279D3 Compact Track Loader

Specifications

Benefits & Features

Equipment

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The Cat® 279D3 Compact Track Loader, with its radial lift design, delivers impressive mid-lift reach and excellent digging performance with outstanding drawbar power. Its standard, suspended undercarriage system provides superior traction, flotation, stability and speed to work in a wide range of applications and underfoot conditions.

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US
Metric

Engine

Gross Power - SAE J1995 74.3 HP 55.4 kW

Net Power - SAE 1349 72.9 HP 54.4 kW

Displacement 203.0 in³ 3.3 l

Bore 3.7 in 94.0 mm

Stroke 4.7 in 120.0 mm

Peak Torque - 1,500 rpm - SAE J1995 195.0 ft·lbf 265.0 N·m

Net Power 72.9 HP 54.4 kW

Gross Power 74.3 HP 55.4 kW

Engine Model Cat C3.3B DIT (turbo) Cat C3.3B DIT (turbo)

Net Power - ISO 9249 73.7 HP 54.9 kW

Operating Specifications

Rated Operating Capacities - 35% Tipping Load 2220.0 lb 1010.0 kg

Tipping Load 6345.0 lb 2885.0 kg

Breakout Force - Tilt Cylinder 7285.0 lb 3304.0 kg

Rated Operating Capacities - 50% Tipping Load 3170.0 lb 1445.0 kg

Ground Contact Area - With 450 mm/17.7 in Track 2272.0 in² 1.47 m²

Note Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 2036 mm (80 in) low profile 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). Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 2036 mm (80 in) low profile 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 Capacity with Optional Counterweight 3390.0 lb 1540.0 kg

Ground Pressure - With 450 mm/17.7 in Track 4.4 psi 30.4 kPa

Weights

Operating Weight 10095.0 lb 4579.0 kg

Dimensions

Length - Track on Ground 64.2 in 1630.0 mm

Overall Length - Track 83.8 in 2129.0 mm

Height - Top of Cab 83.2 in 2113.0 mm

Ground Clearance 8.9 in 226.0 mm

Departure Angle 32° 32°

Maximum Dump Angle 39° 39°

Bucket Pin Height - Carry Position 7.8 in 198.0 mm

Turning Radius from Center - Machine Rear 70.7 in 1796.0 mm

Turning Radius from Center - Coupler 55.5 in 1410.0 mm

Maximum Overall Height 159.5 in 4051.0 mm

Maximum Reach - With Arms Parallel to Ground 54.0 in 1373.0 mm

Turning Radius from Center - Bucket 88.8 in 2256.0 mm

Bucket Pin Height - Maximum Lift 124.9 in 3173.0 mm

Length - With Bucket on Ground 146.2 in 3714.0 mm

Length - Without Bucket 117.9 in 2995.0 mm

Reach - Maximum Lift/Dump 22.6 in 575.0 mm

Clearance at Maximum Lift and Dump 97.8 in 2485.0 mm

Vehicle Width (450 mm/17.7 in tracks) 78.0 in 1981.0 mm

Rack Back Angle - Maximum Height 84° 84°

Hydraulic System

Hydraulic Flow - Standard - Loader Hydraulic Pressure 3335.0 psi 23000.0 kPa

Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Flow 32.0 gal/min 121.0 l/min

Hydraulic Flow - Standard - Loader Hydraulic Flow 23.0 psi 86.0 kPa

Hydraulic Flow - Standard - Hydraulic Power (Calculated) 44.0 HP 33.0 kW

Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Pressure 4061.0 HP 28000.0 kW

Hydraulic Flow - High Flow XPS - Hydraulic Power (Calculated) 76.0 hp/PS 57.0 kPa

Cab

ROPS ISO 3471:2008 ISO 3471:2008

FOPS ISO 3449:2005 Level I ISO 3449:2005 Level I

Power Train

Travel Speed - Forward or Reverse - Two Speed 8.3 mile/h 13.3 km/h

Travel Speed - Forward or Reverse - One Speed 4.5 mile/h 7.2 km/h

Service Refill Capacities

Hydraulic System 13.7 gal (US) 52.0 l

Hydraulic Tank 10.3 gal (US) 39.0 l

Fuel Tank 27.7 gal (US) 105.0 l

Engine Crankcase 3.0 gal (US) 11.0 l

Cooling System 3.7 gal (US) 14.0 l

Air Conditioning System (if equipped)

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. 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 (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. **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.

Outside Cab*** 103.0 dB(A) 103.0 dB(A)

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. ***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** 83.0 dB(A) 83.0 dB(A)

Note (1) Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe. Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.

Quiet and Comfortable

The industry leading sealed and pressurized cab option provides the operator with a cleaner and quieter operating environment with excellent work tool visibility. Continuing the industry leading trend, the D3 Series also includes as standard, seat mounted adjustable joystick controls for operator comfort.

Maximum Performance

High performance power train provides maximum performance and production capability through the Electronic Torque Management system, standard two speed travel and an electronic hand/foot throttle with decel pedal capability.

Making Your Job Easier

Cat® “Intelligent Leveling” system provides industry leading technology, integration, and available features such as dual direction self level, work tool return to dig, and work tool positioner.

A Smooth Ride

A standard, fully independent torsion axle suspension combined with the optional Speed Sensitive Ride Control system improves operation on rough terrain, enabling better load retention, increased productivity and greater operator comfort.

Optimized Machine Capability

Maximize machine capability and control with the available Advanced Display, providing on-screen adjustments for implement response, hystat response and creep control. Also features multi-language functionality with customizable layouts, security system and rearview camera.

279D3 Standard Equipment

ELECTRICAL

12 volt Electrical System

80 ampere Alternator

Ignition Key Start/Stop Switch

Lights: Gauge Backlighting, Two Rear Tail Lights, Two Rear Halogen Working Lights, Two Adjustable Front Halogen Lights, Dome Light

Backup Alarm

Heavy Duty Battery, 850 CCA

OPERATOR ENVIRONMENT

Advanced Display with Rearview Camera: Full Color, 127 mm (5 in) LCD screen; Advanced Multi-operator Security System; On-screen Adjustments for Implement Response, Hystat Response, and Creep Control

Gauges: Fuel Level, Hour Meter

Operator Warning System Indicators: Air Filter Restriction, Alternator Output, Armrest Raised/Operator Out of Seat, Engine Coolant Temperature, Engine Oil Pressure, Glow Plug Activation, Hydraulic Filter Restriction, Hydraulic Oil Temperature, Park Brake Engaged, Engine Emission System

Adjustable Vinyl Seat

Fold In Ergonomic Contoured Armrest

Control Interlock System, when operator leaves seat or armrest raised: Hydraulic System Disables, Hydrostatic Transmission Disables, Parking Brake Engages

ROPS Cab, Open, Tilt Up

FOPS, Level I

Top and Rear Windows

Floor Mat

Interior Rearview Mirror

12 volt Electric Socket

Horn

Hand (Dial) Throttle, Electronic

Adjustable Joystick Controls

Anti-theft Security System with 6-button Keypad

Storage Compartment with Netting

POWER TRAIN

Cat C3.3B, Turbo Diesel Engine, Meeting Tier 4 Final and Stage V Emission Standards

Air Cleaner, Dual Element, Radial Seal

S·O·SSM Sampling Valve, Hydraulic Oil

Filters, Cartridge-type, Hydraulic

Filters, Canister-type, Fuel and Water Separator

Radiator/Hydraulic Oil Cooler (side-by-side)

Spring Applied, Hydraulically Released, Wet Multi Disc Parking Brakes

Hydrostatic Transmission, Two Speed Travel

Suspension – Independent Torsion Axles (4)

OTHER

Engine Enclosure, Lockable

Extended Life Antifreeze, –37° C (–34° F)

Machine Tie Down Points (6)

Support, Lift Arm

Hydraulic Oil Level Sight Gauge

Radiator Coolant Level Sight Gauge

Radiator, Expansion Bottle

Cat ToughGuard™ Hose

Auxiliary, Hydraulics, Continuous Flow

Heavy Duty, Flat Faced Quick Disconnects with Integrated Pressure Release

Split D-Ring to Route Work Tool Hoses Along Side of Left Lift Arm

Electrical Outlet, Beacon

Belly Pan Cleanout

Variable Speed Demand Fan

Product Link™ PL240, Cellular

MANDATORY EQUIPMENT

Hydraulics, Standard or High Flow XPS

Quick Coupler, Mechanical or Powered

High Visibility Seat Belt, 50 mm (2 in) or 75 mm (3 in)

Steel Imbed Rubber Track – 400 mm (15.7 in) or 450 mm (17.7 in)

Dual Flange Front Idler/Single Flange Rear Idler or Triple Flange Front/Rear Idlers

PERFORMANCE PACKAGES:
– Performance Package H1: Standard Flow Hydraulics (No Self Level)
– Performance Package H2: Standard Flow Hydraulics, Dual Direction Electronic Self Level (Raise and Lower), Work Tool Return to Dig, Work Tool Positioner, and Electronic Snubbing (Raise and Lower)
– Performance Package H3: High Flow XPS, Dual Direction Electronic Self Level (Raise and Lower), Work Tool Return to Dig, Work Tool Positioner, and Electronic Snubbing (Raise and Lower)

COMFORT PACKAGES:
– Open ROPS (C0): Static Seat (No Foot Throttle, Headliner, Heater or Door)
– Open ROPS (C1): Foot Throttle, Headliner, Cup Holder, and choice of Seat (Mechanical Suspension or High Back, Heated, Air Ride Seat) (No Heater or Door)
– Enclosed ROPS with Heater (C2): Foot Throttle, Headliner, Heater and Defroster, Side Windows, Cup Holder, Radio Ready, choice of Seat (Mechanical Suspension or High Back, Heated, Air Ride Seat) and Door (Glass or Polycarbonate)
– Enclosed ROPS with A/C (C3): C2 + Air Conditioner

279D3 Optional Equipment

OPTIONAL EQUIPMENT

Hand-Foot Style Controls

External Counterweights

Beacon, Rotating

Engine Block Heater – 120V

Oil, Hydraulic, Cold Operation

Paint, Custom

Heavy Duty Battery, 1,000 CCA

Product Link PL641, Cellular

Speed Sensitive Ride Control

Bluetooth® Radio with Microphone (AM/FM/Weather Band Receiver with USB and Auxiliary Input Jack)

279D3