Caterpillar 279D3 Track Loader Maintenance Data

The Caterpillar 279D3 compact track loader is powered by 203.1 cu.in (3.3L) Cat C3.3B DIT 4-cylinder turbocharged diesel engine with a rated power of 72.9 hp (54.4 kW). The Caterpillar 279D3 is equipped with a 2-speed transmission, radial-lift loader boom, and steel embedded rubber tracks. The hydraulic system has standard or HF XPS pump with fluid flow rate of 23 gpm (86 lpm) or 32 gpm (121 lpm). The hydraulic pressure is 3335 psi (230 bar) or 4060 psi (280 bar). The track loader has a rated operating capacity of 2220 lbs (1010 kg) and tipping load of 6340 lbs (2890 kg). The lift height is 124.9" (3175 mm) to hinge pin, and dump height is 97.8" (2485 mm).

Refill Capacities

Engine Oil Capacity, gal (L) .................... 2.9 (11.0)
Engine Coolant Capacity, gal (L) .................... 3.7 (14.0)
Hydraulic Tank Fluid Capacity, gal (L) .................... 10.3 (39.0)
Hydraulic System Fluid Capacity, gal (L) .................... 13.7 (52.0)
Final Drive Oil Capacity, qts (L) .................... 1.1 (1.0)

Recommended Oil and Fluid

Engine Oil Type .................... Cat DEO-ULS, SAE 10W-30, 15W-40. API Service CE, CF-4, CG-4
Engine Coolant Type .................... Caterpillar Diesel Engine Antifreeze/Coolant
Hydraulic Fluid Type .................... Cat HYDO Advanced, SAE 30, SAE 10W, Cat TDTO-TMS Multi-Grade
Final Drive Oil Type .................... Cat Synthetic GO, SAE 75W-90 or 75W-140 Gear Oil, API Service GL-5

Service Intervals

Lubricate Cylinder Pivot Points .................... Every 50 Hours
Check and Adjust Track Tension .................... Every 100 Hours
Check and Adjust Alternator/Fan Belt .................... Every 250 Hours
Check Final Drive Oil Level .................... Every 250 Hours
Clean Primary Engine Air Filter .................... Every 250 Hours
Clean Cab Air Filters .................... Every 250 Hours
Change Engine Oil .................... Every 500 Hours
Replace Engine Oil Filter .................... Every 500 Hours
Replace Primary Fuel Filter .................... Every 500 Hours
Replace Final Fuel Filter .................... Every 500 Hours
Replace Primary Engine Air Filter .................... Every 500 Hours
Replace Secondary Engine Air Filter .................... Every 500 Hours
Replace Hydraulic Tank Breather .................... Every 500 Hours
Change Final Drive Oil .................... Every 500 Hours
Change Hydraulic Fluid .................... Every 1000 Hours
Replace Hydraulic Oil Filter .................... Every 1000 Hours
Replace Alternator/Fan Belt .................... Every 1000 Hours
Replace Cab Air Filters .................... Every 1000 Hours
Service And Refill Cooling System .................... Every 2000 Hours

Replacement Parts

Engine Oil Filter. Part Number .................... 377-6969
Engine Fuel Filter. Part Number .................... 541-6956
Primary Engine Air Filter. Part Number .................... 110-6326
Secondary Engine Air Filter. Part Number .................... 110-6331
Cab Air Filter. Part Number .................... 265-6618, 265-6619
Hydraulic Oil Tank Breather. Part Number .................... 258-2829
Hydraulic Oil Filter. Part Number .................... 421-5479
Alternator/Fan Belt. Part Number .................... 5L-3979

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BOBCAT SKID STEER AND COMPACT TRACK LOADERS

S100