Reducer for walk-behind tractor: description and varieties

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

In any garden equipment, whether it be a cultivator or a walk-behind tractor, there is a gearbox. It is the basis of the design and ensures the functioning of the equipment. A ready-made gearbox for a walk-behind tractor can be purchased at a store or made independently, significantly saving the family budget.

Description

The main purpose of the device is to transfer rotation to attachments and wheels. It controls the direction of movement, speed and rotation. The gearbox of the “MB 1” walk-behind tractor is subject to rapid wear of the belt clutch and its rupture. In the “MB 2” device, there is the possibility of mounting an additional belt on the motor pulley, due to the built-in reverse gear.

The new gearbox model has many positive aspects, but despite the improvements, it is not without drawbacks. A similar engine with a gearbox for a walk-behind tractor has a lower number of revolutions compared to its predecessor. At the same time, this parameter does not depend on speed and increases the time spent on cultivating the land. Also worthnote the unlocking of the wheels, which occurs when driving with the trolley at the second speed. Because of this, the walk-behind tractor begins to spontaneously turn to the left, which is very dangerous when driving next to traffic. It takes a lot of skill and care to align the movement of vehicles.

On the outside of the gearbox are parts that provide gear changes. When you press the gearshift lever, which has five positions, the clutch is disengaged with a fork, and then returns. If the drive and the right axle shaft are connected, the walk-behind tractor will slow down.

Varieties

There are several main types of gearboxes, which are divided according to their purpose:

• Chain have a metal chain in their design, which ensures the scrolling of the sprockets. The scheme of this option is quite simple and is complemented by a bolted connection. Among the advantages, it is worth noting ease of use, reliability and the presence of a reverse function.
• Gear-worm. They are optimally suited for motors with a vertical crankshaft. A distinctive feature is high performance and minimum noise level. Various materials are used for manufacturing, including inexpensive steel and cast iron alloy.
• The belt gearbox for a walk-behind tractor is similar to the chain variety, the only difference is a belt in the form of a rectangle or wedge used instead of a chain. Belt fixation is provided by grooved pulleys.
• Gear can function in an angular or straight pattern, depending on the design. The gear is mounted on shafts and can be tapered or cylindrical. A similar gearbox for the Neva MB 2 walk-behind tractor is difficult to maintain, but this disadvantage is compensated by high power, due to which it is often used in professional garden equipment.

Maintenance

Regular oil changes are of particular importance. If this rule is not observed, the additives and other ingredients that make up the composition lose their properties and do not provide protection for parts. As a result, foaming of the composition and jamming of the gearbox are possible.

The oil level is checked with a dipstick, it should not be too low, but an excessive amount will not affect the device in the best way. The gearbox for a walk-behind tractor will last much longer when using high-quality oil, so the composition is selected in accordance with the operating conditions of the equipment.

Breakdowns

Even with a timely oil change, the mechanism may break down, which often manifests itself in the form of a knock. There are several main breakdowns, among which the following are worth highlighting:

• Open circuit, hard to miss due to gear jamming. Repair in this case consists in replacing the damaged element.
• Damage to the axle disengagement assembly.
• Oil leakage indicates worn rubber seals.
• Change system settingsswitching. Adjustment is made by loosening the screws and engaging first gear.
• Often there are difficulties in fixing the transmission, in this case it is worth replacing the brushes that are out of order.

What you need to know

If it becomes necessary to replace components, you should purchase original parts from reputable manufacturers. Most breakdowns can be fixed by anyone, but if difficulties arise, you can always contact specialists. Also, do not forget about the break-in, which will significantly increase the service life.

Today, a reduction gear for a walk-behind tractor is increasingly being used, which you can make yourself. Usually, for this, improvised materials and parts taken from other equipment are taken. This design provides the ability to operate on heavy complex soil. It becomes indispensable with a lack of power equipment and frequent towing of wheels. The design of the gearbox is selected according to the type of transmission, which consists of a gearbox, differential and clutch.

Cost factors

Today, in the assortment of stores you can find a suitable gearbox for the Neva walk-behind tractor for any purpose and financial possibilities. The cost is determined by the following factors:

• device specifications;
• presence of reverse gear;
• power;
• manufacturer;
• materials used in production;
• functionality.