John Deere D

Last Updated: July 2024

Overview

The John Deere Model D tractor is an iconic piece of agricultural history. Although the specific details of this particular model are not fully available, the Model D was known for its durability and simplicity during its production years. Typically, Model D tractors were characterized by their large steel wheels and basic features that were designed for a wide variety of farm tasks. The exact years of manufacture, chassis details, and specific engine characteristics of this model remain unknown. Nonetheless, the Model D established a foundation for the reliability and work ethic associated with the John Deere brand, cementing its legacy in the farming community.

Key Specifications

Power Output: 30

Technical Specifications

Engine

Manufacturer: -
Model: -
Cooling Type: -
Cylinder Orientation: -
Valve Configuration: -
Fuel Type: -
Induction Type: -
Cylinders: -
Displacement (ci): -
Bore (in): -
Stroke (in): -
Rated RPM: -
Power Output (hp): 30

Transmission

Type: -
Forward Gears: -
Reverse Gears: -
Total Gears: -

Dimensions

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

Power Take-Off (PTO)

PTO Type: -
PTO Speed 1 (rpm): -
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: -
Coolant Capacity (qts): -
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: -
Manufacture - End Year: -
Hitch Type: -
Hitch Category: -
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: -
Brake Type: -
Hydraulic System Type: -

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1935

Maximum Power and Fuel Consumption

Maximum Brake Horsepower: 30.35 HP (22.63 kW) at 975 RPM
Fuel Consumption at Maximum Power: 2.49 Gal/hr (9.43 l/h) with a fuel efficiency of 0.559 lb/hp.hr (0.339 kg/kW.h)

Drawbar Performance

Power at Rated Engine Speed: 24.17 HP (18.03 kW) with a drawbar pull of 3067 lbs (13.64 kN) and a speed of 2.47 mph (3.98 km/h)
Fuel Consumption at Rated Speed: 0.670 lb/hp.hr (0.408 kg/kW.h) with a fuel efficiency of 9.49 Hp.hr/gal (1.87 kW.h/l)

Torque and Engine Performance

Maximum Torque: Not specified
Torque Rise: Not specified

Hydraulic Performance

Maximum Force Exerted: Not applicable (hydraulic system not specified)
Pump Delivery Rate: Not applicable (hydraulic system not specified)
Hydraulic Power: Not applicable (hydraulic system not specified)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed: Not specified
Fuel Consumption: Not specified

Nebraska Tractor Test Lab. (1935). Test 236: John Deere D. Lincoln, NE: University of Nebraska-Lincoln. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/45