Bolens lawn tractors
Bolens Estate Keeper 931
The Bolens Estate Keeper 931 is an articulated front-mount mower produced from 1967 to 1969 as part of the Frame Steer Series. It features a 10 hp Wisconsin TRA10D air-cooled 1-cylinder gasoline engine with a displacement of 331 cc. The transmission is a 6-speed gear type with 6 forward and 2 reverse gears. The tractor has two-wheel drive with manual articulated steering and an open operator station. Attachments include 32", 38", and 42" front-mount mower decks, a 32" snowblower, and a 38" blade.
Power10 hp
Founded32/38/42" deck
Model931
Technical Specifications
Detailed specifications and technical data for Bolens Estate Keeper 931
Engine
| Type | gasoline |
|---|---|
| Model | Wisconsin TRA10D |
| Power | 10 hp (7.5 kW) |
| Cooling | air-cooled |
| Starter | electric |
| Cylinders | 1-cylinder |
| Bore/Stroke | 3.125x2.625 inches (79 x 67 mm) |
| Displacement | 331 cc (20.2 ci) |
| Starter volts | 12 |
Overview
| Series | Frame Steer Series |
|---|---|
| Description | Articulated front-mount mower |
| Production years | 1967 - 1969 |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Steering | Manual articulated steering |
| Operator station | Open operator station |
Attachments
| Blade | 38 inches width (96 cm), front-mount |
|---|---|
| Snowblower | 32 inches width (81 cm), front-mount |
| 32" front-mount mower deck | 32 inches (81 cm) |
| 38" front-mount mower deck | 38 inches (96 cm) |
| 42" front-mount mower deck | 42 inches (106 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 6 forward and 2 reverse |