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Maintenance Section
Illustration 219 g00993544
6. If the machine is equipped with a cab heater, turn
the heater control that is located inside the cab to
the HOT position. Loosen hose clamp (6). Remove
hose (7). Allow the coolant to drain into a suitable
container.
7. Flush the cooling system with clean water until the
draining water is transparent.
8. Close drain valve (2).
9. Reinstall coolant drain plug (3) in the engine block
above the starter. Tighten the plug.
10. 10.Reinstall hoses (4) and (7). Tighten clamps (5)
and (6).
NOTICE
Add the coolant solution at a maximum rate of five
liters per minute. This will reduce the chance of trapping
air inside the engine block. A large amount of trapped
air can cause localized heating to occur upon start-up.
Localized heating may result in engine damage, which
may lead to failure of the engine.
11. Add the coolant into the coolant tank. Refer to
Operation and Maintenance Manual, "Capacities
(Refill)"
12. Start the engine. Operate the engine without the
pressure cap for the coolant tank until the coolant
temperature regulator opens and the coolant level
stabilizes.
13. Maintain the coolant level up to the FULL mark on
the coolant tank.
14. Inspect the gasket of the pressure cap. If the
gasket is damaged, replace the cap.
15. Install the pressure cap on the coolant tank.
16. Stop the engine.
Cooling System Coolant Level
- Check
Personal injury can result from hot coolant, steam and
alkali.
At operating temperature, engine coolant is hot and
under pressure. The radiator and all lines to heaters
or the engine contain hot coolant or steam. Any
contact can cause severe burns.
Remove filler cap slowly to relieve pressure only when
engine is stopped and radiator cap is cool enough to
touch with your bare hand.
Do not attempt to tighten hose connections when the
coolant is hot, the hose can come off causing burns.
Park the machine on level ground. Fully retract the
boom and fully lower the boom. Move the transmission
control to the NEUTRAL position and ensure that the
parking brake is engaged. Shut off the engine.
Illustration 220 g01057534
The coolant tank for the cooling system is located in the
engine compartment.
Check the coolant level while the engine is cold. The
coolant level should be maintained to the "FULL" line on
the coolant tank.