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279D3 Compact Track Loader

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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SPECIFICATION SUMMARY
  • Gross Power - SAE J1995 74.3 HP
  • Rated Operating Capacities - 35% Tipping Load 2220 lb
  • Operating Weight 10095 lb
  • Length - Track on Ground 64.2 in

PRICE (USD)
Call 800-637-5000 for rate information

Engine

  • Gross Power - SAE J1995
    74.3 HP
  • Net Power - SAE 1349
    72.9 HP
  • Displacement
    203 in³
  • Bore
    3.7 in
  • Stroke
    4.7 in
  • Peak Torque - 1,500 rpm - SAE J1995
    195 ft·lbf
  • Net Power
    72.9 HP
  • Gross Power
    74.3 HP
  • Engine Model
    Cat C3.3B DIT (turbo)
  • Net Power - ISO 9249
    73.7 HP
  • Note
    Net power advertised is the power available at the flywheel when the engine is equipped with alternator, air cleaner, muffler/aftertreatment and cooling fan.

Operating Specifications

  • Rated Operating Capacities - 35% Tipping Load
    2220 lb
  • Tipping Load
    6345 lb
  • Breakout Force - Tilt Cylinder
    7285 lb
  • Rated Operating Capacities - 50% Tipping Load
    3170 lb
  • Ground Contact Area - With 450 mm/17.7 in Track
    2272 in²
  • 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, 450 mm (17.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydr
  • Rated Operating Capacity with Optional Counterweight
    3390 lb
  • Ground Pressure - With 450 mm/17.7 in Track
    4.4 psi

Weights

  • Operating Weight
    10095 lb
  • 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, 450 mm (17.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydr

Dimensions

  • Length - Track on Ground
    64.2 in
  • Overall Length - Track
    83.8 in
  • Height - Top of Cab
    83.2 in
  • Ground Clearance
    8.9 in
  • Departure Angle
    32°
  • Maximum Dump Angle
    39°
  • Bucket Pin Height - Carry Position
    7.8 in
  • Turning Radius from Center - Machine Rear
    70.7 in
  • Turning Radius from Center - Coupler
    55.5 in
  • Maximum Overall Height
    159.5 in
  • Maximum Reach - With Arms Parallel to Ground
    54 in
  • Turning Radius from Center - Bucket
    88.8 in
  • Bucket Pin Height - Maximum Lift
    124.9 in
  • Length - With Bucket on Ground
    146.2 in
  • Length - Without Bucket
    117.9 in
  • Reach - Maximum Lift/Dump
    22.6 in
  • 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, 450 mm (17.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydr
  • Clearance at Maximum Lift and Dump
    97.8 in
  • Vehicle Width (450 mm/17.7 in tracks)
    78 in
  • Rack Back Angle - Maximum Height
    84°

Hydraulic System

  • Hydraulic Flow - Standard - Loader Hydraulic Pressure
    3335 psi
  • Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Flow
    32 gal/min
  • Hydraulic Flow - Standard - Loader Hydraulic Flow
    23 psi
  • Hydraulic Flow - Standard - Hydraulic Power (Calculated)
    44 HP
  • Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Pressure
    4061 HP
  • Hydraulic Flow - High Flow XPS - Hydraulic Power (Calculated)
    76 HP

Cab

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

Power Train

  • Travel Speed - Forward or Reverse - Two Speed
    8.3 mile/h
  • Travel Speed - Forward or Reverse - One Speed
    4.5 mile/h

Service Refill Capacities

  • Hydraulic System
    13.7 gal (US)
  • Hydraulic Tank
    10.3 gal (US)
  • Fuel Tank
    27.7 gal (US)
  • Engine Crankcase
    3 gal (US)
  • Cooling System
    3.7 gal (US)

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.

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 spe
  • Outside Cab***
    103 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.
  • Inside Cab**
    83 dB(A)
  • Note (1)
    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.

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 PL243, 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 – 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

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)
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