Every 1000 Hours Maintenance; Replace Hydraulic Oil Filter Element - Komatsu GALEO PC40MR-2 Operation & Maintenance Manual

MAINTENANCE PROCEDURE

EVERY 1000 HOURS MAINTENANCE

Carry out the maintenance for EVERY 500 HOURS SERVICE at the same time.

REPLACE HYDRAULIC OIL FILTER ELEMENT

The parts and oil are at high temperature after the engine is stopped, and may cause burns. Wait for the temperature to go down
before starting the work.
When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.
NOTICE
If the machine is equipped with a hydraulic breaker, the hydraulic oil will deteriorate much faster than during normal bucket
operations. For details, see "MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER (PAGE 4-17)" when carrying out
maintenance.
1. Open dust cover (1) fully until it is secured in position.
(For details of the method of opening and closing the cover with
the lock, see Section "In Case of Engine Rear Cover and Dirt
Cover (PAGE 3-28)")
2. Loosen bolts (2), then remove plate (3) to the outside.
3. Remove the cap from oil filler (F), and release the internal
pressure.
4. Remove bolts (4), then remove cover (5). When this is done,
the cover may fly off under the force of spring (6), so keep the
cover pushed down when removing the bolts.
5. After removing spring (6) and valve (7), take out element (8).
6. Clean the rempved parts in diesel oil.
7. Install the new element where old element (8) was installed.
Inspect the O-ring set between the hydraulic tank and cover (5). If there are any scratches, replace the O-ring.
8. Set valve (7) and spring (6) on top of the element.
9. Set cover (5) in position, hold it down by hand, and tighten cover mounting bolts (4) to install cover (5).
10. Extend the boom, arm, and bucket cylinder fully as shown in
the diagram on the right, remove the oil filler cap, then install
the cap and pressurize the inside of the tank.
NOTICE
Be sure to pressurize the hydraulic tank. If it is not pressurized, the pump
will suck in air, and this will adversely affect the equipment.
11. Close cover (1) at right side of the machine.
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WARNING
MAINTENANCE