Maintenance Interval Schedule
Note: All safety information, warnings, and instructions must be read and understood before you perform any operation or any maintenance procedure.
Battery Electrolyte Level - Check
Battery, Battery Cable or Battery Disconnect Switch - Replace
Bucket Cutting Edges - Inspect/Replace
Bucket Tips - Inspect/Replace
Bucket Wear Plates - Inspect/Replace
Circuit Breakers and Fuses - Reset/Replace
Engine Air Filter Primary Element - Clean/Replace
Engine Air Filter Secondary Element - Replace
Engine Air Filter Service Indicator - Inspect
Fuel System Priming Pump - Operate
Fuel Tank Water and Sediment - Drain
Oil Filter - Inspect
Radiator Core - Clean
Window Washer Reservoir - Fill
Window Wiper - Inspect/Replace
Window Wiper - Inspect/Replace
Cab Air Filter - Clean/Replace
Cooling System Level - Check
Engine Oil Level - Check
Fuel System Water Separator - Drain
Hydraulic System Oil Level - Check
Seat Belt - Inspect
Tire Inflation - Check
Walk-Around Inspection
Windows - Clean
Axle Oscillation Bearings - Lubricate
Steering Cylinder Bearings - Lubricate
Battery - Inspect
Braking System - Test
Cooling System Coolant Additive (DEAC) - Add
Differential and Final Drive Oil Level - Check
Drive Shaft Universal Joints - Lubricate
Hydrostatic Drive Oil Level - Check
V-Belts - Inspect/Adjust/Replace
Fuel System Primary Filter - Replace
Fuel System Water Separator Element - Replace
Fuel Tank Cap - Clean
Hydraulic System Oil Filter - Replace
Rollover Protective Structure (ROPS) - Inspect
Differential and Final Drive Oil - Change
Engine Crankcase Breather - Clean
Fuel Injection Timing - Check
Hydrostatic Drive Oil - Change
Cooling System Coolant Extender (ELC) - Add
Cooling System Water Temperature Regulator - Clean/Replace
Before each consecutive interval is performed, all of the maintenance requirements from the previous interval must also be performed.
The normal oil change interval is Every 500 Service Hours or Three Months. If the engine is operated under severe conditions or if the oil is not Caterpillar oil, change the oil after Every 250 Service Hours or after One Month. Severe conditions include the following factors: high temperatures, continuous high loads and extremely dusty conditions .
Refer to the results of the S·O·S oil analysis in order to determine if the oil change interval should be decreased to 250 hours. Consult your Caterpillar Dealer for detailed information regarding the optimum oil change interval.
When Required
Battery - RecycleBattery Electrolyte Level - Check
Battery, Battery Cable or Battery Disconnect Switch - Replace
Bucket Cutting Edges - Inspect/Replace
Bucket Tips - Inspect/Replace
Bucket Wear Plates - Inspect/Replace
Circuit Breakers and Fuses - Reset/Replace
Engine Air Filter Primary Element - Clean/Replace
Engine Air Filter Secondary Element - Replace
Engine Air Filter Service Indicator - Inspect
Fuel System Priming Pump - Operate
Fuel Tank Water and Sediment - Drain
Oil Filter - Inspect
Radiator Core - Clean
Window Washer Reservoir - Fill
Window Wiper - Inspect/Replace
Window Wiper - Inspect/Replace
Every 10 Service Hours or Daily
Backup Alarm - TestCab Air Filter - Clean/Replace
Cooling System Level - Check
Engine Oil Level - Check
Fuel System Water Separator - Drain
Hydraulic System Oil Level - Check
Seat Belt - Inspect
Tire Inflation - Check
Walk-Around Inspection
Windows - Clean
Every 50 Service Hours or Monthly
Attachment Arm and Cylinder Linkage - LubricateEvery 100 Service Hours or 2 Weeks
Articulation Bearings - LubricateAxle Oscillation Bearings - Lubricate
Steering Cylinder Bearings - Lubricate
Every 250 Service Hours or Monthly
Air Conditioner - TestBattery - Inspect
Braking System - Test
Cooling System Coolant Additive (DEAC) - Add
Differential and Final Drive Oil Level - Check
Drive Shaft Universal Joints - Lubricate
Hydrostatic Drive Oil Level - Check
V-Belts - Inspect/Adjust/Replace
Every 500 Service Hours or 3 Months
Engine Oil and Filter - ChangeFuel System Primary Filter - Replace
Fuel System Water Separator Element - Replace
Fuel Tank Cap - Clean
Hydraulic System Oil Filter - Replace
Every 1000 Service Hours or 6 Months
Hydraulic System Oil - ChangeRollover Protective Structure (ROPS) - Inspect
Every 1000 Service Hours or 1 Year
Engine Valve Lash - CheckEvery 2000 Service Hours or 1 Year
Brake Discs - CheckDifferential and Final Drive Oil - Change
Engine Crankcase Breather - Clean
Fuel Injection Timing - Check
Hydrostatic Drive Oil - Change
Every 3000 Service Hours or 2 Years
Cooling System Coolant (DEAC) - ChangeCooling System Coolant Extender (ELC) - Add
Cooling System Water Temperature Regulator - Clean/Replace
Every 6000 Service Hours or 4 Years
Cooling System Coolant (ELC) - ChangeCaterpillar Information System:
769D Off-Highway Truck and 771D Quarry Truck Front Wheel Oil Level - Check
784C and 785C Off-Highway Trucks Machine Systems Air/Hydraulic Cylinder (Brake) - Disassemble
69D, 769D, 773D, 773E, 776D and 777D Off-Highway Trucks and 771D, 775D and 775E Quarry Trucks Power Train Electronic Control System System Schematic
69D, 769D, 773D, 773E, 776D and 777D Off-Highway Trucks and 771D, 775D and 775E Quarry Trucks Power Train Electronic Control System Top Gear Function
561M Pipelayer Fuel System Secondary Filter - Replace
D250E Series II and D300E Series II Articulated Trucks Machine Systems Front Suspension Arm - Remove
773D Off-Highway Truck and 775D Quarry Truck Power Train Transmission Hydraulic Control - Test
69D, 769D, 773D, 773E, 776D and 777D Off-Highway Trucks and 771D, 775D and 775E Quarry Trucks Power Train Electronic Control System General Information
IT14G Integrated Toolcarrier and 914G Wheel Loader Power Train Differential
554 Forwarder and 574 Forwarder Log Loader Extendable Stick - Lubricate
69D and 769D Off-Highway Truck/Tractors and 771D Quarry Truck Power Train Transmission Hydraulic Control - Test
554 Forwarder and 574 Forwarder Oil Filter (Power Train Tank Fill) - Replace
561M Pipelayer Fuel System Water Separator - Drain
554 Forwarder and 574 Forwarder Log Loader Extendable Stick Chain Tension - Check - 8.7 m (29 ft) Reach and 10 m (33 ft) Reach
D250E Series II and D300E Series II Articulated Trucks Machine Systems Front Suspension Arm - Install
69D and 769D Off-Highway Trucks and 771D Quarry Truck Steering System Pressure Reducing Valve (Steering) - Test
554 Forwarder and 574 Forwarder Log Loader Extendable Stick Chain - Clean - 8.7 m (29 ft) Reach and 10 m (33 ft) Reach
554 Forwarder and 574 Forwarder Log Loader Extendable Stick Chain - Lubricate - 8.7 m (29 ft) Reach and 10 m (33 ft) Reach
69D, 769D, 773D, 773E, 776D and 777D Off-Highway Trucks and 771D, 775D and 775E Quarry Trucks Power Train Electronic Control System Tattletale Function
69D and 769D Off-Highway Truck/Tractors and 771D Quarry Truck Power Train Transmission Hydraulic Control Clutch Pressure - Test
D250E Series II and D300E Series II Articulated Trucks Machine Systems Accumulator (Suspension) - Remove and Install
CB-534C and CB-634C Vibratory Compactors Propel System Machine Preparation for Troubleshooting
793C and 793C XQ Off-Highway Truck Air System and Brakes Towing
784C and 785C Off-Highway Trucks Machine Systems Air/Hydraulic Cylinder (Brake) - Assemble