CAT 279D Compact Track Loader

Dimensions

Width Over Tracks 6.34 ft in (1931 mm)
Height To Top Of Cab 6.94 ft in (2113 mm)
Ground Clearance 8.9 in (226 mm)
Clearance At Max Lift And Dump 97.8 in (2485 mm)
Reach At Max Lift And Dump 22.6 in (575 mm)
Overall Length – Track 83.8 in (2129 mm)
Length – Track On Ground 64.2 in (1631 mm)
Length – With Bucket On Ground 146.2 in (3713 mm)
Length – Without Bucket 117.9 in (2996 mm)
Length With Bucket 146.2 in (3714 mm)
Bucket Pin Height – Carry Position 7.8 in (198 mm)
Bucket Pin Height – Maximum Lift 124.9 in (3173 mm)
Clearance At Maximum Lift And Dump 97.8 in (2484 mm)
Turning Radius From Center – Machine Rear 70.7 in (1796 mm)
Vehicle Width (400 Mm/15.7 In Tracks) 76 in (1930 mm)
Vehicle Width (450 Mm/17.7 In Tracks) 78 in (1981 mm)
Dump Angle 39 degrees
Departure Angle 32 degrees
Rack Back Angle – Maximum Height 84 degrees
Maximum Dump Angle 39 degrees
Maximum Overall Height 159.5 in (4051 mm)
Maximum Reach – With Arms Parallel To Ground 54 in (1372 mm)
Reach – Maximum Lift/Dump 22.6 in (574 mm)
Turning Radius From Center – Bucket 88.8 in (2256 mm)
Turning Radius From Center – Coupler 55.5 in (1410 mm)

Loader

Rated Operating Capacities – 50% Tipping Load 2935 lb (1331.3 kg)
Rated Operating Capacities – 35% Tipping Load 2055 lb (932.2 kg)
Rated Operating Capacity With Optional Counterweight 3185 lb (1444.7 kg)
Tipping Load 5870 lb (2662.6 kg)
Breakout Force – Tilt Cylinder 7285 lb (3304.5 kg)
Ground Contact Area – With 400 Mm/15.7 In Track 2015 in2 (1.3 m2)
Ground Contact Area – With 450 Mm/17.7 In Track 2272 in2 (1.5 m2)
Ground Pressure – With 400 Mm/15.7 In Track 4.9 psi
Ground Pressure – With 450 Mm/17.7 In Track 4.4 psi

Undercarriage

Length Of Track On Ground 5.35 ft in (1630 mm)
Ground Pressure 4.92 psi (33.9 kPa)
Ground Contact Area 2015 in2 (1.3 m2)

Engine Details

Number of Cylinders 4
Engine Make Caterpillar
Engine Model Cat C3.3B DIT (turbo)
Displacement 203 cu in (3.4 L)
Bore 3.7 in (94 mm)
Stroke 4.7 in (119.4 mm)
Gross Power 74.3 hp (55.5 kw)
Net Power 72.9 hp (54.4 kw)
Power Measured @ 2400 rpm
Peak Torque 195 lb ft (265 Nm)
Torque Measured @ 1500 rpm
Aspiration Turbocharged aftercooled
Emission Standards US EPA Tier 4 Final and EU Stage IIIB

Operational Specs

Operating Weight 9892 lb (4487 kg)
Operating Voltage 12 V
Alternator 80 amps
Battery 12 V, CCA 880

Cab

ROPS ISO 3471:2008
FOPS ISO 3449:2005 Level I
FOPS Level Ii ISO 3449:2005 Level II
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a.
Noise Level Inside Cab 83 dB(A)
Noise Level Outside Cab 103 dB(A)

Power Train

Type Hydrostatic Transmission
Travel Speed, 1st Speed (Forward / Reverse) 4.5 mph (7.3 km/h)
Travel Speed, 2nd Speed (Forward / Reverse) 7 mph (11.3 km/h)

Hydraulic System

Pump Flow 22.8 gal/min (86 L/min)
Relief Valve Pressure 3335.9 psi (23000 kPa)
Hydraulic Flow – High Flow Xps – Hydraulic Power (Calculated) 76 hp (56.7 kw)
Hydraulic Flow – Standard – Loader Hydraulic Pressure 3335 psi
Hydraulic Flow – Standard – Loader Hydraulic Flow 23 psi
Hydraulic Flow – Standard – Hydraulic Power (Calculated) 44 hp (32.9 kw)
Hydraulic Flow – High Flow Xps – Maximum Loader Hydraulic Pressure 4061 HP
Hydraulic Flow – High Flow Xps – Maximum Loader Hydraulic Flow 32 gal/min

Service Refill Capacities

Fuel Tank Capacity 24.8 gal (94 L)
Engine Crankcase 3 gal (11.4 L)
Cooling System Capacity 3.7 gal (14 L)
Hydraulic System Capacity 13.7 gal (52 L)
Hydraulic Tank Capacity 10.3 gal (39 L)
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