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24. SERVICE PROCEDURE
•
Prepare a container to catch drained coolant: Min 24.4 l (6.45 US
gal, 5.37 UK gal) capacity.
1.
Turn radiator cap
2.
Pushing radiator cap
3.
Remove the bolted cover beneath the radiator, then set a container
to catch the coolant under drain valve
drain valve
at the bottom of the radiator to drain the water. Re-
move drain plug
4.
After draining the water, close drain valve
with city water.
5.
Open drain valve
and flush water through the system for 10 minutes.
When doing this, adjust the speed of filling and draining the water so
that the radiator is always full.
While flushing water through the system, watch carefully that the
water inlet hose does not come out of the radiator water filler.
6.
After flushing, stop the engine, open drain valve
then close it again after all the water has drained out.
7.
After draining the water, clean with a flushing agent. We recommend
use of a Komatsu genuine cleaning agent. For details of the cleaning
method, see the instructions given with the cleaning agent.
8.
After cleaning, open drain valve
cooling water, then close them and fill slowly with clean water.
9.
When the water comes up to near the water filler port, open drain
valve
and drain plug
to run water through the system until clean colorless water comes
out.
When doing this, adjust the speed of filling and draining the water so
that the radiator is always full.
3-34
slowly to release the internal pressure.
, turn it slowly to remove it.
in the cylinder block when draining the water.
and drain plug
run the engine at low idling,
and drain plug
, run the engine at low idling, and continue
and drain plug
. Open
and drain plug
and fill
and drain plug
to drain all the
,
BP000300
BP000400
BP000500
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