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MAINTENANCE
METHOD OF CHECKING
1.
Travel the machine forward on a flat place, and stop with-
out applying the brake.
At this time, stop so that the center of link (B) is on carrier
roller (A) as shown in the figure.
2.
Place a straight bar between the carrier roller and idler as
shown in the figure.
When clearance (C) between the bar and grouser is 20 to
30 mm at the center, the tension is in the standard range.
If the tension is out of the standard range, adjust the track
tension.
METHOD FOR ADJUSTING
k
k
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.
WARNING
MAINTENANCE PROCEDURE
4-23
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