Grease pump
1.
Pump in grease through grease fitting (2) by using a grease pump.
Grease fitting (2) forms one part with plug (1).
2.
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 ground), then stop the ma-
chine.
3.
Check the track tension again, and if the tension is not cor-
rect, adjust it again.
4.
Grease can be pumped in until dimension (S) becomes
0 mm. If the track tension is still loose, the pins and bush-
ings are excessively worn. The pins and bushings must be
inverted or replaced. Ask your Komatsu distributor for re-
pair.
METHOD FOR DECREASING TRACK TENSION
WARNING
Never loosen plug (1) more than 1 turn.
If it 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).
1.
Loosen plug (1) gradually to release the grease.
2.
If the grease does not come out smoothly, move the machine forward and backward a short distance.
3.
Tighten 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 correct, 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 (VERTICAL PIN TYPE)
Replace the bucket teeth before the adapter starts to wear.
MAINTENANCE PROCEDURE MAINTENANCE
4-26
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