308 Mini Hydraulic Excavators 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: The aftertreatment system can be expected to function properly for the useful life of the engine (emissions durability period), as defined by regulation. All prescribed maintenance requirements must be followed.

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

Note: If Cat HYDO Advanced hydraulic oils are used, the hydraulic oil change interval is extended to 6000 hours. S·O·S services after 3000 hours is strongly recommended. Consult your Cat dealer for details.

When Required

Battery or Battery Cable - Inspect/Replace
Blade Cutting Edges - Inspect/Replace
Bucket Linkage - Lubricate
Bucket Tips - Inspect/Replace
Camera - Clean
Condenser (Refrigerant) - Clean
Diesel Particulate Filter - Clean
Engine Air Filter Element - Clean/Replace
Engine Air Filter Primary Element - Replace
Engine Air Filter Secondary Element - Replace
Film (Product Identification) - Clean
Fuel System - Prime
Fuel Tank Strainer - Clean
High Intensity Discharge Lamp (HID) - Replace
Hydraulic Tank Screen - Clean
Radiator Core - Clean
Rollover Protective Structure (ROPS) - Inspect
Shovel Crane - Inspect
Track Adjustment - Adjust
Track Adjustment - Adjust
Window Washer Reservoir - Fill
Windows - Clean
Window Wiper - Inspect/Replace

Every 10 Service Hours or Daily for First 100 Hours

Blade Linkage - Lubricate
Boom and Stick Linkage - Lubricate
Boom and Stick Linkage - Lubricate
Boom and Stick Linkage - Lubricate

Every 10 Service Hours or Daily

Air Cleaner Dust Valve - Clean/Inspect
Air Conditioner/Cab Heater Filter (Recirculation) - Inspect/Replace
Bucket Linkage - Lubricate
Cab Air Filter (Fresh Air) - Clean/Replace
Cooling System Coolant Level - Check
Engine Air Filter Service Indicator - Inspect
Engine Oil Level - Check
Fuel System Water Separator - Drain
Fuel Tank Water and Sediment - Drain
Hydraulic System Oil Level - Check
Indicators and Gauges - Test
Quick Coupler - Lubricate
Quick Coupler - Lubricate
Quick Coupler - Lubricate
Seat Belt - Inspect
Thumb - Lubricate
Track Adjustment - Inspect
Travel Alarm - Test
Undercarriage - Check

Every 10 Service Hours or Daily for Machines Used in Severe Applications

Blade Linkage - Lubricate

Every 50 Service Hours

Blade Linkage - Lubricate

Every 100 Service Hours

Swing Bearing - Lubricate
Swing Gear - Lubricate

Every 100 Service Hours or 2 Weeks for Machines Used in Severe Applications

Boom and Stick Linkage - Lubricate
Boom and Stick Linkage - Lubricate
Boom and Stick Linkage - Lubricate

Every 250 Service Hours

Belts - Inspect/Adjust/Replace
Condenser (Refrigerant) - Clean
Cooling System Coolant Sample (Level 1) - Obtain
Engine Oil Sample - Obtain
Final Drive Oil Sample - Obtain
Shovel Crane - Lubricate

Initial 500 Service Hours

Final Drive Oil - Change

Initial 500 Hours (for New Systems, Refilled Systems, and Converted Systems)

Cooling System Coolant Sample (Level 2) - Obtain

Every 500 Service Hours

Air Conditioner/Cab Heater Filter (Recirculation) - Replace
Boom, Stick, and Frame - Inspect
Cab Air Filter (Fresh Air) - Replace
Engine Oil and Filter - Change
Fuel System Primary Filter (Water Separator) Element - Replace
Hydraulic System Oil Sample - Obtain

Every 1000 Service Hours

Battery - Clean
Battery Hold-Down - Tighten
Belts - Replace
Boom and Stick Linkage - Lubricate
Boom and Stick Linkage - Lubricate
Boom and Stick Linkage - Lubricate
Engine Valve Lash - Check
Final Drive Oil Level - Check
Fuel Lift Pump Strainer - Replace
Rollover Protective Structure (ROPS) - Inspect

Every 1500 Service Hours

Engine Crankcase Breather - Replace

Every 2000 Service Hours of Partial Hammer Use (50% of Service Hours)

Hydraulic System Oil - Change

Every 2000 Service Hours

Final Drive Oil - Change
Fuel Cap Filter - Replace
Hydraulic System Oil Filter (Return) - Replace
Receiver Dryer (Refrigerant) - Replace
Swing Gear and Bearing - Inspect

Every Year

Cooling System Coolant Sample (Level 2) - Obtain

Every 3 Years

Seat Belt - Replace

Every 6000 Service Hours

Hydraulic System Oil - Change

Every 6000 Service Hours or 3 Years

Cooling System Coolant Extender (ELC) - Add

Every 12 000 Service Hours

Cooling System Coolant (ELC) - Change