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MAINTENANCE PROCEDURE
CLEAN,CHECK RADIATOR FINS,OIL COOLER FINS,FUEL COOLER FINS,AFTERCOOLER
FINS,CONDENSER FINS (machines equipped with air conditioner),PTO OIL COOLER
If compressed air, high-pressure water, or steam hits your body directly or dirt is sent flying by the compressed air, high-pressure
water, or steam, there is danger of personal injury. Always wear protective glasses, dust mask, and other protective equipment.
NOTICE
When using compressed air, use from a distance to prevent damage to the fins.
In particular, with the fuel cooler and aftercooler, blow with compressed air at an angle of 45° with the nozzle at a distance of at
least 300 mm (11.8 in).
Never blow the compressed air at right angles to the core. If the fins are damaged, it may cause coolant leakage or overheating.
On dusty jobsites, check the fins daily, irrespective of the maintenance interval.
1. Open rear ducts (1) and (2) at the right side of the machine.
For duct (1), remove 4 bolts (3); for duct (2), remove 8 bolts (4).
Then open the ducts.
2. Blow off mud, dust or leaves clogging the radiator fins (E), oil
cooler fins (D), fuel cooler fins (B), after cooler fins (C) and PTO
cooler (F) using compressed air. At the same time, clean the
net in front of the oil cooler. Clean the condenser fins (A) on
machines equipped with air conditioner.
Steam or water may be used instead of compressed air, but
maintain the proper distance from the fins.
Cleaning can also be carried out by rotating the fan in reverse.
The aftercooler fan is not equipped with a fan reverse rotation
function.
For details of rotating the fan in reverse, see "Fan Reverse
Rotation (PAGE 3-27)".
3. Check the rubber hose. Replace with a new one if the hose is
found to have cracks or to be hardened by aging.
Also, check hose clamps for looseness.
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WARNING
MAINTENANCE
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