Checking and tensioning the V-belt (Opel Kadett D)

Specialized workshops use the KM-128 control device to check the belt tension. If such a device is not available, the belt tension cannot be accurately checked and set, since a new V-belt has a large pre-tension. If the device is not at hand, the tension can be checked by pressing with a finger where the device is applied. The deflection should be approximately 15 mm. In any case, during the next maintenance in the workshop, the V-belt tension should be checked, since if the tension is incorrect, the belt may slip.

Examination

To check the tension, if possible, select the middle point between two pulleys.



Place the control device on the belt so that it hangs from it.



Press the lever -H- until the point -D- of the device touches the belt.

When you touch the belt, a buzzer will sound.

Take the readings from the school device and multiply by 100. This value corresponds to the belt tension in Newtons (N).

The tension should be 250-300 N, in no case should it be less than 250 N.

Note: The tension of the new belt is 450 N.

If the tension value is below the standard, tighten the belt.

Tension

(Text copied from an internet website opelbook.ru)

Loosen the tension plate, press the generator with a crowbar, tighten the tension plate.

Check the belt tension and repeat installation if necessary.