551

A robust, reliable undercarriage utilizes proven components, customized for the most rugged forestry conditions. The unique boom design provides industry leading lift capacity throughout full reach range, a benefit in large timber. Three models are available with just the right horsepower, track size and hydraulic configurations to fit your application needs.


SPECIFICATIONS
Engine
Gross Power 305 HP
Engine Model Cat® C9 ACERT™
Rated Power 282 HP
Displacement 537 in³


Operating Specifications
Maximum Reach - With Attachment 28.2 ft
Maximum Reach - With Attachment - Track Harvester Configuration 37 ft
Maximum Drawbar Pull 101540 lb
Bare Pin Lift at Maximum Reach - Without Attachment 9400 kg (21,800 lb) @ 6.6 m (21.5 ft)
Bare Pin Lift at Maximum Reach - Without Attachment - Track Harvester Configuration 5000 kg (11,000 lb) @ 10.7 m (35 ft)
Bare Pin Lift at Maximum Reach - Without Attachment - Long Felling Linkage 7400 kg (16,300 lb) @ 8.2 m (27 ft)


Track
Undercarriage Size 345 HEX
Undercarriage Pitch 8.5 in
Track Gauge 2591-2870 mm (102-113 in)
Track Length 193 in
Ground Clearance 35 in
Number of Rollers 9 per side
Tractive Effort 104000 lb


Hydraulic System
Pump Size - Travel Circuit 110 gal/min
Pump Size - Boom, Implements 110 gal/min
Pump Size - Saw Motor 30 gal/min


Service Refill Capacities
Fuel Tank 312 gal (US)
Cooling System 16.1 gal (US)
Engine Oil 10.3 gal (US)
Hydraulic Tank 85.3 gal (US)
Hydraulic System 97.7 gal (US)
Swing Drive 2.64 gal (US)


Weights
Operating Weight - Without Attachment 68468 lb
Operating Weight - Without Attachment - Track Harvester Configuration 69175 lb
Operating Weight - With Attachment - Track Harvester Configuration - Long Felling Linkage 79339 lb


Dimensions
Shipping Length - With Attachment 461 in
Shipping Length - Without Attachment 371 in
Height 144 in
Width 1 131 in
Width 2 142 in


Dimensions - Track Harvester Configuration
Shipping Length - Without Attachment 536 in
Height - Without Attachment 144 in
Width 1 - Without Attachment 131 in
Width 2 - Without Attachment 142 in


BENEFITS & FEATURES
Powertrain



Hydraulic Packages



Operator Comfort



Leveling System



Undercarriage



Boom and Stick



Versatility



Owning and Operating Costs



Serviceability



Customer Focus



EQUIPMENT
Standard Equipment

Electrical
  • 24-volt electrical system
  • 2-12 volt maintenance free batteries
  • 95 Amp alternator
  • IQAN programmable controls
  • MDL large screen display
Guards
  • Twin hydraulically actuated hinged engine enclosure with warning alarm
  • Engine fan guard
  • Bottom guards
  • Isolation mounted cab and engine
  • Heavy duty radiator guard door
Operator Environment
  • OPS/FOPS/ROPS cab
  • Dual joystick control
  • Reverse slope windshield
  • Air ride seat
  • Skylight - alternate escape hatch
  • Top escape hatch
  • 3 inch retractable seat belt
  • Heater/air conditioner w/climate control
  • DIN mount radio ready with speakers
  • Operator sound suppression to standards
  • Travel alarm
  • Cup holders (2)
  • 2-12 volt and 1-24 volt power outlets
  • Front Window, 1.25 in Thick Margard
Powertrain
  • C9 ACERT engine meets Tier 2 emissions requirements
  • Infinitely variable travel speed
  • Under hood centrifugal precleaner and primary air filter
  • Heavy-duty cooling package
  • Electric fuel priming pump
Undercariage
  • Track roller guards with access holes
  • Hydraulic track adjusters
  • Double flange bottom rollers
  • Caterpillar® 330 HEX bolted, non-leveling carbody, variable gauge
  • Caterpillar 345 undercarriage bolted, variable gauge non-leveling carbody, GFT 110 final drives
Other Standard Equipment
  • Vandalism protection
  • Spare hose storage area
  • Storage area
  • Flexxaire™ Fan
  • Fuel water separator
  • 312 US gallon fuel tank
Hydraulics
  • Dedicated fixed displacement pilot pump
  • Dedicated variable displacement pumps for track and implement functions
  • 30 gpm variable displacement saw pump
  • Cat® 325C swing drive and swing motor
  • Electric hydraulic oil fill pump
  • 84 US gal hydraulic tank
Antifreeze
  • 50% concentration extended life coolant

Optional Equipment

Track Systems
  • 24" SG pads, clipped corners, with mud/snow reliefs
  • 28" SG pads, clipped corners, with mud/snow reliefs
  • Star carrier Rollers
  • Standard Single Flange carrier Rollers
Other Equipment
  • Starting Aid, Cold Weather
  • Starting Aid, Arctic - Includes engine and hydraulic heaters
Field Installed Attachments
  • CD Player with AM/FM Stereo – remote capable
  • Skylight, peaked, removable
  • Loose Linkage Arrangements

CONNECT. DISCUSS. SOLVE.
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