Allis Chalmers B-1
The Allis Chalmers B-1 is a tractor produced by Allis Chalmers Lawn Tractors. It is equipped with a 304 cc 18.55 ci engine. The listed engine power is Gasoline (listed): 7.25 hp / 5.4 kW. Transmission: 3 forward and 1 reverse. Operating weight: 600 lbs 272 kg.
Engine Power
Gasoline (listed): 7.25 hp / 5.4 kW
Fuel & Capacities
1.5 gal
5.7 L
Transmission
3 forward and 1 reverse
Operating Weight
600 lbs
272 kg
Overview
 | 1961 - 1963
B SeriesGarden tractorSimplicity built
B Series
Garden tractor
Simplicity built |
|---|
Production | |
|---|---|
Distributor | Allis Chalmers |
Manufacturer | Simplicity |
Garden tractor | |
Built in Port Washington, Wisconsin, USA | |
Allis Chalmers B-1 Engine | |
|---|---|
7.25HP Briggs & Stratton 304cc 1-cyl gasoline | |
Fuel tank | 1.5 gal
5.7 L |
Engine details ...  | |
Allis Chalmers B-1 Transmission | |
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3-speed gear | |
Transmission details ...  |
Mechanical | |
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Two-wheel drive | |
Manual steering | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Rear PTO | live |
Mid PTO | live |
Front PTO | live |
Dimensions & Tires | |
|---|---|
Wheelbase | 44 inches
111 cm |
Weight | 600 lbs
272 kg |
Front tire | 4.80x8 |
Rear tire | 6.00x12 |
Full dimensions and tires ...  | |
Links | |
|---|---|
Allis-Chalmers B-1: information, photos and old advertising literature at SimpleTractors.com |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
Service Manual B Series Tractors (9003453) published in 1976 |
Engine
Engine Detail — 304 cc / 18.55 ci Gasoline
Manufacturer | Briggs & Stratton 19D |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled horizontal-shaft |
Displacement | 304 cc
18.55 ci |
Bore/Stroke | 3.00x2.625 inches
76 x 67 mm |
Power | 7.25 hp
5.4 kW |
Air cleaner | oil bath |
Rated RPM | 3600 |
Starter | electric |
Starter volts | 12 |
Oil capacity | 1.5 qts
1.4 L |
Transmission
Transmission — 3 forward and 1 reverse shaft-driven gear
Type | shaft-driven gear |
Gears | 3 forward and 1 reverse |
 | |
Dimensions
Allis Chalmers B-1 Tires | |
|---|---|
Lawn/turf front | 4.80x8 |
Lawn/turf rear | 6.00x12 |
Dimensions | |
|---|---|
Wheelbase | 44 inches
111 cm |
Length | 68 inches
172 cm |
Width | 34.25 inches
86 cm |
Height | 37.3 inches
94 cm |
Shipping weight | 600 lbs
272 kg |
Ground clearance | 6 inches
15 cm |
Attachments
42" Mower deck | |
|---|---|
Type | mid-mount Allis-Chalmers |
Cutting width | 42 inches
106 cm |
Photos
Yellow Allis-Chalmers B1 with center blade.
Yellow Allis-Chalmers B1 with center blade.
Orange Allis-Chalmers B1.
Allis-Chalmers B1 with sickle mower.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers Lawn Tractors Allis Chalmers B-1.
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
Allis Chalmers Lawn Tractors Allis Chalmers B-1 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Allis Chalmers Lawn Tractors Allis Chalmers B-1.
Converted Equivalents:
Horsepower (HP)7.3 hp
Kilowatts (kW)5.4 kW
Metric Horsepower (PS / CV)7.4 PS
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