Studio image with a front left view of a 959MH Tracked Harvester

959MH

The John Deere 959MH Track Harvester offers unmatched precision and efficiency in forestry operations through its advanced features like JDLinkâ„¢ telematics for real-time machine monitoring, TimberMaticâ„¢ Maps for optimized job site visualization, and a powerful and efficient John Deere PowerTechâ„¢ PSS 9.0L engine, all designed to boost productivity and operator comfort even in the toughest terrains.

Key Features:
  • Net Power: 246 kW (330 hp) at 1,900 rpm
  • Max. Boom Reach: 10.34 m (33 ft. 11 in.)
  • Tractive Effort: 373 kN (83,880 lbf)
  • Intelligent Boom Control (IBC) Enables Precise Boom Movements
Operate in Comfort
Inside cab view of man in florescent vest and safety helmet operating a tracked feller buncher in a snowy forest

A large and spacious operator station features a floor-to-ceiling front window, ergonomic controls, and increased cab volume over prior models. It enhances operator comfort, which is crucial for maintaining high productivity during long operating hours.

Intelligent Boom Control
Side view of a tracked excavator equipped with articulated boom and mulching head, illustrating horizontal reach (A–B) and vertical movement range (C–D)

The Intelligent Boom Control (IBC) system enhances precision and efficiency by automating boom movements. With IBC, operators use a single lever to control the head direction, while the system manages boom and cylinder movements, making operations smoother and reducing operator fatigue.

TimberMaticâ„¢ Maps and TimberManagerâ„¢
A rugged touchscreen monitor displaying a GPS field map with highlighted rows, guidance paths, and machine location

TimberMaticâ„¢ Maps offers a real-time production view, optimized routes, and shared machine connectivity, enhancing jobsite awareness. TimberManagerâ„¢ allows web-based jobsite monitoring, enabling progress tracking and fleet optimization to streamline communication and boost efficiency.

Description: 959MH
Key Specs
ManufacturerJohn Deere
ModelPowerTechâ„¢ PSS 9.0L
Displacement549 cu in.
Peak Power330 hp
ManufacturerJohn Deere
ModelPowerTechâ„¢ PSS 9.0L
Displacement549 cu in.
Peak Power330 hp
Hydraulics TypeClosed center, pressure compensated, load sense
Travel Speed - High, Forward and Reverse2.2 mph
Travel Speed - Low, Forward and Reverse1 mph
Harvesting Boom Size, With Thru-Nose Cradle33.9 ft
Harvesting Boom Size, With Thru-Nose Cradle33.9 ft
Approximate Weight of Base Machine81.19 lb.
Approximate Weight of Base Machine79.45 lb.
Boom Length29.9 ft
Lift Capacity, Bare Pin at Full Reach13600 lb.
Boom Length33.9 ft
Lift Capacity, Bare Pin at Full Reach10720 lb.
Final Tier 4/EU Stage V Engine
ManufacturerJohn Deere
ModelPowerTechâ„¢ PSS 9.0L
Non-Road Emission StandardsEPA Final Tier 4/EU Stage V
Displacement549 cu in.
Speed Peak Power1900 rpm
Peak Power330 hp
Speed Net Peak Torque1500 rpm
Net Peak Torque1126 lb-ft
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine
ManufacturerJohn Deere
ModelPowerTechâ„¢ PSS 9.0L
Non-Road Emission StandardsEPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II
Displacement549 cu in.
Speed Peak Power1900 rpm
Peak Power330 hp
Speed Net Peak Torque1500 rpm
Net Peak Torque1126 lb-ft
Cooling
Fan TypeSuction type, hydraulically driven, variable speed, reversing
Hydraulics
Hydraulics TypeClosed center, pressure compensated, load sense
Main Pump TypeVariable-displacement axial piston
Main Pump Maximum Rated Flow131 gpm
Attachment Pump TypeDedicated variable-displacement axial piston
Attachment Pump Maximum Rated Flow55 gpm
Oil Filtration2 main return filters, 10-micron return with bypass, 1 case-drain strainer, 25 micron
Final Tier 4/EU Stage V Electrical
Voltage24 V
Number of Batteries2
Voltage Per Battery12 V
Alternator Rating150 amp
Work LightsLED (124)
Service LightsLED (2)
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical
Voltage24 V
Number of Batteries2
Voltage Per Battery12 V
Alternator Rating100-amp standard / 150-amp optional
Work LightsLED (124)
Service LightsLED (2)
Undercarriage
TypeIntegral track guides, thick high-abrasion-resistant material, ramp angles, hydraulic track adjustment
Track SizeU7L Extreme Duty (EXD)
Track Chain8.5 in.
Number of Track Links Per Side47
Lower Rollers Per Side10
Carrier Slides/Rollers Per Side2
Travel Speed - High, Forward and Reverse2.2 mph
Travel Speed - Low, Forward and Reverse1 mph
Tractive Effort83880 lbf
Final Tier 4/EU Stage V Undercarriage
TypeIntegral track guides, thick high abrasion resistant material, ramp angles, hydraulic track adjustment
SizeU7L ExD LC
Track Chain8.5 in.
Number of Track Links Per Side50
Lower Rollers Per Side11
Carrier Slides/Rollers Per Side3
Travel Speed - High, Standard Travel, Forward and Reverse2.4 mph
Travel Speed - Low, Standard Travel, Forward and Reverse1.2 mph
Tractive Effort, Standard Travel85.877 lbf
Rotating Upper (Standard Swing System)
Swing Speed Maximum4.8 rpm
Swing Torque81260 lb-ft
Swing Brake TypeSealed wet multi-disc, manually applied/released
Final Tier 4/EU Stage V Serviceability
Fuel Tank285 gal.
Diesel-Exhaust Fluid (DEF) Tank11 gal.
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Serviceability
Fuel Tank285 gal.
Final Tier 4/EU Stage V Ground Pressure
Conditions for Measuring Ground PressureIncludes standard equipment, 8.84m Boom w/ RCS, STD Travel, Medium Extended Counterweight, half full fuel tank, all fluids, less attachment
Undercarriage SizeU7L EXD LC
Counterweight SizeMedium
Harvesting Boom Size, With Thru-Nose Cradle33.9 ft
Double Grouser Ground Pressure With 24-in. Track10.2 psi
Single Grouser Ground Pressure With 24-in. Track10.1 psi
Single Grouser Ground Pressure With 28-in. Track8.8 psi
Single Grouser Ground Pressure With 600mm Track67.2 kPa
Single Grouser Ground Pressure With 24-in. Track9.7 psi
Single Grouser Ground Pressure With 700mm Track57.9 kPa
Single Grouser Ground Pressure With 28-in. Track8.4 psi
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Ground Pressure
Conditions for Measuring Ground PressureIncludes standard equipment, half-full fuel tank, and all fluids, less attachment
Undercarriage SizeU7L EXD
Counterweight SizeMedium
Harvesting Boom Size, With Thru-Nose Cradle33.9 ft
Double Grouser Ground Pressure With 24-in. Track10.5 psi
Single Grouser Ground Pressure With 24-in. Track10.4 psi
Single Grouser Ground Pressure With 28-in. Track9 psi
Final Tier 4/EU Stage V Operating Weight
Conditions for Measuring Operating WeightIncludes standard equipment, 610-mm (24 in.) single-grouser tracks, flat skylight, half-full fuel tank, and all fluids, less attachment
Undercarriage SizeU7L EXD LC
Counterweight SizeMedium
Harvesting Boom Size, With Thru-Nose Cradle29 ft
Approximate Weight of Base Machine81.19 lb.
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Operating Weight
Conditions for Measuring Operating WeightIncludes standard equipment, 610-mm (24 in.) single-grouser tracks, flat skylight, half-full fuel tank, and all fluids, less attachment
Undercarriage SizeU7L EXD
Counterweight SizeMedium
Harvesting Boom Size, With Thru-Nose Cradle29 ft
Approximate Weight of Base Machine79.45 lb.
Boom Performance - Configuration 1
Boom Length29.9 ft
Swath17.8 ft
Harvesting Head UsedHTH624C
Lift Capacity, Bare Pin at Full Reach13600 lb.
Lift Capacity, Bare Pin at 25 ft18130 lb.
Boom Performance - Configuration 2
Boom Length33.9 ft
Swath20.1 ft
Harvesting Head UsedHTH623C
Lift Capacity, Bare Pin at Full Reach10720 lb.
Lift Capacity, Bare Pin at 25 ft16100 lb.
Lift Capacity, Bare Pin at 30 ft12790 lb.
Machine Dimensions
Standard Undercarriage SizeU7L EXD
Overall Height With 29.9-ft Boom - Top of Cab With Flat Skylight13, 3
Overall Height With 29.9-ft Boom - Top of Cab With Peaked Skylight13, 11
Overall Height With 29.9-ft Boom - Top of Boom, Extended, Attachment Vertical13, 4
Overall Track Length16, 1 ft, in.
Track Length, Idler to Sprocket Center12, 6
Tail Swing, From Swing Center10, 5
Maximum Boom Reach to Attachment Pin With 29.9-ft Boom29, 11
Minimum Boom Reach to Attachment Pin With 29.9-ft Boom12, 1
Cutting Swath With 29.9-ft Boom17, 10
Maximum Boom Reach to Attachment Pin With 33.9-ft Boom33, 11
Minimum Boom Reach to Attachment Pin With 33.9-ft Boom13, 10
Cutting Swath With 33.9-ft Boom20, 1
Ground Clearance With Single Grouser30
Ground Clearance With Double Grouser29
Upperstructure Width, Standard Walkway10, 6
Track Gauge8, 11
Width Over Tracks With 24-in. Track Shoes10, 11
Width Over Tracks With 28-in. Track Shoes11, 3

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