Satoh

Satoh Bison S650

The Satoh Bison S650 is a compact utility tractor produced from 1973 to 1983 by Satoh in Japan. It features a Mazda 1.0L 4-cylinder gasoline engine producing 25 hp, a 6-speed unsynchronized gear transmission, and two-wheel drive with spur gear final drives. The tractor has an open operator station and mechanical internal expanding shoe brakes. It offers a rear hitch type I with a lift capacity of 1102 lbs and a rear PTO with 540/1000 RPM. Dimensions include a 60.4 inch wheelbase, 105.1 inch length, and an operating weight of 2105 lbs. The S650 is related to the Satoh Bison S550 model.

Power-

Founded-

ModelS650

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Technical Specifications

Detailed specifications and technical data for Satoh Bison S650

Power

Engine power	25 hp (18.6 kW)
PTO (tested)	22.03 hp (16.4 kW)
PTO (claimed)	22 hp (16.4 kW)
Drawbar (tested)	18.16 hp (13.5 kW)

Tires

Ag rear	11.2/10-24
Ag front	5.00-15
Lawn/turf rear	13.6-16.5
Lawn/turf front	20x8-10

Engine

Model	Mazda 1.0L 4-cyl gasoline
Power	25 hp (18.6 kW)
Starter	electric
Fuel tank	9.5 gal (36.0 L)
Rated RPM	2800
Air cleaner	oil bath
Bore/Stroke	2.677x2.677 inches (68 x 68 mm)
Displacement	60.2 ci (1.0 L)
Oil capacity	3.2 qts (3.0 L)
Starter volts	12
Coolant capacity	5 qts (4.7 L)
Compression ratio	8.6:1

Dimensions

Width	52.9 inches (134 cm)
Length	105.1 inches (266 cm)
Wheelbase	60.4 inches (153 cm)
Rear tread	40 to 51.7 inches (101 to 131 cm)
Front tread	40.9 to 52.8 inches (103 to 134 cm)
Ballasted weight	3640 lbs (1651 kg)
Ground clearance	13.9 inches (35 cm)
Operating weight	2105 lbs (954 kg)
Height (steering wheel)	54.7 inches (138 cm)

Electrical

Ground	negative
Battery volts	12
Charging system	alternator

Mechanical

Drive	Two-wheel drive
Brakes	Differential mechanical internal expanding shoe brakes
Steering	Manual steering
Final drives	spur gear
Operator station	Open operator station

Production