Caterpillar

279D3 Compact Track Loader

Name: 279D3 Compact Track Loader
Brand: Caterpillar

Gross Power – SAE J1995

74.3 HP

55.4 kW

Rated Operating Capacities – 35% Tipping Load

2220 lb

1010 kg

Operating Weight

10095 lb

4579 kg

Overview

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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Overview

Features and Benefits

Daily Maintenance

Track Maintenance and Adjustment

Experience What You Inspired

D3 Series Skid Steer and Compact Track Loaders

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Features

Quiet and Comfortable

Maximum Performance

Making Your Job Easier

A Smooth Ride

Optimized Machine Capability

Sustainability

Specifications

US Metric

Engine

Spec	Value
Gross Power – SAE J1995	74.3 HP 55.4 kW
Net Power – SAE 1349	72.9 HP 54.4 kW
Displacement	203 in³ 3.3 cm³
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. 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) Cat C3.3B DIT (turbo)
Net Power – ISO 9249	73.7 HP 54.9 kW

Operating Specifications

Spec	Value
Rated Operating Capacities – 35% Tipping Load	2220 lb 1010 kg
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). 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

Spec	Value
Operating Weight	10095 lb 4579 kg
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). 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).

Dimensions

Spec	Value
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° 32°
Maximum Dump Angle	39° 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). 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° 84°

Hydraulic System

Spec	Value
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

Spec	Value
ROPS	ISO 3471:2008 ISO 3471:2008
FOPS	ISO 3449:2005 Level I ISO 3449:2005 Level I

Power Train

Spec	Value
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

Spec	Value
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)

Spec	Value
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

Spec	Value
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 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. *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. Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.

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)