John Deere 5085M

Last Updated: July 2024

Overview

The John Deere 5085M is a utility tractor powered by a 4.5 L John Deere PowerTech M 4045 four-cylinder liquid-cooled diesel engine with a bore of 4.19 inches and a compression ratio of 16.9 to 1. Based on independent test results, the rated engine speed power at 566 rpm PTO is 70.82 hp, with a maximum torque of 234 lb.-ft. at 1602 rpm and a torque rise of 38.3%. The tractor features hydrostatic power steering, a selective gear fixed ratio transmission, and wet disc hydraulically actuated brakes. It has a three-point hitch category II/I and a direct engine drive hydraulic control system with a maximum force of 6,390 lbs and a pump delivery rate of 20.8 GPM at minimum pressure and rated engine speed. The PTO is independent with an electro-hydraulic clutch and offers speeds of 540/540E or 540/540E/1000 rpm. Additional details include sound level measurements, specific fuel consumption values, and hydraulic performance metrics.

Key Specifications

Category: Utility

Power Output: 70.82 (Rated Engine Speed Power at PTO 566 rpm)

Transmission: Selective gear fixed ratio

Fuel Type: Diesel

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John Deere 5085M Tractor

John Deere 5085M vs. Similar Tractors

Power Output

Above Average

Greater than 74% of similar tractors.

Hitch Capacity

Above Average

Greater than 73% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: PowerTech M 4045
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Diesel
Induction Type: -
Cylinders: 4
Displacement (ci): 276
Bore (in): 4.19
Stroke (in): 5
Rated RPM: 2,200
Power Output (hp): 70.82 (Rated Engine Speed Power at PTO 566 rpm)

Transmission

Type: Selective gear fixed ratio
Forward Gears: -
Reverse Gears: -
Total Gears: -

Dimensions

Length (in): -
Width (in): -
Height (in): -
Operating Weight (lb): -

Power Take-Off (PTO)

PTO Type: Independent with electro-hydraulic clutch
PTO Speed 1 (rpm): 540/540E or 540/540E/1000
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: Hydrostatic power
Coolant Capacity (qts): 12
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: Agricultural
Manufacture - End Year: 2011
Hitch Type: Three-Point Hitch
Hitch Category: II/I
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: Foldable ROPS, deluxe ROPS or Cab (optional)
Starter Type: Electric
Brake Type: Wet disc hydraulically actuated by foot pedal
Hydraulic System Type: Direct engine drive hydraulic control system

Test Results

Nebraska Tractor Test Laboratory - Test Date: September 12 - 21, 2012

Maximum Power and Fuel Consumption

Rated Engine Speed Power (PTO speed - 566 rpm): 70.82 HP (52.81 kW) at 2201 rpm
Fuel Consumption at Rated Speed: 4.59 Gal/hr (17.36 l/h) with a fuel efficiency of 0.456 lb/hp.hr (0.278 kg/kW.h) and 15.44 Hp.hr/gal (3.04 kW.h/l)
Maximum Power (1 hour): 76.68 HP (57.18 kW) at 1952 rpm with a fuel consumption of 4.51 Gal/hr (17.08 l/h)

Varying Power and Fuel Consumption

Maximum Torque: 234 lb.-ft. (283 Nm) at 1602 rpm
Torque Rise: 38.3%
Power Increase at 1952 rpm: 8.3%

Hydraulic Performance

Maximum Force Exerted through the Whole Range: 6390 lbs (28.4 kN) (2 x 63 mm lift cylinders)
Pump Delivery Rate at Minimum Pressure and Rated Engine Speed: 20.8 GPM (78.7 l/min)
Hydraulic Power: 28.0 HP (20.9 kW) at a delivery pressure of 2451 psi (169 bar)

Tires and Weight

Rear Tires: Two 16.9-30; 6 ply; 12 psi (85 kPa)
Front Tires: Two 11.2-24; 6 ply; 18 psi (125 kPa)
Static Weight (with operator): Rear - 4850 lb (2200 kg), Front - 3150 lb (1429 kg), Total - 8000 lb (3629 kg)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (540 rpm): 16.09 Hp.hr/gal (3.17 kW.h/l) at 2100 engine rpm
Fuel Consumption: 4.57 Gal/hr (17.31 l/h) at 2100 rpm

Nebraska Tractor Test Lab. (2012). Test 2036: John Deere 5085M. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2457