Komatsu PC22MR-3 Operation & Maintenance Manual page 272

Hydraulic excavator
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MAINTENANCE PROCEDURES
5. Shift the safety lever (1) to the "locked" position (L).
6. Open the engine hood and the radiator cover (1). For
details, see paragraph "RADIATOR COVER (3-33)"
7. Loosen the screws (2), remove the plate (3) and slowly
loosen the filler cap (F) to release the residual pressure
from the tank.
8. Remove the drain plug (P) and let the oil flow out,
gathering it into a container with suitable capacity.
9. Tilt the cab floor (see "TILTING THE CAB FLOOR (3-35)").
10. Loosen the clamps (4), remove the suction pipe (5) and let
the oil that is still in the tank flow out.
11. Remove the screws (6), remove the flange (7) and clean
the air intake filter (8).
NOTICE
Carefully check the filtering element grid and if it is not in
perfect conditions, change it.
4-64
WEAM014500
MAINTENANCE
RKA32810

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