Caterpillar 279D Compact Track Loader

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.

Cab

FOPS ISO 3449:2005 Level I
FOPS Level II ISO 3449:2005 Level II
ROPS ISO 3471:2008

Dimensions

Bucket Pin Height – Carry Position 8 in (20 cm)
Bucket Pin Height – Maximum Lift 11 ft (3 m)
Clearance at Max Lift and Dump 8 ft (2 m)
Clearance at Maximum Lift and Dump 98 in (248 cm)
Departure Angle 32 degrees
Dump angle 39 degrees
Ground Clearance 9 in (23 cm)
Height – Top of Cab 7 ft (2 m)
Length – Track on Ground 64 in (163 cm)
Length – with Bucket 12 ft (4 m)
Length – With Bucket on Ground 146 in (371 cm)
Maximum Dump Angle 39 degrees
Maximum Overall Height 160 in (405 cm)
Maximum Reach – With Arms Parallel to Ground 54 in (137 cm)
Overall Height 13 ft (4 m)
Overall Length – Track 84 in (213 cm)
Overall Track Length 7 ft (2 m)
Rack Back Angle – Maximum Height 84 degrees
Reach – Maximum Lift/Dump 23 in (57 cm)
Reach at Max Lift and Dump 2 ft (1 m)
Turning Radius from Center – Bucket 89 in (226 cm)
Turning Radius from Center – Coupler 56 in (141 cm)
Vehicle Width (400 mm/15.7 in tracks) 76 in (193 cm)
Vehicle Width (450 mm/17.7 in tracks) 78 in (198 cm)
Width Over Tracks 6 ft (2 m)

Engine

Bore 4 in (9 cm)
Displacement 203 cu in (3,327 cu cm)
Engine Make DIT
Engine Model Cat C3.3B DIT (turbo)
Gross Power 74 hp (55 kw)
Gross Power – SAE J1995 74 hp (55 kw)
Net Power 73 hp (54 kw)
Net Power – ISO 9249 74 hp (55 kw)
Net Power – SAE 1349 73 hp (54 kw)
Peak Torque 196 lbs ft (265 nm)
Peak Torque – 1,500 rpm – SAE J1995 195 ft (59 m)
Stroke 5 in (12 cm)
Torque Measured @ 1500 rpm

Hydraulic System

Hydraulic Flow – High Flow XPS – Hydraulic Power (Calculated) 76 hp (57 kw)
Hydraulic Flow – High Flow XPS – Maximum Loader Hydraulic Flow 32 gpm (121 lpm)
Hydraulic Flow – Standard – Hydraulic Power (Calculated) 44 hp (33 kw)
Hydraulic Flow – Standard – Loader Hydraulic Pressure 3335 psi
Pump Flow 23 gpm (86 lpm)
Relief Valve Pressure 3335.9 psi

Loader

Breakout Force 7,284 lbs (3,304 kg)
Operating Load Rating 2,055 lbs (932 kg)
Operating Width 76 in (193 cm)
Tipping Load 5,871 lbs (2,663 kg)

Noise Level

Inside Cab* 83 dB(A)
Note (1) Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
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.
Outside Cab** 103 dB(A)

Operating Specifications

Alternator Supplied Amperage 80 amps
Breakout Force – Tilt Cylinder 7,285 lbs (3,304 kg)
Cooling System Fluid Capacity 4 gal (14 l)
Fuel Capacity 25 gal (94 l)
Ground Contact Area – With 400 mm/15.7 in Track 2,015 cu in (33,020 cu cm)
Ground Contact Area – With 450 mm/17.7 in Track 2,272 cu in (37,231 cu cm)
Ground Pressure – With 400 mm/15.7 in Track 4.9 psi
Ground Pressure – With 450 mm/17.7 in Track 4.4 psi
Hydraulic System Fluid Capacity 14 gal (52 l)
Max Speed – high range 7 mph (11 kph)
Max Speed – low range 5 mph (7 kph)
Operating Voltage 12 volts
Operating Weight 9,892 lbs (4,487 kg)
Rated Operating Capacities – 35% Tipping Load 2,055 lbs (932 kg)
Rated Operating Capacities – 50% Tipping Load 2,935 lbs (1,331 kg)
Rated Operating Capacity with Optional Counterweight 3,185 lbs (1,445 kg)
Tipping Load 5,870 lbs (2,663 kg)

Power Train

Travel Speed – Forward or Reverse – One Speed 5 mph (7 kph)
Travel Speed – Forward or Reverse – Two Speed 7 mph (11 kph)

Service Refill Capacities

Cooling System 4 gal (14 l)
Engine Crankcase 3 gal (11 l)
Fuel Tank 25 gal (94 l)
Hydraulic System 14 gal (52 l)
Hydraulic Tank 10 gal (39 l)

Undercarriage

Ground Contact Area 2,015 cu in (33,022 cu cm)
Ground Pressure 5 psi
Length of Track on Ground 5 ft (2 m)

Weights

Operating Weight 9,893 lbs (4,487 kg)
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