Features Controls, Introduction, Engine Controls

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Figure 3-1:Tiller featrues and controls. See separate Engine Owner’s Manual to identify engine controls.

Features

and

Controls

WARNING

Before operating your machine, carefully read and understand all safety, controls

INTRODUCTION

This Section describes the location and function of the controls on your tiller. Refer to the following Section, Operation for detailed operating instructions.

Practice using these controls, with the engine shut off, until you understand the operation of the controls and feel confident with each of them.

ENGINE CONTROLS

Refer to the engine manufacturer’s Engine Owner’s Manual (included in the tiller literature package) to identify the controls on your engine.

IMPORTANT: The control for stopping the engine is located on the engine.

WHEEL DRIVE PINS

Each wheel is equipped with a wheel drive Klik pin (A, Figures 3-2 and 3-3) that secures the wheel to the wheel shaft (B). The wheels can be positioned in either a WHEEL DRIVE or a FREEWHEEL mode.

WARNING: Never allow either of the wheels to be in the FREEWHEEL position when the engine is running. Always put both wheels in the WHEEL DRIVE position before starting the engine.

Failure to comply could cause loss of tiller control, property damage, or personal injury.

Before starting the engine, put both wheels in the WHEEL DRIVE position by inserting the wheel drive Klik pins through the wheel hubs and the wheel shaft. Doing so “locks” the wheels to the wheel shaft, causing the wheels to turn when either the

Forward Clutch Bail (all models) or the Reverse Clutch Control (Models 643B & 645A) is engaged.

Use the FREEWHEEL mode only when the engine is not running. In FREEWHEEL, the wheel drive pins are placed only through the holes in the wheel shaft (not the wheel hubs), thus allowing the wheels to turn freely when you manually move the tiller.

To place the wheels in WHEEL DRIVE or FREE-

WHEEL:

1.Stop engine, disconnect spark plug wire from spark plug and allow engine to cool.

WARNING: Do not place tiller on its side when changing wheel drive positions. Doing so could result in gasoline leaking from the fuel tank.

Failure to follow this instruction could result in personal injury or property damage.

2.Raise one wheel about one inch off the ground and place a sturdy support under the transmission.

and operating instruc- tions in this Manual, the separate Engine Owner’s Manual, and on the decals on the machine. Failure to follow these instruc- tions can result in serious personal injury.

Use extreme care when handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel the machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes, and other sources of ignition.

643B, 643C, 645A specifications

The Bolens 645A, 643C, and 643B are celebrated models in the lineup of Bolens garden tractors, known for their durability and versatility. These machines, produced during the 1970s and 1980s, are vintage favorites for homeowners and garden enthusiasts seeking rugged equipment for their gardening needs.

The Bolens 645A is especially noted for its robust build and powerful performance. Equipped with a 7-horsepower engine, the 645A can tackle a variety of tasks, from mowing to snow removal, making it a multipurpose tool in any garden or landscape. One of the main features of the 645A is its hydrostatic transmission, which allows for seamless speed adjustments, providing exceptional maneuverability in tight spaces and varied terrain.

Similarly, the Bolens 643C and 643B models boast impressive features and capabilities. The 643C is renowned for its compact yet powerful 6-horsepower engine. It includes a gear-driven transmission, which offers reliable power transfer and increased efficiency while operating under demanding conditions. The steady performance of the 643C makes it ideal for smaller properties, where precision and control are paramount.

The 643B, while slightly less powerful than its sibling, still holds its own with a solid 5-horsepower engine. It is particularly favored for its ease of use and relatively low maintenance requirements, making it a perfect choice for casual gardeners or those new to the world of garden tractors. Its straightforward controls and simple mechanisms ensure that users can quickly learn to operate it proficiently.

All three models are engineered with a focus on user comfort. The seating is designed ergonomically, allowing users to operate for extended periods without discomfort. Additionally, the accessibility for maintenance tasks is a notable characteristic, ensuring that both professional and amateur gardeners can perform regular upkeep with ease.

In terms of technology, these models utilize straightforward mechanical designs with minimal electronic components, which reduces the likelihood of breakdowns and simplifies repairs. The rugged construction of the chassis and attachments demonstrates Bolens' commitment to longevity and resilience, making these tractors a solid investment for any gardening enthusiast.

In summary, the Bolens 645A, 643C, and 643B models stand out in the garden tractor market due to their powerful engines, user-friendly designs, and robust construction. They represent a blend of efficiency and reliability, catering to a wide range of gardening tasks and maintaining a loyal following among vintage equipment enthusiasts.