MAINTENANCE PROCEDURE MAINTENANCE
4-58
Radiator Core and Fins - Check/Clean 4
WARNING
If compressed air, high-pressure water, or steam hit your body directly, or they cause dirt or dust to be
blown up, there is a hazard of serious injury. Always use safety glasses, dust mask, or other protective
equipment.
NOTICE
When use the compressed air, keep a distance from air nozzle, to prevents damage to the fins.
To prevent damage to the fins, apply compressed air from and appropriate distance. Damaged fins may
cause water leakage or overheating. In a dusty site, check the fins daily, irrespective of the maintenance
interval.
1. Open the engine hood.
2. Loosen screw (3) and pull up net (2).
3. Clean net (2). (it is to be installed again, as instructed in the
step 8.)
4. Remove 3 bolts (4) on the engine side, then remove cover
(5).
5. Check the front face and rear face of oil cooler fins (6),
radiator fins (7), aftercooler fins (8), and condenser fins (9).
If any mud, dirt, or leaves are stuck to the fins, blow them
off with compressed air.
It is also possible to use steam or water instead of com-
pressed air.
6. Check the rubber hose. Replace with a new one, if the hose is found to have cracks or to be hardened by
aging.
Further, check the hose cramps for looseness.
7. Remove undercover (1), then clean out the mud, dirt, or
leaves that were blown off in the cleaning operation.
8. Push in cleaned net (2) back to the original place and
secure it with screw (3).
9. Install cover (5) with 3 bolts (4).
10. Install undercover (1).
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