International Harvester A-766

The International Harvester A-766 is a tractor produced by International Harvester. It is equipped with a 310 ci 5.1 L engine. The rated power output is 98 hp 73.1 kW. Transmission: Torque Amplifier. Operating weight: 10300 lbs 4672 kg.

Overview

	1972 - 1978 66A SeriesRow-Crop tractor
1972 - 1978
66A Series
Row-Crop tractor

Production
Manufacturer	International Harvester
Row-Crop tractor
Built in Geelong, Australia

International Harvester A-766 Engine
International Harvester 5.1L 6-cyl diesel
Fuel tank	37 gal 140.0 L
Engine details ...

International Harvester A-766 Power
Engine	98 hp 73.1 kW
PTO (claimed)	80 hp 59.7 kW

Mechanical
Two-wheel drive
Final drives	spur gear
Power steering
Hydraulic dry disc brakes
Open operator station. Cab optional.

Hydraulics
Type	open center
Pump flow	12 gpm 45.4 lpm

Tractor hitch
Rear Type	II

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000

Dimensions & Tires
Wheelbase	104.8 inches 266 cm
Weight	10300 lbs 4672 kg
Front tire	9.5L-15
Rear tire	18.4-34
Full dimensions and tires ...

References
International Harvester Australia: Geelong Works by Sarah Tomac*
International Harvester Tractors & Equipment in Australia & New Zealand by Graeme Quick
Technical Annual published in 1977, by Power Farming
696 & 766 Tractors published in 1972, by International Harvester
*Publication contains known errors.

Engine

Engine Detail — 310 ci / 5.1 L Diesel

Manufacturer	International Harvester D-310
Fuel Type	Diesel
Configuration	6-cylinder, liquid-cooled inline
Displacement	310 ci 5.1 L
Bore/Stroke	3.875x4.375 inches 98 x 111 mm
Power	98 hp 73.1 kW
Air cleaner	dual stage dry
Compression	16:1
Rated RPM	2300
Torque	248 lb-ft 336.3 Nm
Torque RPM	1600
Starter	electric
Starter volts	12

Transmission

Transmission options
8-speed sliding gear
16-speed two-speed power shift

Transmission — 8 forward and 4 reverse sliding gear

Type	sliding gear
Gears	8 forward and 4 reverse
Clutch	dry disc
Four gears (1-4) in low and high ranges.

Transmission — Torque Amplifier

Transmission	Torque Amplifier
Type	two-speed power shift
Gears	16 forward and 8 reverse
Clutch	dry disc
Four gears (1-4) in two ranges (low/high) with the Torque Amplifier (TA) power shift. The TA allows a shift-on-the-move between direct drive and a lower speed.

Dimensions

International Harvester A-766 Tires
Ag front	9.5L-15
Ag rear	18.4-34

Dimensions
Wheelbase	104.8 inches 266 cm
Length	155.8 inches 395 cm
Width	91 inches 231 cm
Height (steering wheel)	84.7 inches 215 cm
Operating weight	10300 lbs 4672 kg
Ballasted weight	11880 lbs 5388 kg
Front tread	60 to 84 inches 152 to 213 cm
Rear tread	56 to 100 inches 142 to 254 cm

Photos

International A-766, right side.

International A-766, left side.