Clean Radiator/Oil Cooler Core - Hitachi Zaxis 33U-5A Operator's Manual

Clean Radiator/Oil Cooler Core

Outside --- every 500 hours
Inside --- when coolant is changed
d
CAUTION: Use reduced compressed air pressure
(Less than 0.2 MPa, 2 kgf/cm
Wear personal protection equipment including eye
protection.
d
WARNING:
 Entanglement in moving parts can cause serious
injury.
 Before servicing, stop the engine and the fan to
prevent any accident.
 Never attempt to start the engine when the cover is
open.
 In case tools or parts are dropped into the radiator/
oil cooler core, remove them before starting the
engine.
IMPORTANT:
 Cover the air cleaner inlet opening to prevent the
entry of dust and water while cleaning the radiator.
 If air with pressure of higher than 0.2 MPa (2 kgf/cm
or tap water with high delivery pressure is used for
cleaning, damage to the radiator/oil cooler/ fins may
result.
 Check the core periodically and replace it if
necessary when the machine is operated in dusty
areas.
The radiator and the oil cooler are arranged in series.
If dirt or dust is accumulated on them, cooling system
performance decreases. Clean the radiator/oil cooler cores
with compressed air pressure (lower than 0.2 MPa (2 kgf/cm
or tap water. It will prevent a reduction in cooling system
performance.
MAINTENANCE
2 ) for cleaning purposes.
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2
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