559C

Cat knuckleboom loaders are known for superior multifunction capability, excellent visibility and heavy-duty booms and structures. Now the Cat C Series knuckleboom loaders feature a new more fuel efficient power system, an upgraded hydraulic system for greater reliability and significantly more lift at full reach than previous models.


SPECIFICATIONS
Engine
Gross Power 174 HP
Engine Model Cat® C6.6 ACERT™ Tier 4 Interim
Gross Power - 1,800 rpm 174 HP


Weights
Operating Weight 34100 lb
Operating Weight - Less Grapple 34100 lb
Operating Weight - Without Grapple 34100 lb


Operating Specifications
Knuckleboom Length 32 ft
Swing Speed 11 r/min
Maximum Reach - Standard Boom 32 ft
Standard Knuckleboom Reach to Pin 32 ft
Swing Bearing - Diameter - Ball Path 43.5 in
Swing Torque 49173 ft-lb
Tail Swing 106 in


Service Refill Capacities
Hydraulic Tank 80 gal (US)
Fuel Tank 100 gal (US)
Cooling System 7.5 gal (US)
Engine Oil 4 gal (US)
Swing Drive 1 gal (US)


Hydraulic System
Cylinders - Main two
Cylinders - Stick one
Hydraulic Pressure - Swing 3500 psi
Hydraulic Pressure - System 3500 psi
Cylinders - Stabilizers four
Hydraulic Oil Flow at 1,800 rpm 230/174 L (60/46 gal)


Dimensions
Stabilizer Pad Size 508 × 711 mm (20 × 28 in)
Stabilizer Reach Below Grade 17 in
Stabilizer Spread - Maximum Down Reach 166.8 in
Stabilizer Spread - Grade 187.3 in
Height - Top of Cab 157.6 in


Standards
OFPS cab meets SAE J2267


Shipping Dimensions - Mounted Trailer
Height 157.6 in
Width 101.3 in


BENEFITS & FEATURES
Hydraulics



Power Train



Operator Station



Electronics



Structure and Subframe



Boom and Stick



Grapples



Delimber/Slasher Package



Owning and Operating Costs



Serviceability



Customer Support



Sustainability



EQUIPMENT
Standard Equipment

ELECTRICAL
  • 24V system
  • Master disconnect
  • Circuit breaker protection
  • 95 Amp alternator
  • Two (2) 12V maintenance free batteries
  • Standard lighting package: - Two (2) cab mounted halogen light fixtures
  • Electronic engine/machine monitoring system
  • Two (2) 12V power points
  • 20 circuit electric swivel
OPERATOR ENVIRONMENT
  • Cab with swing out front window guard (meets SAE J2267)
  • Isolation mountings
  • Dual joystick control (pilot hydraulic actuation) with foot pedal swing
  • Electric stabilizer controls
  • Integrated trailer landing gear control
  • Pilot shut-off button
  • Push button throttle control
  • Reverse slope windshield
  • Skylight
  • Tinted safety glass
  • Sunshade - dual position for front window/skylight
  • High back suspension seat with lumbar support
  • High capacity AC/heater system with outside air intake
  • Defroster fan
  • Windshield wiper/washer
  • Dome light
  • Horn
  • Radio ready - includes speakers and AM/FM antennas
  • CB Radio ready - includes mounting bracket, power and ground wires, antenna cable and antenna mount bracket
  • Product Link ready
  • Cup holder
  • Fire extinguisher mounting bracket
  • Diagnostic port
  • Cell phone storage tray
POWER TRAIN
  • Cat C6.6 ACERT engine meets U.S. EPA Tier 4 Interim/EU Stage IIIB emission standards
  • Electric fuel priming pump
  • Air precleaner
  • 2-stage air cleaner
  • Enlarged cooling package with isolated cores
  • 378 L (100 U.S. gal) fuel tank
  • Fuel water separator
  • Variable speed fan
HYDRAULICS
  • Twin 140 cm3 (8.54 in3) variable displacement pumps
  • Excavator style “Negacon” system
  • Bar slasher/delimber hydraulic package
  • 302 L (80 U.S. gal) hydraulic tank
  • Electric hydraulic oil fill pump
STRUCTURE AND SUBFRAME
  • Fabricated heavy-duty, extended length center mount subframe
  • Flat top subframe deck with bolt-on skid resistant fenders
  • Bolt-on subframe ladder
BOOMS AND STICKS
  • 9.8 m (32 ft) reach knuckleboom
  • 229 mm (9 in) grapple mounting knuckle
ANTIFREEZE
  • 50% concentration extended life coolant

Optional Equipment

DS SYSTEMS
  • Non-suspension trailer with hydraulic landing gear
  • Suspension trailer with hydraulic landing gear
  • CTR 320 three-knife delimber
  • CTR 426 four-knife delimber
OTHER EQUIPMENT
  • Cat Product Link
  • AM/FM/CD/Satellite radio receiver
  • Long-range front lights on cab
  • Engine compartment lights
  • Additional subframe ladders
  • Auxiliary light package
  • Slasher port adapter fittings
  • Single “V” and double “VV” bolt on heels
  • Single “V” extended and double “VV” extended bolt on heels
  • 305 mm (12 in) grapple mounting knuckle
  • Grapples

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