Komatsu PC490-11, Installation And Instruction Manual

Page: 365 / 492

18. Close drain valves (5) and (6).
19. Install covers (3) and (4).
20. Add Non-Amine Engine Coolant through the coolant filler
port up to the mouth of the port.
For details of the coolant density, see “Coolant density ta-
ble”.
21. Run the engine at low idle for 5 minutes to remove the air from the coolant, then run at high idle for a further
5 minutes.
Keep radiator cap (2) removed during the above opera-
tions.
22. Stop the engine, wait for approximately 3 minutes, then
add Non-Amine Engine Coolant up to the bottom of the
water filler port, and tighten the radiator cap (2).
23. Close the engine hood, tighten bolts (A) (2 pieces), and in-
stall cover (1).
MAINTENANCE MAINTENANCE PROCEDURE
4-25