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 - Recycle
Battery - Replace
Circuit Breakers - Reset
Engine Air Cleaner Element - Replace
Generator - Dry
Generator Bearing - Lubricate
Generator Set - Test
Generator Set Alignment - Check
Generator Winding - Test
Ignition System Timing - Check/Adjust
Stator Winding Temperature - Test
Varistor - Check
Air Tank Moisture and Sediment - Drain
Control Panel - Inspect/Test
Coolant Level - Check
Electrical Connections - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Air Precleaner - Check/Clean
Engine Oil Level - Check
Fuel Filter Differential Pressure - Check
Generator - Inspect
Generator Bearing Temperature - Test/Record
Generator Load - Check
Power Factor - Check
Voltage and Frequency - Check
Walk-Around Inspection
Battery Charger - Check
Generator Lead - Check
Jacket Water Heater - Check
Space Heater - Test
Standby Generator Set Maintenance Recommendations
Engine Oil Sample - Obtain
Battery Electrolyte Level - Check
Belts - Inspect/Adjust/Replace
Coolant Sample (Level 1) - Obtain
Crankshaft Vibration Damper - Inspect
Engine - Clean
Engine Crankcase Breather - Clean
Engine Oil and Filter - Change
Engine Valve Rotators - Inspect
Fan Drive Bearing - Lubricate
Hoses and Clamps - Inspect/Replace
Spark Plugs - Inspect/Adjust/Replace
Cylinder Pressure - Test/Record
Engine Crankcase Breather - Clean
Engine Protective Devices - Check
Engine Valve Lash - Check
Exhaust Piping - Check
Valve Stem Projection - Measure/Record
Generator Winding Insulation - Test
Varistor - Check
Alternator - Inspect
Coolant Sample (Level 2) - Obtain
Driven Equipment - Check
Engine Performance - Test
Generator Set Vibration - Test/Record
Inlet Air System - Check
Starting Motor - Inspect
Stator Lead - Check
Water Pump - Inspect
Exhaust Bypass - Inspect
Gas Pressure Regulator - Test
Ignition System Transformer Resistance - Test
Rotating Rectifier - Check
Turbocharger - Inspect
Valve Stem Projection - Measure/Record
Overhaul Considerations
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, WHICHEVER 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
Air Inlet Filter - Inspect/Clean/TestBattery - Recycle
Battery - Replace
Circuit Breakers - Reset
Engine Air Cleaner Element - Replace
Generator - Dry
Generator Bearing - Lubricate
Generator Set - Test
Generator Set Alignment - Check
Generator Winding - Test
Ignition System Timing - Check/Adjust
Stator Winding Temperature - Test
Varistor - Check
Daily
Air Prelube Pump Lubricator Oil Level - CheckAir Tank Moisture and Sediment - Drain
Control Panel - Inspect/Test
Coolant Level - Check
Electrical Connections - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Air Precleaner - Check/Clean
Engine Oil Level - Check
Fuel Filter Differential Pressure - Check
Generator - Inspect
Generator Bearing Temperature - Test/Record
Generator Load - Check
Power Factor - Check
Voltage and Frequency - Check
Walk-Around Inspection
Every Week
Automatic Start/Stop - InspectBattery Charger - Check
Generator Lead - Check
Jacket Water Heater - Check
Space Heater - Test
Standby Generator Set Maintenance Recommendations
Every 250 Service Hours
Cooling System Supplemental Coolant Additive (SCA) - Test/AddEngine Oil Sample - Obtain
Every 750 Service Hours
Aftercooler Core - Clean/TestBattery Electrolyte Level - Check
Belts - Inspect/Adjust/Replace
Coolant Sample (Level 1) - Obtain
Crankshaft Vibration Damper - Inspect
Engine - Clean
Engine Crankcase Breather - Clean
Engine Oil and Filter - Change
Engine Valve Rotators - Inspect
Fan Drive Bearing - Lubricate
Hoses and Clamps - Inspect/Replace
Spark Plugs - Inspect/Adjust/Replace
Initial 750 Service Hours
Valve Stem Projection - Measure/RecordEvery 750 Service Hours Before Initial 3000 Hours
Carburetor Air/Fuel Ratio - Check/AdjustEvery 1500 Service Hours
Crankcase Blowby - Test/RecordCylinder Pressure - Test/Record
Engine Crankcase Breather - Clean
Engine Protective Devices - Check
Engine Valve Lash - Check
Exhaust Piping - Check
Valve Stem Projection - Measure/Record
Every 1500 Service Hours After Initial 3000 Hours
Carburetor Air/Fuel Ratio - Check/AdjustEvery Year
Engine Mounts - InspectGenerator Winding Insulation - Test
Varistor - Check
Every 3000 Service Hours
Air Prelube Pump Lubricator Bowl - CleanAlternator - Inspect
Coolant Sample (Level 2) - Obtain
Driven Equipment - Check
Engine Performance - Test
Generator Set Vibration - Test/Record
Inlet Air System - Check
Starting Motor - Inspect
Stator Lead - Check
Water Pump - Inspect
Every 8000 Service Hours
Catalytic Converter Substrate - ReplaceExhaust Bypass - Inspect
Gas Pressure Regulator - Test
Ignition System Transformer Resistance - Test
Rotating Rectifier - Check
Turbocharger - Inspect
Between 8000 and 12 000 Service Hours
Overhaul (Top End)Valve Stem Projection - Measure/Record
Between 12 000 and 22 000 Service Hours
Valve Stem Projection - Measure/RecordBetween 18 000 and 24 000 Service Hours
Overhaul (Major)Overhaul Considerations
Commissioning
Valve Stem Projection - Measure/RecordCaterpillar Information System:
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CG137-08 and CG137-12 Engines Refill Capacities
XQ400 Power Module Before Starting Engine
CG137-12 Generator Set Sensors and Electrical Components
XQ400 Power Module Electronic Modular Control Panel 4 (EMCP 4) - EMCP 4.4
XQ400 Power Module Alarms and Shutoffs
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C7 and C9 Industrial Engines Cylinder Is Noisy
C7 and C9 Industrial Engines Oil Consumption Is Excessive
XQ400 Power Module Product Description
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