Caterpillar 279C Track Loader Specifications

The Caterpillar 279C compact track loader driveline system components: a 201.2 cu.in (3.3L) Cat C3.4 DIT 4-cylinder direct injection turbocharged diesel engine with a rated power of 84 hp (63 kW), and 2-speed hydrostatic transmission. The hydraulic system has a pump with a rated flow of 22 gpm (84 lpm). The system pressure is 3335 psi (230 bar). The Caterpillar 279C is equipped with planetary final drives, steel embedded rubber tracks, and wet multi disc brakes. The loader has a lift height of 123.2" (3130 mm) to hinge pin and bucket breakout force of 7310 lbs (3315 kg). The rated operating capacity is 2240 lbs (1016 kg), and tipping load is 6480 lbs (2940 kg).

Engine Specs

Engine Model ...................... Cat C3.4 DIT
Engine Type ...................... 4-cycle liquid-cooled diesel
Number of Cylinders ...................... 4, in-line
Displacement, cu.in (L) ...................... 201.2 (3.31)
Cylinder Bore, in (mm) ...................... 3.70 (94.0)
Piston Stroke, in (mm) ...................... 4.72 (120.0)
Aspiration ...................... Turbocharged
Rated Engine Power, hp (kW) ...................... 84.0 (63.0)
Maximum Engine Power, hp (kW) ...................... 82.0 (61.0)
Rated Engine Speed, rpm ...................... 2500
Compression Ratio ...................... 17:1
Firing Order ...................... 1-3-4-2
Fuel System ...................... Direct injection
Lubrication System ...................... Forced circulation
Cooling System ...................... Forced water cooling by centrifugal pump
Air Cleaner ...................... Dual element, radial seal
Fuel Tank Capacity, gal (L) ...................... 25.8 (98.0)
Oil Capacity, qts (L) ...................... 10.6 (10.0)
Coolant Capacity, qts (L) ...................... 14.8 (14.0)
Electrical System Rating, Volts ...................... 12
Charging System ...................... Alternator
Alternator Rating, Amps ...................... 90

Drive Train

Drive System Type ...................... Hydrostatic
Number of Gears ...................... 2 (low/high)
Pump Type ...................... Axial-piston
Brakes Type ...................... Wet multi disc
Final Drive Capacity, qts (L) ...................... 1.1 (1.0)
Forward Speed (Low range), mph (kph) ...................... 5.0 (8.1)
Reverse Speed (Low range), mph (kph) ...................... 5.0 (8.1)
Forward Speed (High range), mph (kph) ...................... 8.5 (13.6)
Reverse Speed (High range), mph (kph) ...................... 8.5 (13.6)

Undercarriage

Tracks Type ...................... Steel embedded rubber track
Track Width (Std), in (mm) ...................... 17.7 (450)
Track Width (Opt), in (mm) ...................... 15.8 (400)
Track Rollers (per Side) ...................... 5 triple-flanged rollers
Track Idlers (per Side) ...................... 2 triple-flanged idlers

Hydraulic System

Hydraulic System Type ...................... Axial piston pump variable displacement
Pump Flow (Std), gpm (Lpm) ...................... 22.0 (84.0)
Pump Flow (High XPS), gpm (Lpm) ...................... 33.0 (125.0)
System Pressure (Std), Bar (psi) ...................... 230 (3335)
System Pressure (High XPS), Bar (psi) ...................... 280 (4060)
Hydraulic Tank Capacity, gal (L) ...................... 10.3 (39.0)
Hydraulic System Capacity, gal (L) ...................... 15.0 (57.0)

Loader Performance

Rated Operating Capacity, lbs (kg) ...................... 2240 (1016)
Tipping Load, lbs (kg) ...................... 6480 (2940)
Bucket Breakout Force, lbs (kg) ...................... 7310 (3315)
Ground Pressure, Bar (psi) ...................... 0.275 (4.0)

Dimensions and Weight

Length (w/o Bucket), in (mm) ...................... 116.5 (2960)
Length (Bucket On Ground), in (mm) ...................... 144.8 (3680)
Length (Ground Contact), in (mm) ...................... 69.6 (1765)
Length of Track, in (mm) ...................... 89.4 (2270)
Height (Operator Cab), in (mm) ...................... 83.3 (2115)
Height (Boom Raised), in (mm) ...................... 157.7 (4005)
Width (w/o Bucket, Standard Track), in (mm) ...................... 78 (1980)
Height to Hinge Pin (Fully Raised), in (mm) ...................... 123.2 (3130)
Height to Hinge Pin (Carry Position), in (mm) ...................... 7.7 (195)
Dump Angle At Max Height, deg ...................... 40
Dump Height (Fully Raised), in (mm) ...................... 95.6 (2425)
Dump Reach At Max Height, in (mm) ...................... 23.4 (595)
Rollback Angle At Max Height, deg ...................... 85
Departure Angle, deg ...................... 44
Bucket Width, in (mm) ...................... 78 (1980)
Ground Clearance, in (mm) ...................... 9.1 (230)
Turning Radius (w/Bucket), in (mm) ...................... 91.1 (2315)
Operating Weight (Standard Track), lbs (kg) ...................... 9890 (4485)