25. Procedures for Maintenance
3-37
How to clean the inside of the cooling water system
• Container for cooling water
Capacity : 8 Qts. (7 L) or more
• Hose for supplying the water
1) Swing the upper structure so that the drain plug is posi-
tioned in the middle of the right and left tracks.
2) Remove the bottom cover and put the container for
cooling water under the drain plug.
3) Open the engine hood B, slowly remove the radiator
cap, pour in the washing agent and mount the cap.
IMPORTANT
Washing methods vary depending on the manufactur-
er of the washing agent.
Follow the instructions of the manufacturer.
4) Start the engine until the water temperature rises to 176
°F (80°C) or more and idle the engine for 10 to 15 min-
utes. Then stop the engine.
5) After the engine has cooled down, slowly loosen the
drain plug to drain the cooling water and remove the ra-
diator cap.
When the drain plug is removed, the cooling water in
the radiator is completely drained.
6) After the water is completely drained, reinstall the drain
plug and pour tap water through the water supply port
of the radiator.
7) When the system is filled with water, remove the drain
plug, idle the engine and wash the cooling water system
with running water until clean water comes out.
While washing with running water, always keep the wa-
ter system filled with water by adjusting the amount of
water to be drained out and poured in.
Hold the water supply hose securely during washing
with running water so that the hose should not come off
from the water supply port of the radiator.
Cover
015592-00E
Bolt
Bolt
Cover
(P)
Viewed from under the machine body
015593-00E
Engine hood B
Radiator cap
Cover
015594-00E
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