2.
Loosen radiator cap (1) slowly. After
checking that the pressure is completely
released, push the cap down, loosen it,
and then remove it.
3.
Remove the under cover under the drain
plug, and then remove drain plug (2) to
drain the coolant into a container.
4.
After draining the coolant, attach drain
plug (2) and pour clean soft water and
cleaning solution (radiator cleaner) from
the coolant inlet.
5.
Start the engine at a speed slightly higher
than the low idle (adjusted with engine
throttle lever (5)), raise the water
temperature to more than 80 degrees C
(176 degrees F) within the white range of
the engine coolant temperature gauge, and
run the engine for about 10 minutes.
6.
Stop the engine, remove the drain plug,
and drain the water into a container. Pour
clean soft water into radiator (3) with the
drain plug removed to clean the radiator
until the clear water is discharged.
7.
Attach the drain plug, pour clean soft
water mixed with "Long Life Coolant" (50%
or more) to the neck of radiator cap (1),
run the engine for a while, and bleed the
air of the cooling system thoroughly.
8.
After the engine is stopped and the
coolant cools down, check the coolant
level (the coolant level of reserve tank (4)
should be between FULL and LOW). See
"Checking Coolant Level for Shortage and
Making Up" in Chapter 3.
9.
Check for coolant leakage, attach the under
cover, and close the engine hood to
complete the procedure.
４
［
4. INSPECTION AND MAINTENANCE
］
4-63
Copyright © 2015 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2PX00051ZE03] [0731CsCshWbYs]
