John Deere Product Details
859MH
Operate in Comfort
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
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™
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.
Description: 859MH
Key Specs
| Manufacturer | John Deere |
| Model | PowerTech™ Plus 6090PSS |
| Displacement | 549 cu in. |
| Manufacturer | John Deere |
| Model | PowerTech™ Plus 6090H |
| Displacement | 549 cu in. |
| Hydraulics Type | Closed center, load sense, pressure compensated |
| Approximate Weight of Base Machine | 83640 lb. |
| Approximate Weight of Base Machine | 82490 lb. |
| Boom Length | 32.5 ft |
| Lift Capacity, Bare Pin at Full Reach | 7718 lb. |
| Boom Length | 29 ft |
| Lift Capacity, Bare Pin at Full Reach | 9240 lb. |
| Boom Length | 25.33 ft |
| Lift Capacity, Bare Pin at Full Reach | 12170 lb. |
Final Tier 4/EU Stage V Engine
| Manufacturer | John Deere |
| Model | PowerTech™ Plus 6090PSS |
| Non-Road Emission Standards | EPA Final Tier 4/EU Stage V |
| Cylinders | 6 |
| Displacement | 549 cu in. |
| Speed Peak Power | 1900 rpm |
| Peak Power, Standard Travel | 300 hp |
| Peak Power, Dedicated Travel | 330 hp |
| Speed Net Peak Torque | 1500 rpm |
| Net Peak Torque, Standard Travel | 937 lb-ft |
| Net Peak Torque, Dedicated Travel | 1126 lb-ft |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Engine
| Manufacturer | John Deere |
| Model | PowerTech™ Plus 6090H |
| Non-Road Emission Standards | EPA Tier 3/EU Stage IIIA / EPA Tier 2/EU Stage II |
| Cylinders | 6 |
| Displacement | 549 cu in. |
| Speed Peak Power | 1900 rpm |
| Peak Power, Standard Travel | 300 hp |
| Peak Power, Dedicated Travel | 330 hp |
| Speed Net Peak Torque | 1500 rpm |
| Net Peak Torque, Standard Travel | 937 lb-ft |
| Net Peak Torque, Dedicated Travel | 1126 lb-ft |
Cooling
| Fan Type | Suction type, hydraulically driven, variable speed, reversing |
Hydraulics
| Hydraulics Type | Closed center, load sense, pressure compensated |
| Oil Filtration | 2 main return filters, 10-micron return with bypass, 1 case-drain strainer, 25 micron |
Hydraulics Pump - Standard Travel System
| Main Pump Type | Variable-displacement axial piston |
| Main Pump Maximum Rated Flow | 141 gpm |
| Attachment Pump Type | Dedicated variable-displacement axial piston |
| Attachment Pump Maximum Rated Flow | 55 gpm |
Hydraulics Pump - Dedicated Travel System
| Main Pump Type | Variable-displacement axial piston |
| Main Pump Maximum Rated Flow | 131 gpm |
| Travel Pump Type | Dedicated variable-displacement axial piston |
| Travel Pump Maximum Rated Flow | 50 gpm |
| Attachment Pump Type | Dedicated variable-displacement axial piston |
| Attachment Pump Maximum Rated Flow | 48 gpm |
Final Tier 4/EU Stage V Electrical
| Voltage | 24 V |
| Number of Batteries | 2 |
| Voltage Per Battery | 12 V |
| Alternator Rating | 200-amp standard |
| Work Lights | LED (13) |
| Service Lights | LED (2) |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Electrical
| Voltage | 24 V |
| Number of Batteries | 2 |
| Voltage Per Battery | 12 V |
| Alternator Rating | 100-amp standard, 130-amp optional |
| Work Lights | LED (14) |
| Service Lights | LED (3) |
Undercarriage
| Type | Integral track guides, thick high-abrasion-resistant material, ramp angles, hydraulic track adjustment |
| Track Size | U7L Extreme Duty (EXD) |
| Track Chain | 8.5 in. |
| Number of Track Links Per Side | 47 |
| Lower Rollers Per Side | 10 |
| Carrier Slides/Rollers Per Side | 2 |
| Travel Speed - Standard Travel - High, Forward and Reverse | 2.2 mph |
| Travel Speed - Standard Travel - Low, Forward and Reverse | 1 mph |
| Travel Speed - Dedicated Travel - High, Forward and Reverse | 2.6 mph |
| Travel Speed - Dedicated Travel - Low, Forward and Reverse | 1.2 mph |
| Tractive Effort - Standard Travel | 83876 lbf |
| Tractive Effort - Dedicated Travel | 85430 lbf |
Final Tier 4/EU Stage V Undercarriage
| Type | Integral track guides, thick high abrasion resistant material, ramp angles, hydraulic track adjustment |
| Size | U7L ExD LC |
| Track Chain | 8.5 in. |
| Number of Track Links Per Side | 11 |
| Lower Rollers Per Side | 3 |
| Travel Speed - High, Standard Travel, Forward and Reverse | 2.2 mph |
| Travel Speed - Low, Standard Travel, Forward and Reverse | 1 mph |
Rotating Upper (Standard Swing System)
| Swing Speed Maximum | 7 rpm |
| Swing Torque | 73756 lb-ft |
| Swing Brake Type | Sealed wet multi-disc, manually applied/released |
Final Tier 4/EU Stage V Serviceability
| Fuel Tank | 228.9 gal. |
| Diesel-Exhaust Fluid (DEF) Tank | 8.9 gal. |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Serviceability
| Fuel Tank | 228.9 gal. |
Final Tier 4/EU Stage V Ground Pressure - EPA
| Conditions for Measuring Ground Pressure | Includes standard equipment, STD travel, 10.34M Harv. Boom w/ Thru Nose Cradle, medium Counterweight, Flat Skylight, half full fuel tank, all fluids, less attachment |
| Undercarriage Size | U7L ExD LC |
| Single Grouser Ground Pressure With 24-in. Track | 10.1 psi |
| Single Grouser Ground Pressure With 28-in. Track | 8.7 psi |
Final Tier 4/EU Stage V Ground Pressure
| Conditions for Measuring Ground Pressure | Includes standard equipment, 10.34 m harv. boom, medium extended counterweight, half-full fuel tank, and all fluids, less attachment |
| Undercarriage Size | U7L EXD |
| Counterweight Size | Medium extended counterweight |
| Double Grouser Ground Pressure With 24-in. Track | 10.6 psi |
| Single Grouser Ground Pressure With 24-in. Track | 10.6 psi |
| Single Grouser Ground Pressure With 28-in. Track | 9.2 psi |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Ground Pressure
| Conditions for Measuring Ground Pressure | Includes standard equipment, 7.75-m (25 ft 5 in.) boom, medium extended counterweight, half-full fuel tank, and all fluids, less attachment |
| Undercarriage Size | U7L EXD |
| Counterweight Size | Medium extended counterweight |
| Double Grouser Ground Pressure With 24-in. Track | 10.1 psi |
| Single Grouser Ground Pressure With 24-in. Track | 10 psi |
| Single Grouser Ground Pressure With 28-in. Track | 8.7 psi |
Final Tier 4/EU Stage V Operating Weight
| Conditions for Measuring Operating Weight | Includes standard equipment, STD Travel, 10.34M Harv. Boom w/ Thru Nose Cradle, Medium Counterweight, 24” SG Tracks, Flat Skylight, half full fuel tank, all fluids, less attachment |
| Undercarriage Size | U7L ExD LC |
| Approximate Weight of Base Machine | 38680 kg |
| Approximate Weight of Base Machine | 85290 lb. |
Final Tier 4/EU Stage V Operating Weight
| Conditions for Measuring Operating Weight | Includes standard equipment, 10.34-m harv. boom w/ thru nose cradle, medium counterweight, 610-mm (24 in.) single-grouser tracks, flat skylight half-full fuel tank, and all fluids, less attachment |
| Undercarriage Size | U7L EXD |
| Counterweight Size | Medium extended counterweight |
| Approximate Weight of Base Machine | 83640 lb. |
Tier 3/EU Stage IIIA // Tier 2/EU Stage II Operating Weight
| Conditions for Measuring Operating Weight | Includes standard equipment, 10.34-m harv. boom w/ thru nose cradle, medium counterweight, 610-mm (24 in.) single-grouser tracks, flat skylight half-full fuel tank, and all fluids, less attachment |
| Undercarriage Size | U7L EXD |
| Counterweight Size | Medium extended counterweight |
| Approximate Weight of Base Machine | 82490 lb. |
Boom Performance - Configuration 1
| Boom Length | 32.5 ft |
| Lift Capacity, Bare Pin at Full Reach | 7718 lb. |
| Lift Capacity, Bare Pin at 20 ft | 17927 lb. |
Boom Performance - Configuration 2
| Boom Length | 29 ft |
| Lift Capacity, Bare Pin at Full Reach | 9240 lb. |
| Lift Capacity, Bare Pin at 20 ft | 16980 lb. |
| Lift Capacity, Bare Pin at 25 ft | 12900 lb. |
Boom Performance - Configuration 3
| Boom Length | 25.33 ft |
| Lift Capacity, Bare Pin at Full Reach | 12170 lb. |
| Lift Capacity, Bare Pin at 20 ft | 18410 lb. |
Machine Dimensions
| Standard Undercarriage Size | U7L EXD |
| Overall Height With 29-ft Boom - Top of Cab With Flat Skylight | 12, 10 |
| Overall Height With 29-ft Boom - Top of Cab With Peaked Skylight | 13, 7 |
| Overall Height With 29-ft Boom - Top of Boom, Extended, Attachment Vertical | 15, 5 |
| Overall Track Length | 16, 1 ft, in. |
| Track Length, Idler to Sprocket Center | 12, 7 |
| Tail Swing, From Swing Center, Small and Medium Counterweight | 6, 4 |
| Tail Swing, From Swing Center, Medium Extended Counterweight | 7, 4 |
| Maximum Boom Reach to Attachment Pin With 25.5-ft Boom | 25, 5 |
| Minimum Boom Reach to Attachment Pin With 25.5-ft Boom | 7, 7 |
| Cutting Swath With 25.5-ft Boom | 17, 10 |
| Maximum Boom Reach to Attachment Pin With 29-ft Boom | 29 |
| Minimum Boom Reach to Attachment Pin With 29-ft Boom | 8, 11 |
| Cutting Swath With 29-ft Boom | 20, 1 |
| Maximum Boom Reach to Attachment Pin With 29.9-ft Boom | 32, 6 |
| Minimum Boom Reach to Attachment Pin With 29.9-ft Boom | 11, 4 |
| Cutting Swath With 32.6-ft Boom | 21, 2 |
| Ground Clearance With Single Grouser | 29 |
| Ground Clearance With Double Grouser | 29 |
| Upperstructure Width, Standard Walkway | 10, 4 |
| Upperstructure Width With Optional Walkway | 11 |
| Track Gauge | 8, 11 |
| Width Over Tracks With 24-in. Track Shoes | 10, 11 |
| Width Over Tracks With 28-in. Track Shoes | 11, 3 |
| Overall track length – LC (m) | 5.23 m |
| Overall track length – LC (ft, in.) | 17.2 |
| Track length, idler to sprocket center – LC | 4.14 m |
| Track length, idler to sprocket center – LC | 13.7 |
