MAINTENANCE PROCEDURE MAINTENANCE
4-44
CHECK SEALS AROUND ENGINE COOLING 4
Check from inside the engine room that there is no gap caused by deformation or peeling of the sponge sealing
material around the engine cooling.
Locations to check sealing material
(A) Seal around radiator
(B) Seal of aftercooler hose
(C) Seal of radiator upper hose
(D) Seal of oil cooler hose
(E) Seal of oil cooler upper hose
If there is a change to high water temperature when operating the engine over several days when there is
no change in the ambient temperature, a possible reason is peeling of the sealing material around the
engine cooling or creation of a gap caused by deformation. If nothing is done to correct this problem,
there will be deterioration in the heat balance and increase in noise. Take action as soon as possible.
When doing this, please contact your Komatsu distributor.
F: Area around radiator at front of engine R: Area around oil cooler at rear of engine
(right side of machine) (left side of machine)
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