Tractorpedia.com

John Deere 850B

John Deere 850B tractor
View Images
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.
John Deere 850Bbulldozerspecificationsenginetransmissiondimensionshydraulicsattachments
Power-
Founded-
Model850B

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

Type:hydrostatic
Gears:infinite forward and reverse

Related Models

John Deere 850C

Model:850C

John Deere 750B

Model:750B

John Deere 850

Model:850