MAINTENANCE PROCEDURE MAINTENANCE
4-110
EVERY 5000 HOURS MAINTENANCE 4
Maintenance for every 250, 500 and 1000 hours service should be carried out at the same time.
CHANGE OIL IN HYDRAULIC TANK, CLEAN STRAINER 4
q Immediately after the engine is stopped, the oil and parts are at high temperature, and this will cause
burns. Wait for the temperature to go down before starting the operation.
q When removing the cap from the oil filler, oil may spurt out, so turn it slowly to release the internal
pressure, then remove it.
q When removing holder cover (1) of the strainer, the cover is under pressure from spring (2) and may
fly out, so loosen the 4 bolts gradually.
For details of the method of draining and adding hydraulic oil to machines equipped with a service center (option),
see “Method of Draining, Adding Hydraulic Oil (6-25)“.
q Oil refill capacity: 1300 liter
q Prepare a handle for socket wrench set
1. If the machine is not in the posture shown in the diagram
on the right, start the engine, run the engine at low speed,
lower the blade to the ground, retract the arm and bucket
cylinders, lower the boom and set the bucket teeth in con-
tact with the ground, then stop the engine.
2. Within 15 seconds after stopping the engine, turn the start-
ing switch to the ON position and operate all control levers
(work equipment, travel) and pedals (offset) fully in all
directions to release the internal pressure.
3. Set the lock lever to the LOCK position and stop the
engine.
4. Remove the cap from oil filler (F).
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