279D3

279D3 Compact Track Loader

Cat® 279D3 Compact Track Loader

DESCRIPTION

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.

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.

Sustainability

  • The Cat® C3.3B engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 7% biodiesel FAME (fatty acid methyl ester). Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Cat® Extended Life Coolant and long-life HYDO Advanced hydraulic fluids not only reduce downtime but help decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Boost productivity with Cat technologies like work tool positioner, return to dig, and Cat Smart Attachments.
  • Save fuel and reduce your greenhouse gas emissions with efficiency features such as foot throttle pedal and cooling system demand fan.

  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

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)

Specs

Overview

Long Name:
279D3 Compact Track Loader
Name:
279D3
Brand:
Caterpillar
Status:
Current

Engine

Gross Power - SAE J1995
74.3 HP / 55.4 kW

Operating Specifications

Rated Operating Capacities - 35% Tipping Load
2220 lb / 1010 kg

Weights

Operating Weight
10095 lb / 4579 kg

Dimensions

Length - Track on Ground
64.2 in / 1630 mm
Overall Length - Track
83.8 in / 2129 mm
Height - Top of Cab
83.2 in / 2113 mm
Ground Clearance
8.9 in / 226 mm
Departure Angle
32°
Maximum Dump Angle
39°
Bucket Pin Height - Carry Position
7.8 in / 198 mm
Turning Radius from Center - Machine Rear
70.7 in / 1796 mm
Turning Radius from Center - Coupler
55.5 in / 1410 mm
Maximum Overall Height
159.5 in / 4051 mm
Maximum Reach - With Arms Parallel to Ground
54 in / 1373 mm
Turning Radius from Center - Bucket
88.8 in / 2256 mm
Bucket Pin Height - Maximum Lift
124.9 in / 3173 mm
Length - With Bucket on Ground
146.2 in / 3714 mm
Length - Without Bucket
117.9 in / 2995 mm
Reach - Maximum Lift/Dump
22.6 in / 575 mm
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 hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).
Clearance at Maximum Lift and Dump
97.8 in / 2485 mm
Vehicle Width (450 mm/17.7 in tracks)
78 in / 1981 mm
Rack Back Angle - Maximum Height
84°

Hydraulic System

Hydraulic Flow - Standard - Loader Hydraulic Pressure
3335 psi / 23000 kPa
Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Flow
32 gal/min / 121 l/min
Hydraulic Flow - Standard - Loader Hydraulic Flow
23 psi / 86 kPa
Hydraulic Flow - Standard - Hydraulic Power (Calculated)
44 HP / 33 kW
Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Pressure
4061 HP / 28000 kW
Hydraulic Flow - High Flow XPS - Hydraulic Power (Calculated)
76 HP / 57 kPa

Cab

ROPS
ISO 3471:2008
FOPS
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 l
Hydraulic Tank
10.3 gal (US) / 39 l
Fuel Tank
27.7 gal (US) / 105 l
Engine Crankcase
3 gal (US) / 11 l
Cooling System
3.7 gal (US) / 14 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.

Engine

Net Power - SAE 1349
72.9 HP / 54.4 kW
Displacement
203 in³ / 3.3 l
Bore
3.7 in / 94 mm
Stroke
4.7 in / 120 mm
Peak Torque - 1,500 rpm - SAE J1995
195 ft·lbf / 265 N·m
Net Power
72.9 HP / 54.4 kW
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.
Gross Power
74.3 HP / 55.4 kW
Engine Model
Cat C3.3B DIT (turbo)
Net Power - ISO 9249
73.7 HP / 54.9 kW

Operating Specifications

Tipping Load
6345 lb / 2885 kg
Breakout Force - Tilt Cylinder
7285 lb / 3304 kg
Rated Operating Capacities - 50% Tipping Load
3170 lb / 1445 kg
Ground Contact Area - With 450 mm/17.7 in Track
2272 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, 450 mm (17.7 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 lb / 1540 kg
Ground Pressure - With 450 mm/17.7 in Track
4.4 psi / 30.4 kPa

Weights

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 hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).

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