Cleaning The Strainer Of The Brake Filter - Komatsu WA320-5H Operation & Maintenance Manual

MAINTENANCE

CLEANING THE STRAINER OF THE BRAKE FILTER

q After the motor is switched off, the parts and oil is very hot and can cause serious burns. Let it cool
down before you start working.
q Press the brake pedal approx. 15 times to reduce the pressure in the brake accumulators.
1. Press the brake pedal approx. 15 times to reduce the pres-
sure in the brake accumulators.
2. Open the hydraulic tank slowly to reduce the inner pres-
sure.
3. On the left side of the rear frame, unscrew the cover that is
located under the cab.
4. Place a container under the brake filter.
5. Unscrew the hydraulic hose (1) and the flange (2).
6. Take the strainer (3) out of the housing (4) and clean it with
clean diesel fuel.
7. Insert the strainer (3) into the housing (4). Make sure that
the side with the O-ring faces forward.
8. Screw the flange (2) back on and tighten it.
9. Screw the hydraulic hose back on (1) and tighten it.
10. Wipe away any hydraulic oil that might have leaked out.
11. Start the motor and let it run until the brake accumulator is
full. Switch off the motor.
12. Check the level of the hydraulic oil. Refill if required.
13. Bleed the hydraulic system and close the hydraulic tank.
14. Screw the cover back on.
WARNING
SERVICE PROCEDURE
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