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Features

Efficient Hydraulics

Transparent schematic view of a knuckleboom loader with a centrally mounted green electronic control box, wiring harnesses, and sensor connections routed across the frame

Proven pressure-compensated load-sensing hydraulic system delivers power on demand for strong delimbing and loading performance, while minimizing hydraulic heat generation and reducing fuel consumption.  

Increase Uptime with Easy Access to Daily Service Points

Close-up of an internal knuckleboom loader compartment with metal housing, exposed engine components, filters, hoses, and a grated side panel

Daily service points are easily accessible, reducing time spent on maintenance. Features like hinged panels for the engine compartment, same-side fills for fuel and diesel exhaust fluid, and ground-level hydraulic access help in maintaining the machine with minimal effort.

Maximize Comfort and Visibility with a Spacious Cab

Interior of a knuckleboom loader cab showing a padded seat with armrest buttons, and dual joysticks, with stacked logs visible outside the window

The knuckleboom loader's redesigned cab maximizes operator comfort and visibility with enhancements like a large doorway, spacious interior, and superior ventilation. The cab-window features improve forward visibility, while the lower hood profile enhances the side views.

Specifications

Lift capacity (no heel, bare pin) with 4.6-m (15-ft) lift (radius is measured horizontally from centerline of rotation)

At 15-ft radius (lb)19753 lb.
At 4.6-m radius (kg)8960 kg
At 20-ft radius (lb)16446 lb.
At 6.1-m radius (kg)7460 kg
At 25-ft radius (lb)14286 lb.
At 7.6-m radius(kg)6480 kg
At 30-ft radius (lb)11927 lb.
At 9.1-m radius (kg)5410 kg

Engine

ManufacturerJohn Deere
Model6068 HTJ57 PowerTech™ PVS
Non-Road Emission StandardsEPA Final Tier 4/EU Stage IV
Cylinders6
Valves Per Cylinder4
Displacement (cu in.)415 cu in.
Displacement (L)6.8 L
Gross Rated Power At 2,000 RPM (hp)173 hp
Gross Rated Power At 2,000 RPM (kW)129 kW
Net Torque Rise (%)21 %
Net Peak Torque At 1,500 RPM (lb-ft)553 lb-ft
Net Peak Torque At 1,500 RPM (lb-ft)553 lb-ft
Net Peak Torque At 1,500 RPM (Nm)749.8 Nm
AspirationTurbocharged, air-to-air aftercooled
Air CleanerDry-type with safety element

Hydraulics

Main Pump TypeTandem variable-displacement, axial-piston, load-sensing system
Controls TypePilot levers, short stroke, low effort
Fill System Type12-volt electric-fill pump through return filter

Machine Dimensions

Tail swing (in.)28 in.
Tail swing (mm)711.2 mm
Machine height (ft in.)13, 6 ft, in.
Machine height (mm)4114.8 mm
Maximum stabilizer radius below grade (in.)10 in.
Maximum stabilizer radius below grade (mm)254 mm
Trailer height (ft in.)3, 2 ft, in.
Trailer height (mm)965.2 mm
Maximum trailer width (in.)35 in.
Maximum trailer width (mm)889 mm
Transport width (ft in.)8, 7 ft, in.
Transport width (mm)2616.2 mm
Stabilizer spread at ground level (ft in.)19, 1 ft, in.
Stabilizer spread at ground level (mm)5817 mm
Overall lower frame length (ft in.)13, 7 ft, in.
Overall lower frame length (mm)4140 mm
Stabilizer pad length (in.)21 in.
Stabilizer pad length (mm)533.4 mm
Boom radius (ft in.)32, 0 ft, in.
Boom radius (mm)9753.6 mm
Stabilizer pad width (in.)35 in.
Stabilizer pad width (mm)889 mm

Cylinders

Cylinders TypeHeat-treated, chrome-plated, polished cylinder rods; hardened steel (replaceable bushings) pivot pins
Boom (1) Bore (in.)7.1 in.
Boom (1) Bore (mm)180.3 mm
Boom (1) Rod Diameter (in.)3.7 in.
Boom (1) Rod Diameter (mm)94 mm
Jib (1) Bore (in.)6.3 in.
Jib (1) Bore (mm)160 mm
Jib (1) Rod Diameter (in.)3.7 in.
Jib (1) Rod Diameter (mm)94 mm
Stabilizers (4) Bore (in.)7 in.
Stabilizers (4) Bore (mm)180 mm
Stabilizers (4) Rod Diameter (in.)3.9 in.
Stabilizers (4) Rod Diameter (mm)100 mm

Serviceability

Service Points And FeaturesHinged engine side shields; local grease points; hydraulic “O”-ring face-seal connectors; ground-level hydraulic oil and filter changes; hydraulic oil electric fill-pump
Engine Oil Fluid-Change Interval (hours)500 hr
Hydraulic Oil Fluid-Change Interval (hours)2000 hr
Engine Coolant Fluid-Change Interval (hours)6000 hr
Swing-Drive Gearbox Oil Fluid-Change Interval (hours)1000 hr
Pump-Drive Gearbox Oil Fluid-Change Interval (hours)1000 hr
Fuel Tank Capacity (gal.)90 gal.
Fuel Tank Capacity (L)340.7 L
Diesel-Exhaust Fluid (DEF) Capacity (gal.)5 gal.
Diesel-Exhaust Fluid (DEF) Capacity (L)18.9 L
Cooling System Capacity (gal.)7.5 gal.
Cooling System Capacity (L)28.4 L
Engine Crankcase Capacity (gal.)5.3 gal.
Engine Crankcase Capacity (L)20.1 L
Hydraulic Tank Capacity (gal.)40 gal.
Hydraulic Tank Capacity (L)151.4 L
Swing-Drive Gearbox Capacity (gal.)1.4
Swing-Drive Gearbox Capacity (L)5.3 L
Pump-Drive Gear Case Capacity (gal.)1.4 gal.
Pump-Drive Gear Case Capacity (L)5.3 L

Electrical

Voltage (V)12 V
Number Of Batteries2
Battery Capacity At -17.8° C (CCA)950 CCA
Battery Capacity At 0° F (CCA)950 CCA
Battery Capacity At 32° F (CCA)1110 CCA
Battery Capacity At 0° C (CCA)1110 CCA
Alternator Rating (amp)200 amp
Lighting OptionsStandard halogen lights: 2 front / Optional halogen lights: 2 front, 3 rear, 1 cab right side, 1 cab left side; Optional LED lights: 4 front, 3 rear, 1 cab right side, 1 cab left side

Boom

Knuckleboom (ft, in)32, 0 ft, in.
Knuckleboom (m)9.8 m

Swing Mechanism

Swing Speed (RPM)10 rpm
Drive Type2-stage planetary gearbox with piston motor
Bearing TypeHardened gear, greaseable from cab
Swing Torque (lb-ft)38400 lb-ft
Swing Torque (Nm)52063.5 Nm

Lift capacity (no heel, bare pin) with 6.1-m (20-ft) lift (radius is measured horizontally from centerline of rotation)

At 15-ft radius (lb)16887 lb.
At 4.6-m radius (kg)7660 kg
At 20-ft radius (lb)15102 lb.
At 6.1-m radius (kg)6850 kg
At 25-ft radius (lb)13713 lb.
At 7.6-m radius (kg)6220 kg
At 30-ft radius (lb)8620 lb.
At 9.1-m radius (kg)3910 kg

Lift capacity (no heel, bare pin) with 1.5-m (5-ft) lift (radius is measured horizontally from centerline of rotation)

At 10-ft radius (lb)13625 lb.
At 3.1-m radius (kg)6180.2 kg
At 15-ft radius (lb)25860 lb.
At 4.6-m radius (kg)11730 kg
At 20-ft radius (lb)19158 lb.
At 6.1-m radius (kg)8690 kg
At 25-ft radius (lb)15322 lb.
At 7.6-m radius (kg)6850 kg
At 30-ft radius (lb)12280 lb.
At 9.1-m radius (kg)5570 kg

Log Grapple Specifications

Maximum Opening With 4048 Log Grapple (in.)48 in.
Maximum Opening With 4048 Log Grapple (mm)1219.2 mm
Minimum Opening With 4048 Log Grapple (in.)4 in.
Minimum Opening With 4048 Log Grapple (mm)101.6 mm
Maximum opening with 4552 log grapple (in.)52.2 in.
Maximum opening with 4552 log grapple (mm)1325.9 mm
Minimum opening with 4552 log grapple (in.)4.5 in.
Minimum opening with 4552 log grapple (mm)114.3 mm

Maximum lift capacity (no heel, bare pin) at maximum distance (radius is measured horizontally from centerline of rotation)

At 29.9-ft radius and 20-ft lift (lb)8102 lb.
At 9.1-m radius and 6.1-m lift (kg)3675 kg
At 31.4-ft radius and 15-ft lift (lb)7893 lb.
At 9.6-m radius and 4.6-m lift (kg)3580 kg
At 32-ft radius and 10-ft lift (lb)8378 lb.
At 9.8-m radius and 3.1-m lift (kg)3800.2 kg
At 31.8-ft radius and 5-ft lift (lb)8554 lb.
At 9.7-m radius and 1.5-m lift (kg)3880 kg

Lift capacity (no heel, bare pin) with 3.1-m (10-ft) lift (radius is measured horizontally from centerline of rotation)

At 10-ft radius (lb)19798 lb.
At 3.1-m radius (kg)8980.2 kg
At 15-ft radius (lb)23149 lb.
At 4.6-m radius (kg)10500 kg
At 20-ft radius (lb)17990 lb.
At 6.1-m radius (kg)8160 kg
At 25-ft radius (lb)14947 lb.
At 7.6-m radius (kg)6779.8 kg
At 30-ft radius (lb)12588 lb.
At 9.1-m radius (kg)5710 kg

Operating Weight (Less Attachment)

Operating Weight With Standard Equipment, Half-Full fuel Tank, All Fluids, 175-lb Operator, And Grapple (lb)40073 lb.
Operating Weight With Standard Equipment, Half-Full fuel Tank, All Fluids, 80-kg Operator, And Grapple (kg)18177 kg

Cooling

Fan TypeEngine-driven ECU-controlled viscous clutch