Lawn Chief 420
The Lawn Chief 420 is a tractor produced by Lawn Chief Lawn Tractors. The listed engine power is Gasoline (gross): 12 hp / 8.9 kW. Transmission: 5 forward and 1 reverse.
Engine Power
Gasoline (gross): 12 hp / 8.9 kW
Fuel & Capacities
1.5 gal
5.7 L
Transmission
5 forward and 1 reverse
Overview
 | 1990
Lawn tractor |
|---|
Production | |
|---|---|
Manufacturer | Lawn Chief |
Lawn tractor | |
Built in Harvard, Illinois, USA | |
Lawn Chief 420 Engine | |
|---|---|
12HP Briggs & Stratton 1-cyl gasoline | |
Fuel tank | 1.5 gal
5.7 L |
Engine details ...  | |
Lawn Chief 420 Transmission | |
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5-speed gear | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station |
Power Take-off (PTO) | |
|---|---|
Mid PTO | independent |
Clutch | manual |
Dimensions & Tires | |
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Full dimensions and tires ...  |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
Master Parts Manual published in 1990 |
Engine
Engine Detail — Gasoline
Manufacturer | Briggs & Stratton |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled vertical-shaft |
Power (gross) | 12 hp
8.9 kW |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 5 forward and 1 reverse belt-driven gear
Type | belt-driven gear |
Gears | 5 forward and 1 reverse |
Dimensions
Lawn Chief 420 Tires |
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Dimensions |
|---|
Attachments
Attachment overview | |
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36" mid-mount mower deck | |
Blade |
36" Mower deck | |
|---|---|
Type | mid-mount Lawn Chief |
2-blade with manual lift | |
Cutting width | 36 inches
91 cm |
Photos
Lawn Chief 420 lawn tractor.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Lawn Chief Lawn Tractors Lawn Chief 420.
Estimated Continuous Field Runtime: 2.4 hrs
Approximately 2.4 hours of continuous field operation at ~75% rated power on a full tank (1.5 gal / 5.7 L).
Estimated 75% Load Fuel Burn~0.6 gal/hr (2.4 L/hr)
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
Lawn Chief Lawn Tractors Lawn Chief 420 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Lawn Chief Lawn Tractors Lawn Chief 420.
Converted Equivalents:
Horsepower (HP)12 hp
Kilowatts (kW)8.9 kW
Metric Horsepower (PS / CV)12.2 PS
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