Sears lawn tractors Handiman R-T tractor specifications

1939 - 1940

1939 - 1940 Garden tractorDavid Bradley built

Production

Production DistributorSears ManufacturerDavid Bradley TypeGarden tractor FactoryBradley, Illinois, USA Original price$355 (1940 ) The Sears Handiman Riding Tractor (R-T) was based on the Handiman two-wheel walking tractors. Sears model numbers included 917.5151, 917.5154, and 917.5155

Sears Handiman R-T Engine

Sears Handiman R-T Engine 5HP Briggs & Stratton 376cc 1-cyl gasoline Fuel tank2.5 gal
9.5 L Engine details ...

1939 - 1940

Garden tractor

David Bradley built

Engine Detail

Engine Detail
Briggs & Stratton Z
gasoline
1-cylinder 2-valve
air-cooled horizontal-shaft L-head
Displacement	376 cc 23 ci
Bore/Stroke	3.00x3.25 inches 76 x 83 mm
Power	5 hp 3.7 kW
Fuel system	carburetor
Air cleaner	oil bath
Rated RPM	3200
Starter type	hand-crank
Oil capacity	2.5 qts 2.4 L
Sparkplug gap	0.025 inches 0.635 mm
Intake valve clearance	0.008 inches 0.203 mm
Exhaust valve clearance	0.015 inches 0.381 mm

Sears Handiman R-T Transmission

Sears Handiman R-T Transmission 2-speed sliding gear Transmission details ...

1939 - 1940

Garden tractor

David Bradley built

Transmission

Transmission
Type	belt-driven sliding gear
Gears	2 forward and 1 reverse
Clutch	mechanical belt idler
Sears advertised the ability to swap the engine and transmission pulleys, giving about 20% faster speeds.