24. SERVICE PROCEDURE 24.7.4 CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTER COOLER FINS, CONDENSER FINS (ONLY FOR MACHINES EQUIPPED WITH AIR CONDITIONER) ¤ WARNING If compressed air, steam, or water hit your body directly, there is danger of injury. Always wear protective glasses, mask, and safety shoes. AM091730 1. Open the engine hood and rear door on the left side of the machine. 2. Blow off mud, dust or leaves clogging the radiator fins, oil cooler fins and after cooler fins using compressed air. At the same time, clean the net in front of the oil cooler. Clean the condenser fins on machines equipped with air conditioner. Steam or water may be used instead of compressed air. 3.
Check the rubber hose. Replace with a new one if the hose is found to have cracks or to be hardened by ageing. Further, check hose clamps for looseness. After cooler hose clamp tightening torque: 0.9 ± 0.05 kgm (6.5 ± 0.36 lbft) NOTICE When use the compressed air, keep a distance from air nozzle, to prevents damage to the fins. Especially for after cooler, blow the air from 300 mm or more, and across the 45°. 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. 3-61