23.
MAINTENANCE SCHEDULE CHART SERVICE ITEM PAGE Lubricating Boom foot pin (2 points) 3-51 Boom cylinder rod pin (2 points) 3-51 Arm cylinder foot pin (1 point) 3-51 Boom-arm coupling pin (1 point) 3-51 Arm cylinder rod end (1 point) 3-51 Bucket cylinder foot pin (1 point) 3-51 Boom foot pin (2 points) 3-51 Arm-link coupling pin (1 point) 3-51 Arm-bucket coupling pin (1 point) 3-51 Link coupling pin (2 point) 3-51 Bucket cylinder rod end (1 point) 3-51 Bucket-link coupling pin (2 points) 3-51 Check oil level in swing machinery case, add oil 3-52 Drain water and sediment from fuel tank 3-53 Clean fresh air intake heater filter 3-53 EVERY 250 HOURS SERVICE Check oil level in final drive case, add oil 3-54 Check level of battery electrolyte 3-55 Replace hydraulic filter element 3-56 Lubricate swing circle (3 points) 3-57 Check air conditioner compressor belt tension, adjust 3-60 Change fuel filter cartdridges 3-60 Change oil in engine oil pan, replace engine oil filter cartridge 3-61 Replace corrosion resistor cartridge + Fuel Filter (check SCA level) 3-62 EVERY 500 HOURS SERVICE Check swing pinion grease level, add grease 3-63 Clean and inspect radiator fins, oil cooler fins and condensor fins (only for machines equipped with air-conditioner) 3-64 Replace hydraulic tank breather element 3-64 PC450-ENG 3-21