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Specifications – John Deere 850J User Manual

Page 12

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Specifications

Specifications

Specifications

PAGES

12–13

Engine

850J WH WT w/Semi-U Blade / WLT w/PAT Blade

850J WH LGP w/PAT or Semi-U Blade

Manufacturer and Model. . . . . . . . . . . . . . . . . . John Deere PowerTech Plus

TM

6090HT

John Deere PowerTech Plus 6090HT

Non-Road Emission Standards . . . . . . . . . . . . . complies with EPA Tier 3 regulations

complies with EPA Tier 3 regulations

Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . 550 cu. in. (9.0 L)

550 cu. in. (9.0 L)

Net Power (ISO9249) . . . . . . . . . . . . . . . . . . . . 185 hp (137 kW) @ 1,800 rpm

200 hp (151 kW) @ 1,800 rpm

Net Peak Torque (ISO9249) . . . . . . . . . . . . . . . . 611 lb.-ft. (831 Nm) @ 1,500 rpm

675 lb.-ft. (915 Nm) @ 1,500 rpm

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . pressure system with full-flow spin-on filter and oil-to-water

pressure system with full-flow spin-on filter and oil-to-water

cooler

cooler

Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . dual-stage dry type with tangential unloader

dual-stage dry type with tangential unloader

Cooling

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . variable-speed, thermostatically controlled; hydraulically driven with auto reverser on selectable timer or activated by a switch

in the cab

Engine Coolant Rating. . . . . . . . . . . . . . . . . . . . – 34 deg. F (– 37 deg. C)

– 34 deg. F (– 37 deg. C)

Powertrain

Transmission. . . . . . . . . . . . . . . . . . . . . . . . . . automatic, dual-path, hydrostatic drive; load-sensing feature automatically adjusts speed and power to match changing load

conditions; each individually controlled track is powered by a variable-displacement piston pump and motor combination;
ground-speed selection buttons on single-lever steering and direction control; independently selectable reverse speed ratios
80%, 100%, 115%, or 130% of forward ground speed; decelerator pedal controls ground speed to stop

System Relief Pressure. . . . . . . . . . . . . . . . . . . 6,650 psi (45 850 kPa)

6,650 psi (45 850 kPa)

Filter, Charge Oil . . . . . . . . . . . . . . . . . . . . . . . . 10 micron

10 micron

Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . oil-to-air
Travel Speeds (forward and reverse). . . . . . . . . 6.3 mph (10 km/h)

6.3 mph (10 km/h)

Steering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . single-lever steering, speed, direction control, and counterrotation; full power turns and infinitely variable track speeds provide

unlimited maneuverability and optimum control; hydrostatic steering eliminates steering clutches and brakes

Final Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . double-reduction planetary final drives transfer torque loads over three gear sets; mounted independently of track frames and

dozer push frames for isolation from shock loads

Total Ratio . . . . . . . . . . . . . . . . . . . . . . . . . 44.7483 to 1

44.7483 to 1

Drawbar Pull

Maximum . . . . . . . . . . . . . . . . . . . . . . . 77,300 lb. (344 kN)

77,300 lb. (344 kN)

@ 1.2 mph (1.9 km/h) . . . . . . . . . . . . . 37,500 lb. (167 kN)

40,000 lb. (178 kN)

@ 2.0 mph (3.2 km/h) . . . . . . . . . . . . . 27,000 lb. (120 kN)

29,500 lb. (131 kN)

Service Brakes . . . . . . . . . . . . . . . . . . . . . . . . hydrostatic (dynamic) braking stops the machine when the direction/steering control lever is moved to neutral or the decelerator

is depressed to the end of travel

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . hydraulic

Parking Brakes . . . . . . . . . . . . . . . . . . . . . . . . exclusive safety feature engages wet, multiple-disc brakes whenever the engine stops, the decelerator is depressed to the end

of travel, or the park lock lever is placed in the start or neutral positions and motion is detected; machine cannot be driven with
brake applied, reducing wear-out or need for adjustment; spring-applied, hydraulic release

Vertis QCA

1300 19th Street, Suite 200

East Moline, IL 61244

Cyan

Magenta

Yellow

Black

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