Simplicity Serf 535
Power
5 hp
Production
1970-1972
Engine
Gasoline, 1-cylinder
Transmission
Belt-driven gear
Weight
228 lbs (recoil) [103 kg]
Drive
2WD
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Introduction
Simplicity Serf 535 Lawn Tractor
The Simplicity Serf 535 is a compact lawn tractor manufactured between 1970 and 1972. Part of the Allis-Chalmers group, this machine was designed for residential lawn maintenance and landscaping tasks, featuring a lightweight chassis and a straightforward mechanical architecture.
Engine and Powertrain
The tractor is powered by a Briggs & Stratton 130000 series, single-cylinder, air-cooled gasoline engine. It delivers a gross power output of 5 hp (3.7 kW) from a 206 cc displacement. The fuel system utilizes a carburetor, and the engine is started via a manual recoil system, with an optional electric start available. The oil capacity is 0.9 liters.
Transmission and Drive
Power is delivered to the wheels through a belt-driven gear transmission, providing three forward gears and one reverse gear. This two-wheel drive machine is operated via a manual steering system and employs mechanical band brakes to control speed and movement.
Operational Features
The Serf 535 includes an independent mid-mounted PTO (Power Take-Off) engaged by a manual clutch, allowing for the operation of a 28-inch mower deck. The operator station is of the open type, prioritizing simplicity and ease of access during operation.
Dimensions and Tires
Built on a 94 cm wheelbase, the tractor has a total length of 130 cm and a width of 66 cm. The total weight varies between 103 kg and 112 kg depending on the starting configuration. It is equipped with lawn and turf tires, sized 4.10/3.50-4 at the front and 16x6.50-8 at the rear, suitable for grass surfaces.
Conclusion
The Simplicity Serf 535 is a reliable utility machine for residential lawn care, characterized by its manageable size and basic mechanical design. It remains a standard example of 1970s light-duty lawn tractors intended for private landowners.
Production Information of Simplicity, Serf 535
- Lawn tractor
| Manufacturer | Simplicity (a part of Allis Chalmers) |
|---|
Dimension and Tires Information of Simplicity, Serf 535
| Wheelbase | 37.3 inches [94 cm] |
|---|---|
| Weight | 228 lbs (recoil) [103 kg] |
| Height (steering wheel) | 32 inches [81 cm] |
| Length | 51.5 inches [130 cm] |
| Length(optional) | 248 lbs (electric) [112 kg] |
| Width | 26 inches [66 cm] |
| Lawn/turf front | 4.10/3.50-4 |
|---|---|
| Lawn/turf rear | 16x6.50-8 |
Engine Specifications of Simplicity, Serf 535
- Briggs & Stratton 130000
- Air-cooled vertical-shaft
- Gasoline
- 1-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 206 cc [12.57 ci] |
| Fuel system | Carburetor |
| Bore/Stroke | 2.56x2.44 inches [65 x 62 mm] |
| Oil capacity | 0.9 qts [0.9 L] |
| Oil capacity(optional) | Electric |
| Starter | Manual recoil |
| Power (gross) | 5 hp [3.7 kW] |
Transmission Information of Simplicity, Serf 535
Transmission variants 1
| Type | Belt-driven gear |
|---|---|
| Type(optional) | SAE 90 |
| Oil type | SAE 90 |
| Gears | 3 forward and 1 reverse |
| Oil capacity | 1 qts [0.9 L] |
Mechanical Specs of Simplicity, Serf 535
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Power Information of Simplicity, Serf 535
| Mid PTO | Independent |
|---|---|
| Clutch | Manual |
Electrical System of Simplicity, Serf 535
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
Its power puts it in the 10th percentile of 1970s models in our database (1008 machines).
Frequently asked questions
How much horsepower does the Simplicity Serf 535 have?
The Simplicity Serf 535 delivers 5 HP.
What years was the Simplicity Serf 535 produced?
The Simplicity Serf 535 was produced in 1970-1972.
What engine does the Simplicity Serf 535 have?
The Simplicity Serf 535 is powered by a Gasoline, 1-cylinder engine.
What transmission does the Simplicity Serf 535 use?
The Simplicity Serf 535 uses a Belt-driven gear transmission.
How much does the Simplicity Serf 535 weigh?
The Simplicity Serf 535 weighs 228 lbs (recoil) [103 kg].
Is the Simplicity Serf 535 4WD?
The Simplicity Serf 535 is available in 2WD.