105419-2520 ZEXEL 9 420 611 640 BOSCH GOVERNOR 9420611640 1054192520

USE FUEL CONSUMPTION, SERVICE HOURS OR TIME INTERVAL, WHICHEVER COMES FIRST. Performance of all lubrication and maintenance items in the Maintenance Schedule is the owners' responsibility.Daily
Walk-Around Inspection - Inspect for leaks and loose connections Engine Crankcase - Check oil level Cooling System - Check coolant level Air Cleaner Indicator - Test Air Starting Motor (If Equipped) - Check/fill oiler bowlEvery 11 845 L (3125 gal) of Fuel or 125 Hours*
Scheduled Oil Sampling (S O S) Analysis - Obtain sample Engine Oil & Filters - Change oil and oil filter(s) 1 Fuel System - Drain water/sediment Cooling System - Test Crankcase Breathers - Clean Engine Valve Lash (At First Oil Change Only) - Check/AdjustEvery 23 690 L (6250 gal) of Fuel or 250 Hours*
Batteries - Clean/Check electrolyte level Belts, Hoses and Clamps - Inspect/Replace if necessary Engine Air Cleaners - Replace Engine Speed Sensors - Inspect/clean magnetic pick-upEvery 94 750 L (25,000 gal) of Fuel or 1000 Hours*
Engine Protection Devices - Inspect for proper operation (Check at least twice per year) Engine Valve Lash - Check/Adjust Turbochargers - Inspect for proper operation Engine Mounts and Crankshaft Vibration Damper - Inspect/checkEvery 213 190 L (56,250 gal) of Fuel or 2250 Hours or Every Year*
Connecting Rod Bearings - Replace 2Every 284 250 L (75,000 gal) of Fuel or 3000 Hours or Two Years*
Cooling System - Clean/Flush/replace thermostats and gasketsOverhaul Every 511 650 L (135,000 gal) of Fuel or 5400 Hours*
To minimize downtime and provide you with the lowest cost and highest value, Caterpillar recommends that the engine be overhauled before failure by scheduling an overhaul with your Caterpillar dealer. Refer to the Overhaul section in this manual on page 85. Top End Overhaul After Failure Overhaul Starting Motor - Inspect for proper operation Alternator - Inspect for proper operation Engine Speed Sensors - Inspect/clean/test*First Perform Previous Service Hour Items1For ratings less than 630 hp and a 70 percent load factor approximately one half of the operating time, the oil change interval may be extended to every 250 hours.2For ratings less than 630 hp and a 70 percent load factor approximately one half of the operating time, replacing the connecting rod bearings may be extended to every 4500 hours. Caterpillar suggests that fuel consumption be used as the preferred method of determining maintenance intervals. Fuel consumption/hours will vary depending on the proper application of your engine rating and adherence to recommended maintenance procedures.