Sears Handiman R-T
The Sears Handiman R-T is a tractor produced by Sears Lawn Tractors. It is equipped with a 376 cc 23 ci engine. The listed engine power is Gasoline (listed): 5 hp / 3.7 kW. Transmission: 2 forward and 1 reverse.
Engine Power
Gasoline (listed): 5 hp / 3.7 kW
Fuel & Capacities
2.5 gal
9.5 L
Transmission
2 forward and 1 reverse
Overview
![]() | 1939 - 1940
Garden tractorDavid Bradley built
Garden tractor
David Bradley built |
|---|
Production | |
|---|---|
Distributor | Sears |
Manufacturer | David Bradley |
Garden tractor | |
Built in Bradley, Illinois, USA | |
Original price was $355 in 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 | |
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5HP Briggs & Stratton 376cc 1-cyl gasoline | |
Fuel tank | 2.5 gal
9.5 L |
Engine details ... | |
Sears Handiman R-T Transmission | |
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2-speed sliding gear | |
Transmission details ... |
Mechanical | |
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Two-wheel drive | |
Steering | manual |
Open operator station with steel pan seat. | |
Dimensions & Tires | |
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Wheelbase | 57.25 inches
145 cm |
Full dimensions and tires ... | |
Engine
Engine Detail — 376 cc / 23 ci Gasoline
Manufacturer | Briggs & Stratton Z |
Fuel Type | Gasoline |
Configuration | 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 |
Transmission
Transmission — 2 forward and 1 reverse belt-driven sliding gear
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. | |
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Dimensions
Sears Handiman R-T Tires | |
|---|---|
Ag front | 4.00x8 |
Ag rear | 6.00x22 |
Dimensions | |
|---|---|
Wheelbase | 57.25 inches
145 cm |
Ground clearance | 18 inches
45 cm |
Front tread | 27/31.5/36 inches
68/80/91 cm |
Rear tread | 27/31.5/36 inches
68/80/91 cm |
Photos
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Sears Lawn Tractors Sears Handiman R-T.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Sears Lawn Tractors Sears Handiman R-T Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Sears Lawn Tractors Sears Handiman R-T.
Converted Equivalents:
Horsepower (HP)5 hp
Kilowatts (kW)3.7 kW
Metric Horsepower (PS / CV)5.1 PS
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