24. SERVICE PROCEDURE 24.6.2 CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS AND CONDENSER FINS (ONLY FOR MACHINES EQUIPPED WITH AIR- CONDITIONER) 1. Open the engine hood and rear door on the left side of the machine. Loosen bolts a and remove the radiator front cover. 2. Blow off mud, dust or leaves clogging the radiator fins and oil 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 the air conditioner. The condenser is located between the fuel tank and radiator. 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. NOTICE To prevent damage to the fins, apply compressed air from an appropriate distance. Damaged fins may cause water leakage or overheating. In a dusty site, check the fins daily, irrespective of the maintenance interval. 24.6.3 REPLACE HYDRAULIC TANK BREATHER 1. Remove the cover over the hydraulic tank and remove the cap of oil filter F . 2. Replace element a inside the cap with a new one. PC450-ENG 3-64 WARNING If compressed air, steam, or water hit your body directly, there is danger of injury. Always wear protective glasses, mask, and safety shoes.
ELEMENT WARNING Wait for the oil to cool down before replacing the breather element. When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it carefully.