Oliver 770

Last Updated: July 2024

Overview

The Oliver 770 is a classic 2WD row-crop tractor that was manufactured by Oliver from 1958 to 1967. It features an array of options for the engine, with available gasoline, diesel, or LP-gas versions using the Waukesha-Oliver engine. With a displacement of 3.5 L (216.5 cubic inches) and a six-cylinder inline configuration, it offers a liquid-cooled design. According to independent test results, the engine delivers a maximum power output of 48.34 horsepower at 1650 RPM and a maximum torque of 159 lb.-ft. (216 Nm) at 1050 rpm. The tractor comes standard with manual steering and braking systems, including an open operator station for ease of access and operation. Buyers could choose between two transmission types: a traditional sliding gear with dry disc clutch providing six forward and two reverse gears or the Power-Booster transmission with an increased range of 12 forward and four reverse gears. The Oliver 770's practical features, such as its independent PTO and significant fuel tank capacity (ranging between 16.9 to 20.3 gallons for gas and 15.2 to 18.2 gallons for diesel, depending on engine type), make it a versatile tool for a variety of farming tasks.

Key Specifications

Category: Row Crop

Power Output: 48.34

Transmission: Sliding gear with dry disc clutch / Power-Booster

Drive Type: 2WD

Operating Weight: 5500

Fuel Type: Gasoline/Diesel/LP-gas

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Oliver 770 Tractor

Oliver 770 vs. Similar Tractors

Power Output

Poor

Greater than 4% of similar tractors.

Operating Weight

Below Average

Greater than 22% of similar tractors.

Technical Specifications

Engine

Manufacturer: Waukesha-Oliver
Model: Waukesha-Oliver
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Gasoline/Diesel/LP-gas
Induction Type: Natural aspirated
Cylinders: 6
Displacement (ci): 216.5
Bore (in): 3.5
Stroke (in): 3.75
Rated RPM: 1750
Power Output (hp): 48.34

Transmission

Type: Sliding gear with dry disc clutch / Power-Booster
Forward Gears: 12-Jun
Reverse Gears: 4-Feb
Total Gears: -

Dimensions

Length (in): -
Width (in): -
Height (in): -
Operating Weight (lb): 5500

Power Take-Off (PTO)

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

Miscellaneous

Chassis: 4x2 2WD
Drive Type: 2WD
Steering Type: Manual
Coolant Capacity (qts): 18
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: Ag
Manufacture - End Year: 1967
Hitch Type: -
Hitch Category: II/I
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: Open
Starter Type: Electric
Brake Type: Disc
Hydraulic System Type: -

Test Results

Nebraska Tractor Test Laboratory - Test Date: April 21, 1958

Maximum Power and Fuel Consumption

Maximum Power: 48.34 HP (36.06 kW) at 1650 rpm
Fuel Consumption at Maximum Power: 4.10 Gal/hr (15.52 l/h) with a fuel efficiency of 0.485 lb/hp.hr (0.295 kg/kW.h)

Drawbar Performance

Power at Rated Engine Speed: 42.60 HP (31.77 kW) with a drawbar pull of 3725 lbs (16.57 kN) and a speed of 3.50 mph (5.63 km/h)
Fuel Consumption at Rated Speed: 0.574 lb/hp.hr (0.349 kg/kW.h) with a fuel efficiency of 12.58 Hp.hr/gal (2.48 kW.h/l)

Torque and Engine Performance

Maximum Torque: 159 lb.-ft. (216 Nm) at 1050 rpm
Torque Rise: Not available

Hydraulic Performance

Maximum Force Exerted: Not available
Pump Delivery Rate: Not available

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): Not applicable for this model
Fuel Consumption: Not applicable

NTTL.(1958). Test 648: Oliver 770. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/535