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Harrington
(302) 398-3729
325 Walt Messick Road
Harrington, Delaware 19952
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John Deere 959MH

New Products / John Deere / John Deere Products / Forestry Equipment / Tracked Harvesters / 959MH

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Features

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.

TimberMatic™ Maps and TimberManager™

A rugged touchscreen monitor displaying a GPS field map with highlighted rows, guidance paths, and machine location

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

Specifications

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical

Voltage24 V
Number of Batteries2
Voltage Per Battery12 V
Alternator Rating100-amp standard / 130-amp optional
Work LightsLED (14)
Service LightsLED (3)

Undercarriage

TypeIntegral track guides, thick high-abrasion-resistant material, ramp angles, hydraulic track adjustment
Track SizeU7L Extreme Duty (EXD)
Track Chain8.5 in.
Track Chain215.9 mm
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 - High, Forward and Reverse3.6 km/h
Travel Speed - Low, Forward and Reverse1 mph
Travel Speed - Low, Forward and Reverse1.7 km/h
Tractive Effort83880 lbf
Tractive Effort373 kN

Final Tier 4/EU Stage V Serviceability

Fuel Tank285 gal.
Fuel Tank1080 L
Diesel-Exhaust Fluid (DEF) Tank11 gal.
Diesel-Exhaust Fluid (DEF) Tank42 L

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
Harvesting Boom Size, With Thru-Nose Cradle10.34 m
Double Grouser Ground Pressure With 24-in. Track10.5 psi
Double Grouser Ground Pressure With 610-mm Track72.2 kPa
Single Grouser Ground Pressure With 24-in. Track10.4 psi
Single Grouser Ground Pressure With 610-mm Track71.9 kPa
Single Grouser Ground Pressure With 28-in. Track9 psi
Single Grouser Ground Pressure With 711-mm Track62.3 kPa

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
Counterweight SizeMedium
Harvesting Boom Size, With Thru-Nose Cradle33.9 ft
Harvesting Boom Size, With Thru-Nose Cradle10.34 m
Approximate Weight of Base Machine83280 lb.
Approximate Weight of Base Machine37770 kg

Machine Dimensions

Standard Undercarriage SizeU7L EXD
Overall Height With 29.9-ft Boom - Top of Cab With Flat Skylight13, 3 ft, in.
Overall Height With 9.12-m Boom - Top of Cab With Flat Skylight4.03 m
Overall Height With 29.9-ft Boom - Top of Cab With Peaked Skylight13, 11 ft, in.
Overall Height With 9.12-m Boom - Top of Cab With Peaked Skylight4.24 m
Overall Height With 29.9-ft Boom - Top of Boom, Extended, Attachment Vertical13, 4 ft, in.
Overall Height With 9.12-m Boom - Top of Boom, Extended, Attachment Vertical4.07 m
Overall Track Length16, 1 ft, in.
Overall Track Length4.9 m
Track Length, Idler to Sprocket Center12, 6 ft, in.
Track Length, Idler to Sprocket Center3.81 m
Tail Swing, From Swing Center10, 5 ft, in.
Tail Swing, From Swing Center3.18 m
Maximum Boom Reach to Attachment Pin With 29.9-ft Boom29, 11 ft, in.
Maximum Boom Reach to Attachment Pin With 9.12-m Boom9.12 m
Minimum Boom Reach to Attachment Pin With 29.9-ft Boom12, 1 ft, in.
Minimum Boom Reach to Attachment Pin With 9.12-m Boom3.68 m
Cutting Swath With 29.9-ft Boom17, 10 ft, in.
Cutting Swath With 9.12-m Boom5.44 m
Maximum Boom Reach to Attachment Pin With 33.9-ft Boom33, 11 ft, in.
Maximum Boom Reach to Attachment Pin With 10.34-m Boom10.34 m
Minimum Boom Reach to Attachment Pin With 33.9-ft Boom13, 10 ft, in.
Minimum Boom Reach to Attachment Pin With 10.34-m Boom4.21 m
Cutting Swath With 33.9-ft Boom20, 1 ft, in.
Cutting Swath With 10.34-m Boom6.13 m
Ground Clearance With Single Grouser30 in.
Ground Clearance With Single Grouser770 mm
Ground Clearance With Double Grouser29 in.
Ground Clearance With Double Grouser747 mm
Upperstructure Width, Standard Walkway10, 6 ft, in.
Upperstructure Width, Standard Walkway3.2 m
Track Gauge8, 11 ft, in.
Track Gauge2.72 m
Width Over Tracks With 24-in. Track Shoes10, 11 ft, in.
Width Over Tracks With 610-mm Track Shoes3.33 m
Width Over Tracks With 28-in. Track Shoes11, 3 ft, in.
Width Over Tracks With 711-mm Track Shoes3.43 m

Boom Performance - Configuration 2

Boom Length33.9 ft
Boom Length10.34 m
Swath20.1 ft
Swath6.13 m
Harvesting Head UsedHTH623C
Lift Capacity, Bare Pin at Full Reach10720 lb.
Lift Capacity, Bare Pin at Full Reach4860 kg
Lift Capacity, Bare Pin at 25 ft16100 lb.
Lift Capacity, Bare Pin at 7.6 m7300 kg
Lift Capacity, Bare Pin at 30 ft12790 lb.
Lift Capacity, Bare Pin at 9.1m5800 kg

Final Tier 4/EU Stage V Engine

ManufacturerJohn Deere
ModelPowerTech™ Plus 6090PSS
Non-Road Emission StandardsEPA Final Tier 4/EU Stage V
Displacement549 cu in.
Displacement9 L
Speed Peak Power1900 rpm
Peak Power330 hp
Peak Power246 kW
Speed Net Peak Torque1500 rpm
Net Peak Torque1027 lb-ft
Net Peak Torque1392 Nm

Hydraulics

Hydraulics TypeClosed center, pressure compensated, load sense
Main Pump TypeVariable-displacement axial piston
Main Pump Maximum Rated Flow141 gpm
Main Pump Maximum Rated Flow532 L/min
Attachment Pump TypeDedicated variable-displacement axial piston
Attachment Pump Maximum Rated Flow55 gpm
Attachment Pump Maximum Rated Flow209 L/min
Oil Filtration2 main return filters, 10-micron return with bypass, 1 case-drain strainer, 25 micron

Final Tier 4/EU Stage V 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
Harvesting Boom Size, With Thru-Nose Cradle10.34 m
Double Grouser Ground Pressure With 24-in. Track10.6 psi
Double Grouser Ground Pressure With 610-mm Track72.9 kPa
Single Grouser Ground Pressure With 24-in. Track10.5 psi
Single Grouser Ground Pressure With 610-mm Track72.6 kPa
Single Grouser Ground Pressure With 28-in. Track9.1 psi
Single Grouser Ground Pressure With 711-mm Track62.9 kPa

Boom Performance - Configuration 1

Boom Length29.9 ft
Boom Length9.12 m
Swath17.8 ft
Swath5.44 m
Harvesting Head UsedHTH624C
Lift Capacity, Bare Pin at Full Reach13600 lb.
Lift Capacity, Bare Pin at Full Reach6170 kg
Lift Capacity, Bare Pin at 25 ft18130 lb.
Lift Capacity, Bare Pin at 7.6 m8220 kg

Final Tier 4/EU Stage V Electrical

Voltage24 V
Number of Batteries2
Voltage Per Battery12 V
Alternator Rating200 amp
Work LightsLED (14)
Service LightsLED (3)

Rotating Upper (Standard Swing System)

Swing Speed Maximum4.8 rpm
Swing Torque81260 lb-ft
Swing Torque110170 Nm
Swing Brake TypeSealed wet multi-disc, manually applied/released

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine

ManufacturerJohn Deere
ModelPowerTech Plus 6090H
Non-Road Emission StandardsEPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II
Displacement549 cu in.
Displacement9 L
Speed Peak Power1900 rpm
Peak Power330 hp
Peak Power246 kW
Speed Net Peak Torque1500 rpm
Net Peak Torque1126 lb-ft
Net Peak Torque1527 Nm

Tier 3/EU Stage IIIA // Tier 2/EU Stage II Serviceability

Fuel Tank285 gal.
Fuel Tank1080 L

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 Cradle33.9 ft
Harvesting Boom Size, With Thru-Nose Cradle10.34 m
Approximate Weight of Base Machine82490 lb.
Approximate Weight of Base Machine37410 kg

Cooling

Fan TypeSuction type, hydraulically driven, variable speed, reversing