631K Wheel Tractor-Scraper Caterpillar

Ensure that all safety information, warnings, and instructions are read and understood before any operation or any maintenance procedures are performed.

The user is responsible for the performance of maintenance. All adjustments, the use of proper lubricants, fluids, filters, and the replacement of components due to normal wear and aging are included. 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, to determine the maintenance intervals. Products that operate in severe operating conditions may require more frequent maintenance. Refer to the maintenance procedure for any other exceptions that may change the maintenance intervals.

Note: Before each consecutive interval is performed, all maintenance from the previous interval must be performed.

Use the service hour meter for the machine or machine system to determine when maintenance should be performed.

When Required

Battery - Recycle
Circuit Breakers - Reset
Cutting Edges and End Bits - Inspect/Replace
Display and Camera - Clean
Draft Arm Wear Plates - Check/Adjust
Ejector Carrier Rollers - Check/Adjust
Ejector Guide Rollers - Check/Adjust
Ejector Support Rollers - Check/Adjust
Engine - Clean
Engine Air Filter Primary Element - Replace
Engine Air Filter Secondary Element - Replace
Ether Starting Aid Cylinder - Replace
Film (Product Identification) - Clean
Fuses - Replace
Oil Filter - Inspect
Radiator Core - Clean
Secondary Steering - Test
Window Washer Reservoir - Fill
Window Wiper - Inspect/Replace
Windows - Clean

Every 10 Service Hours or Daily

Backup Alarm - Test
Brakes, Indicators and Gauges - Test
Cooling System Coolant Level - Check
Differential and Final Drive Oil Level - Check
Engine Oil Level - Check
Fuel System Water Separator - Drain
Hydraulic Oil Cooler - Clean
Hydraulic System Oil Level - Check
Push Plate - Lubricate
Radiator Core - Clean
Seat Belt - Inspect
Transmission Oil Level - Check

Every 50 Service Hours or Weekly

Bail Bearings and Push Plate Spring - Lubricate
Bowl Lift Cylinder Bearings - Lubricate
Cab Air Filter - Clean/Replace
Fuel Tank Water and Sediment - Drain
Hitch - Lubricate
Tire Inflation - Check

Every 250 Service Hours or Monthly

Braking System - Test
Engine Oil Sample - Obtain
Hydraulic System Oil Sample - Obtain
Transmission Oil Sample - Obtain
Wheel Bearing Oil Level - Check

Every 500 Service Hours or 3 Months

Accumulator (Brake) - Check
Accumulator (Cushion Hitch) - Check
Battery - Clean/Check
Belts - Inspect/Replace
Brake Pads - Check
Cooling System Coolant Sample (Level 1) - Obtain
Differential and Final Drive Oil Sample - Obtain
Engine Oil and Filter - Change
Fuel System Primary Filter (Water Separator) Element - Replace
Fuel System Secondary Filter - Replace
Fuel Tank Cap and Strainer - Clean
Hydraulic System Oil Filter - Replace
Oil Filter (Brake, Hydraulic Fan) - Replace
Oil Filter (Cushion-Hitch) - Replace
Transmission Oil Filter and Magnetic Screen - Replace/Clean

Every 1000 Service Hours or 6 Months

Breather (Differential and Final Drive) - Replace
Breather (Fuel Tank) - Replace
Breather (Transmission) - Replace
Condenser (Refrigerant) - Clean
Hydraulic Tank Breaker Relief Valve - Replace
Rollover Protective Structure (ROPS) - Inspect
Service and Parking Brake - Inspect
Suction Screen (Transmission Scavenge) - Clean
Transmission Oil - Change

Every Year

Refrigerant Dryer - Replace

Every 2000 Service Hours or 1 Year

Battery or Battery Cable - Inspect/Replace
Cooling System Coolant Sample (Level 2) - Obtain
Differential Thrust Pin Clearance - Check
Differential and Final Drive Oil - Change
Ejector Carrier Rollers - Inspect/Pack/Replace
Ejector Guide Rollers - Inspect/Pack/Replace
Ejector Support Rollers - Inspect/Pack/Replace
Hitch - Inspect
Hydraulic System Oil - Change
Wheel Bearing Oil - Change

Every 2500 Service Hours

Electronic Unit Injector - Inspect/Adjust
Engine Compression Brake Valve Lash - Check
Engine Valve Lash - Check

Every 3000 Service Hours or 2 Years

Cooling System Pressure Cap - Clean/Replace

Every 3 Years

Seat Belt - Replace

Every 6000 Service Hours or 3 Years

Cooling System Coolant Extender (ELC) - Add

Every 12 000 Service Hours or 6 Years

Cooling System Coolant (ELC) - Change