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 (226.06 mm)
Clearance At Max Lift And Dump 8.16 ft in (2485 mm)
Reach At Max Lift And Dump 1.89 ft in (575 mm)
Dump Angle 39 degrees
Height – Top Of Cab 6.94 ft in (0.18 m)
Length – Track On Ground 64.2 in (1630.68 mm)
Length – With Bucket On Ground 146.2 in (3713.48 mm)
Length – Without Bucket 117.9 in (2994.66 mm)
Length With Bucket 12.19 ft in (3714 mm)
Bucket Pin Height – Carry Position 7.8 in (198.12 mm)
Bucket Pin Height – Maximum Lift 10.41 ft in (0.27 m)
Clearance At Maximum Lift And Dump 97.8 in (2484.12 mm)
Departure Angle 32 degrees
Turning Radius From Center – Machine Rear 70.7 in (1795.78 mm)
Vehicle Width (400 Mm/15.7 In Tracks) 76 in (1930.4 mm)
Vehicle Width (450 Mm/17.7 In Tracks) 78 in (1981.2 mm)
Note Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).
Length With Out Bucket 9.83 ft in (2995 mm)
Maximum Dump Angle 39 degrees
Maximum Overall Height 159.5 in (4051.3 mm)
Maximum Reach – With Arms Parallel To Ground 54 in (1371.6 mm)
Overall Height 13.18 ft in (4015 mm)
Overall Length – Track 83.8 in (2128.52 mm)
Overall Track Length 6.99 ft in (2129 mm)
Rack Back Angle – Maximum Height 84 degrees
Reach – Maximum Lift/Dump 22.6 in (574.04 mm)
Turning Radius From Center – Bucket 88.8 in (2255.52 mm)
Turning Radius From Center – Coupler 55.5 in (1409.7 mm)

Undercarriage

Length Of Track On Ground 5.35 ft in (1630 mm)
Ground Pressure 4.92 psi (33.9 kPa)
Ground Contact Area 2015.01 in2 (1.3 m2)

Engine Details

Engine Make DIT
Engine Model Cat C3.3B
Gross Power 74.3 hp (55.5 kw)
Net Power 72.9 hp (54.4 kw)
Peak Torque 195.5 lb ft (265 Nm)
Torque Measured @ 1500 rpm
Displacement 203 cu in (3.4 L)
Bore 3.7 in (94 mm)
Stroke 4.7 in (119.4 mm)
Net Power – Iso 9249 73.7 hp (55 kw)
Gross Power – Sae J1995 74.3 hp (55.5 kw)
Engine Model Cat C3.3B DIT (turbo)
Net Power – Sae 1349 72.9 hp (54.4 kw)
Peak Torque – 1,500 Rpm – Sae J1995 195 lb ft (264.4 Nm)

Operational Specs

Operating Weight 9892.2 lb (4487 kg)
Cooling System Fluid Capacity 3.7 gal (14 L)
Fuel Tank Capacity 24.9 gal (94 L)
Hydraulic System Fluid Capacity 13.8 gal (52 L)
Operating Voltage 12 V
Alternator Supplied Amperage 80 amps
Max Speed – Low Range 4.5 mph (7.2 km/h)
Max Speed – High Range 7.1 mph (11.3 km/h)

Power Train

Travel Speed – Forward Or Reverse – One Speed 4.5 mph (7.3 km/h)
Travel Speed – Forward Or Reverse – Two Speed 7 mph (11.3 km/h)

Loader

Breakout Force 7284.1 lb (3304 kg)
Tipping Load 5871 lb (2663 kg)

Weights

Operating Weight 9893 lb (4487.4 kg)
Note Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).

Hydraulic

Pump Flow 22.8 gal/min (86 L/min)
Relief Valve Pressure 3335.9 psi (23000 kPa)

Hydraulic System

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

Operating Specifications

Note Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).
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

Service Refill Capacities

Cooling System 3.7 gal (14.1 L)
Fuel Tank Capacity 24.8 gal (93.9 L)
Hydraulic Tank 10.3 gal (39 L)
Engine Crankcase 3 gal (11.4 L)
Hydraulic System 13.7 gal (51.9 L)

Cab

Rops ISO 3471:2008
Fops ISO 3449:2005 Level I
Fops Level Ii ISO 3449:2005 Level II

Air Conditioning System

Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

Noise Level

Note (1) Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
Note (2) **The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds.
Note (3) ***The labeled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC.
Inside Cab** 83 dB(A)
Outside Cab*** 103 dB(A)
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