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Overview

Cat® trailer-mount knuckleboom loaders feature hydraulic systems that provides smooth performance and fuel efficiency. High swing torque, swing speed and lift capacity reduce cycle times and lower cost per ton. The heavy-duty booms and structures provide reliable operation and reduce service costs. Spacious work stations, excellent visibility, and ergonomic controls reduce operator fatigue, resulting in a more productive shift. A wide range of machine sizes with optional factory installed hydraulic packages are available to increase loader utilization. Options include bar slasher, circle saw slasher, delimber, carrier and grapple saw.

Engine

Units:
Gross Power 173.0 mm H2O 129.9 kg/mm Less
Cat® Diesel Engines C6.6 Tier 3 C6.6 Tier 3 Less
Engine RPM - Rated 2200.0 r/min 2200.0 r/min Less

Weights

Operating Weight 32200.0 lb 14605.0 kg Less
Counterweight 1400.0 lb 635.0 kg Less
Operating Weight* 32200.0 lb 14605.0 kg Less

Operating Specifications

Knuckleboom Length 32.0 ft 9.8 m Less
Stabilizers (4) - Pad Size 55.8 cm × 71 cm (22 in × 28 in) 55.8 cm × 71 cm (22 in × 28 in) Less
Swing Bearing - Diameter - OD 51.0 in 129.5 cm Less

Service Refill Capacities

Fuel 100.0 gal (US) 379.0 l Less
Hydraulic 80.0 gal (US) 302.8 l Less

Hydraulic System

Flows at Rated Speed 110.0 gal/min 416.0 l/min Less
Swing Speed 11.0 r/min 11.0 r/min Less
System Pressure 3500.0 psi 24131.0 kPa Less

Operator Station

Hydraulic Packages

Complete Customer Care

Complete Customer Care

Complete Customer Care

Complete Customer Care

Complete Customer Care

Complete Customer Care

559 Standard Equipment

ENGINES AND DRIVE LINE
  • Cat® C6.6 129.8 kW (173 hp) Tier 3 Compliant
  • Electrical
  • Pump Drive

OPERATORS STATION
  • 97.8 cm × 142.2 cm (38.5 in × 56 in) Right Side Mounted with Isolation Pads
  • Tinted Safety Glass Windows, Lexan Skylight, Sun Visor
  • Fully Adjustable Seat with Fold-up Armrest
  • Operator Protection Guard
  • Pressurized Cab with Heat/Air Conditioning
  • Integral Heat/AC Ductwork
  • Analog Gauges
  • Windshield Wiper/Washer
  • Horn
  • Defroster Fan
  • 12V Power Point
  • Dome Light
  • Fire Extinguisher
  • Sliding Cab Window
  • Radio Ready (Speakers, AM/FM Antenna)

HYDRAULIC SYSTEM
  • Two Variable Displacement Axial Piston Pumps, Pilot Pump
  • Dedicated Circle Saw Piston Pump – 246 L/min (65 gpm)
  • Controls
  • Filtration
  • Swivel
  • Serviceability
  • Auxiliary Hydraulics

STRUCTURAL
  • Grapple Mounting Knuckle
  • Lower Frame
  • Turntable Mounting

559 Optional Equipment

ENGINES AND DRIVE LINE
  • Electrical

OPERATORS STATION
  • AM/FM/CD Radio/Satellite Radio

STRUCTURAL
  • Boom
  • Heels
  • Grapple Mounting Knuckle
  • DS Package with Standard Trailer
  • DS Package with Hydraulic Trailer

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