Low gear: features and operation

Reduced transmission allows the SUV to acquire full cross-country ability and the ability to overcome obstacles that are beyond the power of any other machine. When it is turned on, the wheels rotate at a lower speed, while the engine does not change.

Description

Reduced gear refers to the transmission element and is installed in the transfer case. In it from the engine the torque is transferred to axes of leading bridges of the car.

The full power of the engine is achieved with the set number of revolutions, at this time, through the transmission, the torque is transmitted to the driving wheels. Each unit has its own speed, leading to a maximum torque.

When a downshift is required

The device of standard transmission differs uniform and correct transfer of engine power at different speeds. For example, you can start the movement in the first gear at speeds slightly higher than idle, and at several thousand revolutions and fifth gear accelerate to high speed. The maximum power develops most often in the latter case. With such turns on the first transfer to go it will not be possible, and capacity even does not reach average values. It also becomes impossible to ride on a high obstacle: the wheels can fall into a slip, and the engine - stall. There is a similar situation during driving on snow, mud and other difficult conditions. In other situations, for example, in overcoming stony precipitous roads, a careful and unhurried course with increased power is required.

In such cases, reduced transmission becomes particularly useful. It has a fairly high gear ratio, which makes it possible to reduce the speed of the wheels and simultaneously achieve maximum power. Such characteristics provide, with a competent approach, a significant advantage when climbing a slope with a large angle, off-road and other complicated conditions.

Operation

SUVs with reduced transmission and locking can be either with an automatic gearbox or with a manual gearbox. Not all cars, especially new ones, have a standard version with a separate dispensing box. If it is absent, the reduced gear is switched on using buttons or a special lever.

Many high-grade off-road cars do not have a distributing box because of that it increases cost of the car and its weight. It does not have some jeep options to find the most economical effective solution. Sometimes such a box is missing in older models. An example can be made by LUAZ - its front-wheel drive is the driving one, the rear connection is possible via the gearbox. But in a reduced gear the car only moves forward, which becomes a significant disadvantage in certain situations.

Features of use

If the reduced gear does not turn on, you should slow down the car, but it is best to connect before the traffic starts. When the clutch is pressed to the desired position, the corresponding lever is shown. New cars can be electronically switched on with a special button.

When using such a gear, you can not move over a hard surface, since the transmission will have a significant load at that time. To achieve maximum effect, you need to move at an increased speed. It is important to follow the clutch. Despite the fact that there is a decrease in the load on it several times, it is possible, by inexperience, to damage it by a sharp lowering, after the engine reaches its maximum speed.

A downshift has a certain number. With its increase, the car starts to move more efficiently, regardless of the speed.