789B Off-Highway Truck Caterpillar

Note: All safety information, warnings and instructions must be read and understood before you perform any operation and any maintenance procedure.

Before each consecutive interval is performed, all of the maintenance requirements from the previous interval must be performed.

When Required

Air Conditioner Filter - Clean
Automatic Lubrication Reservoir - Fill
Brake Oil Cooler Screen - Clean
Brake Oil Reservoir - Clean/Refill
Cab Air Filter - Clean/Replace
Circuit Breakers (EMS) - Reset
Circuit Breakers (VIMS) - Reset
Engine Air Filter Primary Element - Clean/Replace
Engine Air Filter Secondary Element - Replace
Engine Air Filter Service Indicator Screen - Replace
Engine Air Precleaner - Clean
Ether Starting Aid Cylinder - Replace
Frame and Body - Inspect
Fuses (EMS) - Replace
Fuses (VIMS) - Replace
Hoist Screens - Clean
Hoist, Torque Converter and Brake Tank Suction Screen - Inspect, Clean and Replace
Oil Filter - Inspect
Torque Converter Sump Screen - Clean
Transmission Tank Suction Screen - Clean/Inspect/Replace
Window - Clean
Window Washer Reservoir - Fill
Window Wiper - Inspect/Replace

Every 10 Service Hours or Daily

Air Tank Moisture and Sediment - Drain
Backup Alarm - Test
Brakes, Indicators and Gauges - Test
Cooling System Level - Check
Differential and Final Drive Oil Level - Check
Engine Air Filter Service Indicator - Inspect
Engine Oil Level - Check
Fuel Tank Water and Sediment - Drain
Hoist, Torque Converter and Brake Tank Oil Level - Check
Seat Belt - Inspect
Steering System Oil Level - Check
Transmission Tank Oil Level - Check
Walk-Around Inspection

Initial 50 Service Hours

Parking Brake Release Oil Filter - Replace
Rear Axle Oil Filter - Replace
Steering Pump Case Drain Element - Replace
Steering System Oil Filter - Replace
Torque Converter Oil Filter - Replace
Transmission Oil Filter - Replace

Every 250 Service Hours or Monthly

Air Conditioner - Test
Air Conditioner Belt - Inspect/Adjust/Replace
Air Conditioner Filter - Clean
Air Dryer - Check
Alternator and Fan Belts - Inspect/Adjust/Replace
Battery - Recycle
Battery Electrolyte Level - Check
Battery, Battery Cable or Battery Disconnect Switch - Replace
Braking System - Test
Cab Air Filter - Clean/Replace
Cooling System Coolant Additive (DEAC) - Add
Drive Shaft Slip Joint - Lubricate
Engine Oil and Filter - Change
Engine Oil Sample - Obtain
Fan Drive Bearing and Belt Adjusting Pulley - Lubricate
Front Wheel Oil - Inspect
Magnetic Plug (Wheels) - Check
Tire Inflation - Check

Initial 250 Service Hours (or at first oil change)

Engine Valve Lash and Bridge - Adjust

Every 500 Service Hours or 3 Months

Automatic Lubrication Reservoir - Fill
Differential and Final Drive Oil - Inspect
Frame - Clean/Inspect
Front Wheel Oil - Change
Fuel System - Prime
Fuel System Primary Filter - Clean/Inspect/Replace
Fuel System Secondary Filter - Replace
Fuel Tank Cap and Strainer - Clean
Hoist, Torque Converter and Brake Tank Breather - Replace
Master Cylinder Breather - Clean
Obtain S·O·S Samples
Parking Brake Release Oil Filter - Replace
Rear Axle Oil Filter - Replace
Steering Accumulator - Check
Steering Pump Case Drain Element - Replace
Steering System Oil Filter - Replace
Suspension Cylinder - Check
Torque Converter Oil Filter - Replace
Torque Converter Outlet Screen - Replace
Transmission Breather - Clean
Transmission Oil Filter - Replace

Every 1000 Service Hours or 6 Months

Air Dryer Desiccant - Replace
Frame and Body Support Pads - Clean/Inspect
Rollover Protective Structure (ROPS) - Inspect
Service Brakes - Inspect
Steering Linkage - Inspect
Transmission Magnetic Screen - Clean
Transmission Tank Oil - Change
Transmission Oil Filler and Screens - Replace/Clean

Every 2000 Service Hours or 1 Year

Differential Thrust Pin Clearance - Check
Differential and Final Drive Breather - Replace
Differential and Final Drive Oil - Change
Front Axle Breather - Replace
Hoist, Torque Converter and Brake Tank Oil - Change
Steering System Oil - Change

Every 3000 Service Hours or 2 Years

Cooling System Coolant (DEAC) - Change
Cooling System Coolant Extender (ELC) - Add
Cooling System Pressure Cap - Clean/Replace
Cooling System Relief Valve - Clean
Radiator Core - Clean
VIMS Module Battery - Replace

Every 4000 Service Hours

Engine Valve Lash and Bridge - Adjust

Every 6000 Service Hours or 4 Years

Cooling System Coolant (ELC) - Change
Cooling System Water Temperature Regulator - Replace
Engine Water Pump - Inspect

Every 1 137 900 L (300 000 US gal) of Fuel or 9000 Service Hours

Engine Components - Rebuild/Install Reman

Every 2 271 000 L (600 000 US gal) of Fuel or 18 000 Service Hours

Engine Components - Clean/Inspect, Rebuild/Install Reman, Install New