Take Jiefang automobile and some imported automobiles for example, the diesel engine is equipped with a silicon oil fan clutch.

The clutch does not need to be maintained in use until it is broken. When the fan clutch is found to be out of order, loosen the fastening nut at the back of the fan, insert the pin head at the end of the locking lug under it into the hole on the driving shaft, and then tighten the nut again. In this way, the fan can be fixed on the shaft and rotate with it to ensure the cooling of the diesel engine. When spare parts are available, replace them with new fan clutches.

Whether it is the silicon oil clutch fan or the electromagnetic clutch fan, the fan can continue to work according to the above method after failure. However, it must be noted that this is only a temporary emergency measure, and the fan should not be in an unregulated working state for a long time.