Bolens lawn tractors
Bolens 528
The Bolens 528 is a 1979 riding lawn mower powered by a 5 hp Briggs & Stratton 206cc 1-cylinder gasoline engine. It features a 5-speed belt-driven gear transmission with 5 forward and 1 reverse gears. The mower has a two-wheel drive with manual steering and mechanical disc brakes. It includes a mid PTO with an independent clutch. The mower weighs 365 lbs and has a wheelbase of 43 inches. It uses 3.5x10 front tires and 4.8x16.8 rear tires. Attachments include a 28-inch mid-mount mower deck with 7 cut positions and manual lift. The serial number decal is located on the right-rear of the mower between the engine and tire.
Power5 hp
Founded28" deck
Model528
Technical Specifications
Detailed specifications and technical data for Bolens 528
Engine
| Type | gasoline |
|---|---|
| Cooling | air-cooled vertical-shaft |
| Cylinders | 1-cylinder |
| Fuel tank | 0.5 gal (1.9 L) |
| Point gap | 0.020 inches (0.508 mm) |
| Rated RPM | 3600 |
| Sparkplug | Champion J-8 |
| Bore/Stroke | 2.56x2.44 inches (65 x 62 mm) |
| Displacement | 206 cc (12.57 ci) |
| Oil capacity | 0.9 qts (0.9 L) |
| Starter type | manual recoil |
| Engine Detail | Briggs & Stratton 130902 |
| Power (gross) | 5 hp (3.7 kW) |
| Sparkplug gap | 0.030 inches (0.762 mm) |
| Oil change interval | 25 h |
Overview
| Year | 1979 |
|---|---|
| Category | Riding lawn mower |
| Horsepower | 5.0 hp |
Dimensions
| Length | 60 inches (152 cm) |
|---|---|
| Weight | 365 lbs (165 kg) |
| Rear tire | 4.8x16.8 |
| Wheelbase | 43 inches (109 cm) |
| Front tire | 3.5x10 |
| Height (steering wheel) | 38.4 inches (97 cm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical disc brakes |
| Steering | Manual steering |
| Operator station | Open operator station |
References
| Books | Rear Engine Riders - Lawn Tractors published in 1979, by Bolens; Riding Mower Service Manual (552568-3) published in 1980 |
|---|
Attachments
| 28" mid-mount mower deck | 28 inches cutting width, mid-mount Bolens, 1-blade with manual lift, overall width 31 inches (78 cm), cut height 1.25 to 3.25 inch (3 to 8 cm), 7 cut positions |
|---|
Transmission
| Type | belt-driven gear |
|---|---|
| Gears | 5 forward and 1 reverse |
| Clutch | idler pulley |
| Transmission | Peerless 730 |
Serial Numbers
| Location | Serial number decal on the right-rear of the mower, between the engine and tire. |
|---|
Power Take-off (PTO)
| Clutch | mechanical idler pulley |
|---|---|
| PTO type | independent |
| PTO location | Mid PTO |