23.
MAINTENANCE SCHEDULE CHART 23.1 MAINTENANCE SCHEDULE CHART SERVICE ITEM PAGE INITIAL 250 HOURS SERVICE (only after the first 250 hours) Replace fuel filter cartridge 3-23 Change oil in engine oil pan, replace engine oil filter catridge and bypass filter 3-23 cartridge (only for machines equipped with bypass filter) Check engine valve clearance, adjust 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 3-30 Check and adjust track tension 3-31 Check glow plug 3-33 Replace bucket teeth (vertical pin type) 3-34 Replace bucket teeth (horizontal pin type) 3-37 Adjust bucket clearance 3-38 Check window washer fluid, add fluid 3-39 Check, maintain air conditioner (only machines equipped with air conditioner) 3-40 Replace additional breaker filter element (option) 3-41 CHECK BEFORE STARTING Check coolant level, add water 3-42 Check oil level in engine oil pan, add oil 3-42 Check fuel level, add fuel 3-43 Check oil level in hydraulic tank, add oil 3-44 Check air cleaner for clogging 3-44 Check electric wirings 3-45 Check function of horn 3-45 Check for water and sediment in water separator, drain water (option) 3-45 EVERY 50 HOURS SERVICE Lubricating 3-46 Boom cylinder foot pin (2 points) 3-46 Boom foot pin (2 points) 3-47 ‡ Arm-Link coupling pin (1 point) 3-47 3-20