23.
MAINTENANCE SCHEDULE CHART 23.1 MAINTENANCE SCHEDULE CHART SERVICE ITEM PAGE SERVICE PROCEDURE 3-23 WHEN REQUIRED Check, clean and replace air cleaner element 3-24 Clean inside of cooling system 3-26 Check and tighten track shoe bolts 3-32 Check and adjust track tension 3-33 Check electrical intake air heater 3-35 Replace bucket side cutters 3-36 Replace bucket teeth 3-36 Adjust bucket clearance 3-41 Check window washer fluid level, add fluid 3-42 Check and adjust air conditioner (Option) 3-43 Replace additional breaker filter element (option) 3-44 Check coolant level, add coolant 3-45 CHECK BEFORE STARTING Check oil level in engine oil pan, add oil 3-45 Check fuel level, add fuel 3-46 Check oil level in hydraulic tank, add oil 3-47 Check air cleaner for clogging 3-48 Check electric wirings 3-48 EVERY 50 HOURS SERVICE Lubricating Boom cylinder foot pin (2 points) 3-50 Boom foot pin (2 points) 3-50 Arm-Link coupling pin (1 point) 3-50 Arm-Bucket coupling pin (1 point) 3-50 Link coupling pin (2 points) 3-50 Bucket cylinder rod end (1 point) 3-50 Bucket-Link coupling pin (1 point) 3-50 EVERY 100 HOURS SERVICE Lubricating 3-51 • Boom cylinder foot pin (2 points) 3-51 PC450-ENG 3-20