Table of Contents
Advertisement
MAINTENANCE PROCEDURE
CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTERCOOLER FINS, FUEL
COOLER FINS, AND AIR CONDITIONER CONDENSER FINS (only machines equipped
with air conditioner)
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 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 noz-
zle at a distance of at least 300 mm.
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 the cover (1).
2. Open duct (2) at the machine's rear right side.
Duct (2) opens when ten bolts (3) are removed.
3. Use compressed to blow off mud, dust, or leaves clogging
the radiator fins, oil cooler fins, fuel cooler fins (2) and after
cooler fins (3). At the same time, clean the net in front of
the oil cooler. On machines equipped with an air condi-
tioner, clean the condenser fins (4) also.
Steam or water can be used in place of compressed air.
Steam or water can be used instead of compressed air, or
the fan can be rotated in reverse to carry out cleaning. For
details of the method for rotating the fan in reverse, see
"MONITORING SYSTEM (3-5)"
4. 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.
Aftercooler hose clamp tightening torque:
9.81 ± 0.49 N·m (1.0 ± 0.05 kgf·m)
4-52
WARNING
MAINTENANCE
4
Advertisement
Table of Contents
