The generator device is one of the main nodes in the power supply system of the vehicle electrical equipment. In order for the node always worked in normal mode, all its elements must be in working condition. Learn more about what is a roller of the tensioner of the car generator belt and how it changes, find out below.
Purpose and function
The purpose of the tension is to ensure the uninterrupted functioning of this node. The latter, in turn, allows you to power all the electrical equipment of the machine. The tension of the generator belt plays an important role in the work of the unit, since if it is insufficient or redundant, it will lead to incorrect work of the latter. To the tension parameter is optimal, the model belt tensioner is used on modern machines.
This element usually has a simple design and is fixed on the engine block thanks to a special bracket.
The design of this device includes:
- the roller of the tensioner of the generator belt along with the bearing device;
- belt pulling roller screw.
If you speak directly about fixing the bracket, this component is usually installed on the motor using multiple screws. Depending on the machine, the mount can be carried out with spills fixed with nuts. Under the fact that the tension roller of the generator performs the function of adjusting the degree of stretch.
Depending on the engine, the tension roller of the generator belt may have differences in its design. For example, one of the easiest options is a roller in which the center is shifted - such devices are usually fixed with the screw. According to this scheme, the strap stretch is made during the rotation of the eccentric.
An equally common option is considered to be the device located on the movable bracket described above - in this case the stretch is also carried out by a bolt. In both options, the working condition of the element in any case needs to be monitored if you notice that the item was worn out, it should be changed as quickly as possible. Otherwise, it is possible to face the problem of wear and a complete failure of the part, which will lead to the impossibility of the normal functioning of the generator node.
Guide to replace your own hands
How is the replacement of the roller of the tensioner of the generator belt at home? First of all, it is necessary to dismantle the strap itself, after the removal of which you need to check the status of the bearing element. In the normal state, the bearing should not be gaps when you start rotating it with your hand. In addition, the device rotation itself should be freely, without any extraneous sounds (video author - Roman Romanov).
It will not be superfluous to produce visual diagnostics of the part bracket and evaluate whether the screw is not worn out. In the course of the use of a car, crosteins may be bent, which contributes to the displacement and need to repair the belt tensioner. In the event that the bracket is twisted, it will lead to the fact that the load on the strap will be uneven, respectively, one side will stretch more than the other. Ultimately, the strap is simply quickly wear out, it will begin to make an uncharacteristic noise, whistling, can slip, and in some cases can be flown at all.
As for the curvature of the bracket, this problem is mainly relevant for older vehicles, but sometimes it is manifested in relatively new cars. If we are talking about the car, which has been in operation for a long time, then the problem is to wear, and if the bracket twisted on a new car, most likely, this is a factory marriage. If you notice a malfunction in the work of the bearing device or other system components, it is desirable to replace them.
So, the replacement of the tensioner is made as follows:
- You must first lock the crankshaft so that it does not move. To do this, between the clutch pulley cloves, you need to install a thick screwdriver or the appropriate diameter scrap.
- After that, we need to weaken the screw that fixes the roller itself or the bracket, in this case it all depends on the particular engine. Having done it, the strap stretch should relax.
- The next step will be the unscrewing of the screw that locks the roller itself.
- Before changing the element and how to pull the generator belt, check the bracket status. If he is in a sad state, then it is better to change it.
