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Satoh Bison S650

Satoh Bison S650 tractor
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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.
Satoh Bison S650Satoh S650compact utility tractorMazda 1.0L engine25 hp tractortractor specifications
Power-
Founded-
ModelS650

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

Built in:Japan
Category:Compact Utility tractor
Manufacturer:Satoh
Years produced:1973 - 1983

Transmission

Type:unsynchronized gear
Gears:6 forward and 2 reverse
Clutch:dry disc
Description:Three gears (1-3) in two ranges (low-high).
Oil capacity:18.9 qts (17.9 L)

Tractor hitch

Rear Type:I
Rear lift capacity:1102 lbs (499 kg)

Power Take-off (PTO)

Engine RPM:540@2800
Rear PTO Type:540/1000

Related Models

Satoh Bison S550

Model:S550