Maintenance Interval Schedule
Ensure that all safety information, warnings, and instructions are read and understood before any operation or any maintenance procedures are performed.
Aftercooler Intake Screen - Clean
Air Conditioner Condenser - Clean
Battery or Battery Cable - Inspect/Replace
Blade Frame - Adjust
Bucket Cutting Edges - Inspect/Replace
Bucket Tips - Inspect/Replace
Cab Air Filter - Clean/Replace
Cab Interior - Clean
Engine Air Filter Primary Element - Clean/Replace
Engine Air Filter Secondary Element - Replace
Engine Compartment - Clean
Fuel System Priming Pump - Operate
Fuel Tank Cap - Clean
Fuel Tank Water and Sediment - Drain
Fuses - Replace
Lower Machine Frame - Clean
Oil Filter - Inspect
Radiator Core - Clean
Track (Rubber) - Remove/Replace
Window Washer Reservoir - Fill
Window Wiper - Inspect/Replace
Windows - Clean
Axle Bearings - Lubricate
Backup Alarm - Test
Bogie and Idler - Inspect/Replace
Bogie and Idler - Inspect/Replace
Cooling System Level - Check
Engine Oil Level - Check
Equipment Lowering Control Valve - Check
Fuel System Primary Filter (Water Separator) - Drain
Hydraulic System Oil Level - Check
Lift Arm and Cylinder Linkage - Lubricate
Quick Coupler - Clean/Inspect
Seat Belt - Inspect
Sprocket Sleeve - Inspect
Tilt Cylinder Bearings and Bucket Linkage Bearings - Lubricate
Track (Rubber) - Inspect/Adjust
Work Tool - Lubricate
Work Tool Mounting Bracket - Inspect
Final Drive Oil - Change
Hydraulic System Oil Sample - Obtain
Hydraulic System Oil Filter - Replace
Hydraulic Tank Breather - Replace
Hydraulic System Oil - Change
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, in order 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.
When Required
Aftercooler Core - Inspect/CleanAftercooler Intake Screen - Clean
Air Conditioner Condenser - Clean
Battery or Battery Cable - Inspect/Replace
Blade Frame - Adjust
Bucket Cutting Edges - Inspect/Replace
Bucket Tips - Inspect/Replace
Cab Air Filter - Clean/Replace
Cab Interior - Clean
Engine Air Filter Primary Element - Clean/Replace
Engine Air Filter Secondary Element - Replace
Engine Compartment - Clean
Fuel System Priming Pump - Operate
Fuel Tank Cap - Clean
Fuel Tank Water and Sediment - Drain
Fuses - Replace
Lower Machine Frame - Clean
Oil Filter - Inspect
Radiator Core - Clean
Track (Rubber) - Remove/Replace
Window Washer Reservoir - Fill
Window Wiper - Inspect/Replace
Windows - Clean
Every 10 Service Hours or Daily
Air Cleaner Dust Valve - Clean/InspectAxle Bearings - Lubricate
Backup Alarm - Test
Bogie and Idler - Inspect/Replace
Bogie and Idler - Inspect/Replace
Cooling System Level - Check
Engine Oil Level - Check
Equipment Lowering Control Valve - Check
Fuel System Primary Filter (Water Separator) - Drain
Hydraulic System Oil Level - Check
Lift Arm and Cylinder Linkage - Lubricate
Quick Coupler - Clean/Inspect
Seat Belt - Inspect
Sprocket Sleeve - Inspect
Tilt Cylinder Bearings and Bucket Linkage Bearings - Lubricate
Track (Rubber) - Inspect/Adjust
Work Tool - Lubricate
Work Tool Mounting Bracket - Inspect
Initial 250 Service Hours
Final Drive Oil - ChangeEvery 250 Service Hours
Final Drive Oil Level - CheckEvery 250 Service Hours or Monthly
Belts - Inspect/Adjust/ReplaceEvery 500 Service Hours
Cooling System Coolant Sample (Level 1) - ObtainFinal Drive Oil - Change
Hydraulic System Oil Sample - Obtain
Every 500 Service Hours or 6 Months
Fuel System Primary Filter (Water Separator) Element - ReplaceHydraulic System Oil Filter - Replace
Every 500 Service Hours or 1 Year
Engine Oil and Filter - ChangeHydraulic Tank Breather - Replace
Every 1000 Service Hours
Engine Valve Lash - CheckEvery 1000 Service Hours or 6 Months
Rollover Protective Structure (ROPS) and Falling Object Protective Structure (FOPS) - InspectEvery 1000 Service Hours or 1 Year
Sprocket - InspectEvery 2000 Service Hours
Refrigerant Dryer - ReplaceEvery 2000 Service Hours or 1 Year
Fuel Injection Timing - CheckHydraulic System Oil - Change
Every Year
Cooling System Coolant Sample (Level 2) - ObtainEvery 3000 Service Hours or 2 Years
Cooling System Water Temperature Regulator - ReplaceEvery 3 Years After Date of Installation or Every 5 Years After Date of Manufacture
Seat Belt - ReplaceEvery 6000 Service Hours or 3 Years
Cooling System Coolant Extender (ELC) - AddEvery 12 000 Service Hours or 6 Years
Cooling System Coolant (ELC) - ChangeCaterpillar Information System:
Diesel Exhaust Fluid (DEF) Pump on Certain C4.4 Engines {108U, 1439} Diesel Exhaust Fluid (DEF) Pump on Certain C4.4 Engines {108U, 1439}
Deck Wrench Cylinder Duty Cycle May Not Be Within Specification on Certain MD6200, MD6250, and MD6310 Rotary Drills {7562} Deck Wrench Cylinder Duty Cycle May Not Be Within Specification on Certain MD6200, MD6250, and MD6310 Rotary Drills {7562}
Fenders May Crack on Certain Telehandlers {7252} Fenders May Crack on Certain Telehandlers {7252}
Alternators for C3.4B Engines May Fail on Certain Telehandlers {1405} Alternators for C3.4B Engines May Fail on Certain Telehandlers {1405}
Quick Coupler Harness Receptacle May Pinned Wrong and Quick Coupler Switch May Malfunction on Certain 986K Wheel Loaders {1408} Quick Coupler Harness Receptacle May Pinned Wrong and Quick Coupler Switch May Malfunction on Certain 986K Wheel Loaders {1408}
New Software Version Is Now Available for Certain Cat® MineStar System {7605, 7620} New Software Version Is Now Available for Certain Cat® MineStar System {7605, 7620}
Inspection of the Rear of the Engine on Certain C4.4 Machines {1201} Inspection of the Rear of the Engine on Certain C4.4 Machines {1201}
Certain Cat® Product Link A6 Platform Network Managers May Stop Reporting and Loses Communication {7606} Certain Cat® Product Link A6 Platform Network Managers May Stop Reporting and Loses Communication {7606}
Certain Cat® MineStar Terrain Onboard G610 Devices May Not Retain Device Serial Numbers {7605, 7620} Certain Cat® MineStar Terrain Onboard G610 Devices May Not Retain Device Serial Numbers {7605, 7620}
Pistons May Corrode on Certain B4, B6, and B8 Hammers {5077, 6333} Pistons May Corrode on Certain B4, B6, and B8 Hammers {5077, 6333}
Product Link ™ PLE702, PLE601, PLE602, PLE602P, PL641, PL641V2, PL631, PL631V2, PL542, PL240, PL240B, PL241, PL131, PL141, PL161, and PL042 Systems Product Link - PL131 - If Equipped
Improved Fuse Block Assembly is Now Used on Certain Asphalt Compactors {1408} Improved Fuse Block Assembly is Now Used on Certain Asphalt Compactors {1408}
776D and 777D Off-Highway Truck/Tractor Tire Inflation - Check
The Hoist Lines Group is Improved on Certain 793D Off-Highway Trucks {5057} The Hoist Lines Group is Improved on Certain 793D Off-Highway Trucks {5057}
Body May Interfere with Mud Guard at Rear of Left Fender Group {4220, 7252} Body May Interfere with Mud Guard at Rear of Left Fender Group {4220, 7252}
Premature Nose-Cone and King-Pin Wear May Occur on Certain 794, 796, and 798 Off-Highway Trucks {3260, 4314} Premature Nose-Cone and King-Pin Wear May Occur on Certain 794, 796, and 798 Off-Highway Trucks {3260, 4314}
An Improved Cooling System Venting Procedure is Now Available in the Operation and Maintenance Manual for Certain C175 Off-Highway Truck Engines {0374, 1350} An Improved Cooling System Venting Procedure is Now Available in the Operation and Maintenance Manual for Certain C175 Off-Highway Truck Engines {0374, 1350}
New Hard Washers are Used for the Mounting Hardware on the Oil Scavenge Pump for Certain C175 Off-Highway Truck Engines {1312} New Hard Washers are Used for the Mounting Hardware on the Oil Scavenge Pump for Certain C175 Off-Highway Truck Engines {1312}
An Improved Fuel Injector is Now Used on Certain C9.3 Machine Engines {1251, 1254, 1290, 1713} An Improved Fuel Injector is Now Used on Certain C9.3 Machine Engines {1251, 1254, 1290, 1713}
Identifying Oil Leaks on Certain 3500 Mining Machine Engines {1151, 1348} Identifying Oil Leaks on Certain 3500 Mining Machine Engines {1151, 1348}
New Tooling and Installation Process for Crankshaft Seal on C27 and C32 Engines {0701, 1160, 1161} New Tooling and Installation Process for Crankshaft Seal on C27 and C32 Engines {0701, 1160, 1161}
Air Bubbles Can Be Visible on Films Applied on Certain Material Handlers and Wheeled Excavators {7405, 7557} Air Bubbles Can Be Visible on Films Applied on Certain Material Handlers and Wheeled Excavators {7405, 7557}
New Machine Software Groups are Now Used on Certain Telehandlers {7610, 7620} New Machine Software Groups are Now Used on Certain Telehandlers {7610, 7620}
Governor Pedal Group or Cable Assembly for the Engine May Stick on Certain Backhoe Loaders {1265} Governor Pedal Group or Cable Assembly for the Engine May Stick on Certain Backhoe Loaders {1265}