John Deere industrial tractors

John Deere 850B

The John Deere 850B is a bulldozer produced from 1985 to 1995. It features a John Deere 7.6L 6-cylinder turbocharged intercooled diesel engine delivering 175 hp gross and 165 hp net. The tractor uses a hydrostatic transmission with infinite forward and reverse speeds and a crawler drive. It has a four-post ROPS with canopy, with an optional cab featuring air-conditioning. Fuel capacity is 82 gallons, and the hydraulic system holds 35 gallons with an open center type, 2250 psi pressure, and 38 gpm pump flow. The 850B weighs between 37,515 and 37,915 pounds depending on configuration. It supports various attachments including front-mount blades of 123 and 152 inches width. Electrical system includes a 12-volt alternator with two batteries rated at 570 CCA.

Power-

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Model850B

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Technical Specifications

Detailed specifications and technical data for John Deere 850B

Power

Engine (net)	165 hp (123.0 kW)
Engine (gross)	175 hp (130.5 kW)

Engine

Type	turbocharged intercooled diesel
Model	John Deere 6-466A
Torque	578 lb-ft (783.8 Nm)
Cooling	liquid-cooled
Starter	electric
Cylinders	6-cylinder
Rated RPM	1800
Torque RPM	1200
Air cleaner	dry
Bore/Stroke	4.56x4.75 inches (116 x 121 mm)
Compression	14.9:1
Power (net)	165 hp (123.0 kW)
Displacement	466 ci (7.6 L)
Oil capacity	34 qts (32.2 L)
Power (gross)	175 hp (130.5 kW)
Starter volts	24
Coolant capacity	36 qts (34.1 L)

Tracks

6540 width	24 inches (60 cm)
6540 area on ground	4560 in² (2.9 m²)
6540 ground pressure	8.3 psi (0.6 bar)
6540 Long-Track width	24 inches (60 cm)
6540 length on ground	95 inches (241 cm)
6540 Long-Track area on ground	5136 in² (3.3 m²)
6540 Long-Track ground pressure	7.65 psi (0.5 bar)
6540 Long-Track length on ground	107 inches (271 cm)

Capacity

Fuel	82 gal (310.4 L)
Hydraulic system	35 gal (132.5 L)

Dimensions

Gauge	74 inches (187 cm)
Weight	37515 to 37915 pounds
Height (ROPS)	126 inches (320 cm)
Operating weight	37915 lbs (6540 dozer) (17198 kg), 37515 lbs (6545 dozer) (17016 kg)

Electrical

Batteries	2
Battery CCA	570
Battery volts	12
Charging system	alternator

Hydraulics

Type	open center
Capacity	35 gal (132.5 L)
Pressure	2250 psi (155.1 bar)
Pump flow	38 gpm (143.8 lpm)

Mechanical

ROPS	Four-post ROPS with canopy. Cab optional with available air-conditioning.
Drive	crawler

Production

Category	Bulldozer
Manufacturer	John Deere
Years produced	1985 - 1995

Attachments

123" Blade	John Deere 6545, front-mount, 123 inches width (312 cm), 44.5 inches height (113 cm), 42.3 inches lift (107 cm), 15 inches tilt (38 cm), 18.5 inches cut (46 cm), hydraulic-lift
152" Blade	John Deere 6540, front-mount, 152 inches width (386 cm), 40 inches height (101 cm), 38.25 inches lift (97 cm), 13.25 inches tilt (33 cm), Angling 25°, 21.1 inches cut (53 cm), hydraulic-lift, hydraulic-angle

Transmission