Variable speed belt: dismantling and design features

Increasingly common today acquire variators. Despite the fact that used they began a long time ago, now they are appreciated. Like all devices, they are prone to breakdowns.

Particular attention should be paid to the features that you should consider, replacing variable speed belts. Their sizes depend on the intended use of the product. The greatest spread of acquired models with the height and width between 20 mm and 45 mm, respectively.

What you need to know

The work in a timely manner with the help of certain tools. Belt with a large production will not properly transmit torque to the pulleys, causing lost power. Replacement is recommended in specialized workshops from qualified professionals, but this is not possible it can be done independently.

Variable speed belt: design

The design consists of a steel strip covered with wedges. The average belt change is every 200-250 thousand km improperly it could damage that occurs because of metal fatigue. The material is stretched, and the distance between the plates increases, which leads to breakage. In this case, the towing vehicle is undesirable, as the scattered elements of the belt can damage other parts such as pulleys or gears.

To serious consequences that can lead even the failure of the speed sensor, if he says no in a fast moving environment and an electronic control unit shifts the pulleys to the emergency position. In this situation, the variable speed belt can deform and break. If the car moves with average speed, the load on the belt will be minimal. As the sensor is made on the principle of the Hall, that kind of situation happens often. When buying a used car, the sensor is recommended to be changed in the first place. It will not be difficult, as it is secured on top of the casing. Also variable speed belts snowmobiles can be damaged and at low speeds, such as when hitting the kerb during reversing.

The works

To replace the belt, you will need a impact screwdriver, a few clamps, hammer, wrenches, clean the surface of the working table and a few empty storage containers removed small parts. Containers should be placed in a convenient manner as removing details and special moments to record or take photo. All this reduces the risk of errors during Assembly of the variator, because the parsed structure in one day, and proceed to the Assembly only through the week.

For starters, unscrewed the bolts securing the camshaft cover, there should be at least six, and then removed the lid. Remove helical gear, all seized items are added in a prepared container, then turn the box upside down and get the part of the body together with the shaft. Next is unscrewing the bolts on the perimeter with a hammer gently prostukivaniya cover and carefully removed. Also do not forget about the gear. Carefully Unscrew the pump mount, and pulled out the chain from cog. Now the pump cover can be easily removed, it needs to take up the shaft and gently pull up.

The Reverse Assembly is also not difficult. The dismantling of the variable speed side of the box is finished, it is necessary to postpone it to the side and begin to loosen the cover. It is tightly fixed, so it needs to be overcome, for this you will need an ordinary screwdriver. After removing the cover opens the main elements of the variator: two shafts and variable speed belt. With clamps (the best option would be plastic) shrinks the strap, this will prevent its destruction in the further analysis. The belt is pulled out together with the pulleys of the variator, it is necessary to ensure that in the open holes did not get anything extra. Then removed the pulleys from the belt. It remains only to replace the variable speed belt on the new and hold the reverse Assembly of all parts.

Features

Should pay attention to the material used. The fact is that ordinary rubberized textile strap, which is used for air conditioning or a generator, not suitable for work, as it is quick to wear.

Variable speed belts scooter having the special structure, devoid of these shortcomings. In the automotive CVT as a belt is usedwide metal chain consisting of plates. For lubrication it is recommended to apply special liquid that allows the chain to slip.