Maintenance Interval Schedule
Ensure that all safety information, warnings and instructions are read and understood before any operation or any maintenance procedures are performed.
Battery or Battery Cable - Disconnect
Fuel System - Prime
Generator - Dry
Generator Set - Test
Maintenance Recommendations
Overhaul (Major)
Overhaul (Top End)
Overhaul Considerations
Rotating Rectifier - Test
Varistor - Test
Winding - Test
Zinc Rods - Inspect/Replace
Air Tank Moisture and Sediment - Drain
Annunciator Panel - Inspect
Battery Charger - Check
Bearing Temperature - Measure/Record
Cooling System Coolant Level - Check
Electrical Connections - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Air Precleaner - Clean
Engine Oil Level - Check
Fuel Tank Water and Sediment - Drain
Generator - Inspect
Generator Load - Check
Jacket Water Heater - Check
Power Factor - Check
Space Heater - Check
Standby Generator Set Maintenance Recommendations
Stator Winding Temperature - Measure/Record
Voltage and Frequency - Check
Walk-Around Inspection
Bearing (Ball) - Lubricate
Bearing (Spherical Roller) - Lubricate
Belts - Inspect/Adjust/Replace
Cooling System Coolant Sample (Level 2) - Obtain
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Crankshaft Vibration Damper - Inspect
Engine - Clean
Engine Air Cleaner Element (Dual Element) - Clean/Replace
Engine Air Cleaner Element (Single Element) - Clean/Replace
Engine Crankcase Breather - Clean
Engine Mounts - Check
Engine Oil Sample - Obtain
Engine Oil and Filter - Change
Engine Protective Devices - Check
Engine Valve Lash - Inspect/Adjust
Fan Drive Bearing - Lubricate
Fuel Injector - Inspect/Adjust
Fuel System Primary Filter - Clean/Inspect/Replace
Fuel System Secondary Filter - Replace
Hoses and Clamps - Inspect/Replace
Insulation - Test
Prelube Pump - Inspect
Radiator - Clean
Rotating Rectifier - Check
Speed Sensor - Clean/Inspect
Starting Motor - Inspect
Stator Lead - Check
Water Pump - Inspect
Cooling System Coolant (DEAC) - Change
Cooling System Coolant Extender (ELC) - Add
Cooling System Water Temperature Regulator - Replace
Turbocharger - Inspect
The user is responsible for the performance of maintenance, including all adjustments, the use of proper lubricants, fluids, filters, and the replacement of components due to normal wear and aging. Failure to adhere to proper maintenance intervals and procedures may result in diminished performance of the product and/or accelerated wear of components.
Use mileage, fuel consumption, service hours, or calendar time, WHICH EVER OCCURS FIRST, in order to determine the maintenance intervals. Products that operate in severe operating conditions may require more frequent maintenance.
Note: Before each consecutive interval is performed, all maintenance from the previous interval must be performed.
When Required
Battery - RecycleBattery or Battery Cable - Disconnect
Fuel System - Prime
Generator - Dry
Generator Set - Test
Maintenance Recommendations
Overhaul (Major)
Overhaul (Top End)
Overhaul Considerations
Rotating Rectifier - Test
Varistor - Test
Winding - Test
Zinc Rods - Inspect/Replace
Every Week
Air Inlet Filter - CheckAir Tank Moisture and Sediment - Drain
Annunciator Panel - Inspect
Battery Charger - Check
Bearing Temperature - Measure/Record
Cooling System Coolant Level - Check
Electrical Connections - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Air Precleaner - Clean
Engine Oil Level - Check
Fuel Tank Water and Sediment - Drain
Generator - Inspect
Generator Load - Check
Jacket Water Heater - Check
Power Factor - Check
Space Heater - Check
Standby Generator Set Maintenance Recommendations
Stator Winding Temperature - Measure/Record
Voltage and Frequency - Check
Walk-Around Inspection
Every 500 Service Hours
Cooling System Coolant Sample (Level 1) - ObtainEvery Year
Alternator - InspectBearing (Ball) - Lubricate
Bearing (Spherical Roller) - Lubricate
Belts - Inspect/Adjust/Replace
Cooling System Coolant Sample (Level 2) - Obtain
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Crankshaft Vibration Damper - Inspect
Engine - Clean
Engine Air Cleaner Element (Dual Element) - Clean/Replace
Engine Air Cleaner Element (Single Element) - Clean/Replace
Engine Crankcase Breather - Clean
Engine Mounts - Check
Engine Oil Sample - Obtain
Engine Oil and Filter - Change
Engine Protective Devices - Check
Engine Valve Lash - Inspect/Adjust
Fan Drive Bearing - Lubricate
Fuel Injector - Inspect/Adjust
Fuel System Primary Filter - Clean/Inspect/Replace
Fuel System Secondary Filter - Replace
Hoses and Clamps - Inspect/Replace
Insulation - Test
Prelube Pump - Inspect
Radiator - Clean
Rotating Rectifier - Check
Speed Sensor - Clean/Inspect
Starting Motor - Inspect
Stator Lead - Check
Water Pump - Inspect
Every 3 Years
Batteries - ReplaceCooling System Coolant (DEAC) - Change
Cooling System Coolant Extender (ELC) - Add
Cooling System Water Temperature Regulator - Replace
Turbocharger - Inspect
Every 6 Years
Cooling System Coolant (ELC) - ChangeOverhaul
Bearing - InspectCaterpillar Information System:
345D and 349D Excavators C13 Engine Supplement Fuel Priming Pump and Primary Filter (Water Separator) - Assemble
345D and 349D Excavators C13 Engine Supplement Fuel Priming Pump and Primary Filter (Water Separator) - Disassemble
C6.6 Marine Generator Set Engine Oil Filter Base - Remove and Install - MCS Engine Oil Filter Base
C6.6 Marine Generator Set Fuel Filter Base - Remove and Install - MCS Secondary Fuel Filter
G3304 and G3306 Engines Exhaust Manifold
C6.6 Marine Generator Set Fuel Filter Base - Remove and Install - MCS Primary Fuel Filter
3500 Generator Sets Configuration Parameters
TH31-C9I, TH31-C9P, TH31-C9T, TH35-C11I, TH35-C13I, TH35-C13T, TH35-C15I and TH35-C15T Petroleum Power Train Packages and TH31-E61 and TH35-E81 Petroleum Transmissions Power Train Electronic Control System Electronic Control Unit - Replace
C4.4 Generator Set Engines CID 0247 FMI 12
C4.4 Generator Set Engines CID 0247 FMI 09
C175-16 Marine Engines Maintenance Recommendations
C4.4 Generator Set Engines Can Not Reach Top Engine RPM
2008/10/06 New Improved Fuel Injectors Are Now Used {1251, 1290}
Plugging of the In-line Fuel Filters for the Aftertreatment Regeneration Device (ARD){108M, 1261, 3206} Plugging of the In-line Fuel Filters for the Aftertreatment Regeneration Device (ARD){108M, 1261, 3206}
345D and 349D Excavators C13 Engine Supplement Fan - Remove
795F AC and 795F AC XQ Off-Highway Trucks Ether Starting Aid Cylinder - Replace
2008/09/29 A New Type of Main Bearing is Available {1202, 1203}
2008/10/01 A New Type of Main Bearing is Available {1202, 1203}
Location Updates Are Not Being Reported From The Product Link PL321{7606} Location Updates Are Not Being Reported From The Product Link PL321{7606}
C6.6 Marine Generator Set Heater Mounting Group - 240 Volt
C6.6 Marine Generator Set Heater Mounting Group - 110 Volt
C6.6 Marine Generator Set Control System - Remove and Install - M.C.S Panel
C6.6 Marine Generator Set Fuel Injection Lines
345D, 349D and 349D2 Excavators and 345D MHPU and 349D MHPU Mobile Hydraulic Power Units Machine Systems Bucket Cylinder - Remove and Install