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MAINTENANCE
SERVICE PROCEDURE
REPLACE ELEMENT OF FRONT DRIVE OIL FILTER
(HD325 only the machine of 4WD specifications)
1.
Using a wrench, turn front drive oil filter case (1) to the left and
remove it.
2.
Install a new filter, then tighten the case.
3.
Run the engine at idling for a short time, then stop the engine
and check that the oil is up to the specified level. For details,
see "CHECK OIL LEVEL IN FRONT DRIVE OIL TANK, ADD
OIL (PAGE 3-63)".
NOTICE
Always use a genuine Komatsu element.
Replace the filter gasket and O-ring with new parts.
Coat thinly with clean oil when installing.
CHECK WEAR OF FRONT DISC BRAKE PADS
WARNING
If the pad is continued to use after the period of wear limit, not only the disc will be damaged but also the brake will loose its
effect, and it is dangerous. If the period of wear limit approaches, check frequently the condition to change the pad at proper
time.
Perform inspection every 250 hours if the work site is covered by lots of earth and sand and if it is at the location where the foot
brake is frequently used.
1.
Insert the inspection gauge into the wear inspection hole (1)
and check.
2.
When the stepped part of the gauge touch the caliper, it
indicates wear limit (remaining thickness of pad: 3 mm (0.12
in)). So, change the pad.
After the inspection, if it is necessary to change the pad, contact your Komatsu distributor.
Left and right wheels are not always the same in terms of the amount of wear of the pad. So, perform the inspection
for both left and right. If either side shows the wear limit, be sure to change all 8 pads.
If the work is performed on the muddy and watery ground, the mud sticks to caliper or disc. Leaving the mud will
increase the wear of pad, so wash out thoroughly with water.
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