forward (7 - 8 m (23 ft - 26 ft 3 in)).
3. Check the track tension again, and if the tension is not
correct, adjust it again.
4. Continue to pump in grease until dimension S becomes
zero (0). If the tension is still loose, the pin and bushing
are excessively worn, so they must be either turned or
replaced.
Please contact your Komatsu distributor for repairs.
WARNING
MAINTENANCE PROCEDURE
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