Manufactured By: Caterpillar
Category: Compact Track Loader
Model Number: 279D
| Make | Caterpillar |
| Model | 279D |
| Type | Compact Track Loader |
| Standard Flow | 23 GPM |
| High Flow | 32 GPM |
| Pressure | 3335PSI PSI |
| Hydraulic HP Standard Flow | 44. HP |
| Hydraulic HP High Flow | 62.3 HP |
| Engine HP | 72. HP |
| Width | 78 in. |
| Lift Capacity at 35% | 2054.5 lb. |
| Lift Capacity at 50% | 2935 lb. |
| Operating Weight | 9893 lb. |
| Tire Size |
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 | 7.8 in (20 cm) |
| Bucket Pin Height – Maximum Lift | 10.5 ft (3 m) |
| Clearance at Max Lift and Dump | 8.2 ft (3 m) |
| Clearance at Maximum Lift and Dump | 97.8 in (248 cm) |
| Departure Angle | 32 ° |
| Dump angle | 39 ° |
| Ground Clearance | 8.9 in (23 cm) |
| Height – Top of Cab | 7 ft (2 m) |
| Length – Track on Ground | 64.2 in (163 cm) |
| Length – with Bucket | 12.2 ft (4 m) |
| Length – With Bucket on Ground | 146.2 in (371 cm) |
| Length – Without Bucket | 117.9 in (299 cm) |
| Length – without Bucket | 9.9 ft (3 m) |
| Maximum Dump Angle | 39 ° |
| Maximum Overall Height | 159.5 in (405 cm) |
| Maximum Reach – With Arms Parallel to Ground | 54 in (137 cm) |
| Note | # |
| Overall Height | 13.2 ft (4 m) |
| Overall Length – Track | 83.8 in (213 cm) |
| Overall Track Length | 7 ft (2 m) |
| Rack Back Angle – Maximum Height | 84 ° |
| Reach – Maximum Lift/Dump | 22.6 in (57 cm) |
| Reach at Max Lift and Dump | 1.9 ft (1 m) |
| Turning Radius from Center – Bucket | 88.8 in (226 cm) |
| Turning Radius from Center – Coupler | 55.5 in (141 cm) |
| Turning Radius from Center – machine rear | 70.8 in (180 cm) |
| Turning Radius from Center – Machine Rear | 70.7 in (180 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 | 6.4 ft (2 m) |
Engine
| Bore | 3.7 in (9 cm) |
| Displacement | 203 cu in (0 m) |
| Engine Make | DIT |
| Engine Model | Cat C3.3B DIT (turbo) |
| Gross Power | 74.3 hp (55 kw) |
| Gross Power – SAE J1995 | 74.3 hp (55 kw) |
| Net Power | 72.9 hp (54 kw) |
| Net Power – ISO 9249 | 73.7 hp (55 kw) |
| Net Power – SAE 1349 | 72.9 hp (54 kw) |
| Peak Torque | 195.5 lbs/ft |
| Peak Torque – 1,500 rpm – SAE J1995 | 195 ft lbs (89 kg) |
| Stroke | 4.7 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 gal/min (121 l/min) |
| Hydraulic Flow – Standard – Hydraulic Power (Calculated) | 44 hp (33 kw) |
| Hydraulic Flow – Standard – Loader Hydraulic Pressure | 3335 psi |
| Pump Flow | 22.8 gal/min (86 l/min) |
| Relief Valve Pressure | 3335.9 psi |
Loader
| Breakout Force | 7284.1 lbs (3,304 kg) |
| Operating Load Rating | 2055 lbs (932 kg) |
| Operating Width | 76 in (193 cm) |
| Tipping Load | 5871 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 A |
| Breakout Force – Tilt Cylinder | 7285 lbs (3,305 kg) |
| Cooling System Fluid Capacity | 3.7 gal (14 l) |
| Fuel Capacity | 24.9 gal (94 l) |
| Ground Contact Area – With 400 mm/15.7 in Track | 2015 cu in (0 m) |
| Ground Contact Area – With 450 mm/17.7 in Track | 2272 cu in (0 m) |
| 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 | 13.8 gal (52 l) |
| Max Speed – high range | 7.1 mph (11 kph) |
| Max Speed – low range | 4.5 mph (7 kph) |
| Note | # |
| Operating Voltage | 12 V V |
| Operating Weight | 9892.2 lbs (4,487 kg) |
| Rated Operating Capacities – 35% Tipping Load | 2055 lbs (932 kg) |
| Rated Operating Capacities – 50% Tipping Load | 2935 lbs (1,331 kg) |
| Rated Operating Capacity with Optional Counterweight | 3185 lbs (1,445 kg) |
| Tipping Load | 5870 lbs (2,663 kg) |
Power Train
| Travel Speed – Forward or Reverse – One Speed | 4.5 mph (7 kph) |
| Travel Speed – Forward or Reverse – Two Speed | 7 mph (11 kph) |
Service Refill Capacities
| Cooling System | 3.7 gal (14 l) |
| Engine Crankcase | 3 gal (11 l) |
| Fuel Tank | 24.8 gal (94 l) |
| Hydraulic System | 13.7 gal (52 l) |
| Hydraulic Tank | 10.3 gal (39 l) |
Undercarriage
| Ground Contact Area | 2015.1 cu in (0 m) |
| Ground Pressure | 5 psi |
| Length of Track on Ground | 5.4 ft (2 m) |
Weights
| Note | # |
| Operating Weight | 9893 lbs (4,487 kg) |