Komatsu PW118MR-11, Operation & Maintenance Manual

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3) Next, move the L.H. work equipment control lever slowly in the direction arm IN position (B). Operate
the lever to the end of its stroke and hold it in position for 30 seconds.
4) Move L.H. work equipment control lever slowly in the direction arm OUT position (A). Operate the lever
to the end of its stroke and hold it in position for 30 seconds.
Repeating the operations from step 1 to 4 moves the
pointer of the engine coolant temperature caution
lamp (4) upward. The pointer of the engine coolant
temperature gauge moves down temporarily around
the center of scale (A). Then, continue the operation
for approximately 10 minutes.
15. Stop the engine.
16. Open the tap (6) and discharge the liquid.
17. Having discharged the liquid, close the tap (6).
18. Fill with coolant through the coolant filler port of the radia-
tor until full.
For details of the coolant density, see “coolant density table”.
19. Run the engine at low idle for 5 minutes to remove the air from the coolant, then run it at high idle for further
5 minutes.
Keep the radiator cap (5) removed during the above operations.
20. Install covers (2) and (4).
21. Remove the cover (7).
22. Discharge the coolant from the tank (8).
23. Clean the inside of reservoir tank (8).
24. Add coolant up to the middle between FULL and LOW.
25. Stop the engine.
26. Approximately 3 minutes later, add coolant to near the
mouth of the water filler port.
27. Tighten the filter cap (5).
METHOD FOR REPLACING BUCKET TEETH
Replace the bucket teeth before the adapter starts to wear.
RKA61152
RKA65130
MAINTENANCE PROCEDURE MAINTENANCE
4-22
WENAM00130