Komatsu PC700LC-11, Operation & Maintenance Manual

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4.
Grease can be pumped in until dimension (A) becomes
148 mm. If the track tension is still loose, the pins and
bushings are excessively worn. The pins and bushings
must be inverted or replaced. Ask your Komatsu distributor
for repair.
(B) Grease cylinder
METHOD FOR DECREASING TRACK TENSION
k k
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, ask your Komatsu distributor for repair.
1.
Loosen the plug (1) gradually to discharge the grease.
2.
If the grease does not come out smoothly, move the ma-
chine forward and backward a short distance.
3.
Tighten the plug (1).
4.
To check if the tension is correct, run the engine at low
idle, move the machine slowly forward (by an amount
equal to the length of track on the ground), then stop the
machine.
5.
Check the track tension again, and if the tension is not cor-
rect, adjust it again.
If the track tension cannot be decreased by the above procedure, ask your Komatsu distributor for repair.
METHOD FOR DECREASING TRACK TENSION
k k
WARNING
There is danger of plug (1) flying out under the high internal 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).
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, ask your Komatsu distributor for repair.
1.
Loosen the plug (1) gradually to discharge the grease.
2.
If the grease does not come out smoothly, move the ma-
chine forward and backward a short distance.
3.
Tighten the plug (1).
4.
To check if the tension is correct, run the engine at low
idle, move the machine slowly forward (by an amount
equal to the length of track on the ground), then stop the
machine.
5.
Check the track tension again, and if the tension is not cor-
rect, adjust it again.
If the track tension cannot be decreased by the above procedure, ask your Komatsu distributor for repair.
METHOD FOR REPLACING BUCKET TEETH (KMAX)
Replace the bucket teeth before the adapter starts to wear.
MAINTENANCE MAINTENANCE PROCEDURE
4-25