MAINTENANCE PROCEDURE
EVER
Y 500 HOURS MAINTENANCE
Maintenance for every 50 and 250 hours should be performed at the same time.
METHOD OF CHECKING LOOSENESS OF BUCKET CYLINDER STROKE SEN-
SOR WIRING HARNESS CLAMP, HARDENING OF RUBBER
Check visually and by touching with hand that there is no loose
clamp mounting bolts and no hardening of the rubber for the
bucket cylinder stroke sensor wiring harness.
Replacement is required if any trouble is found. Ask your Ko-
matsu distributor for that work.
METHOD OF CHECKING AND CLEANING CYLINDER STROKE SENSOR CASE
BOLT
WARNING
If compressed air, high-pressure water, or steam hits your body directly or dirt is scattered by the com-
pressed
air, high-pressure water, or steam, there is a danger of personal injury. Wear protective equip-
ment such as protective eyeglasses and dust mask.
Check if the dirt and dust are accumulated in the hexagonal
hole of bolt for cylinder stroke sensor case. If the dirt and dust
are accumulated, clean it.
NOTICE
If the dirt and dust accumulated in the hexagonal hole of
bolt for sensor case are left without cleaning, the dirt and
dust stick and bolt cannot be removed.
MAINTENANCE MAINTENANCE PROCEDURE
4-3
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