Drive belts always stretch a little in use, because of the strains put on them by Driving the water pump and generator, As well as the fan itself if it is in the system. Age and continual flexing also cause belts to crack and deteriorate. Also, read – 3 Causes of Drive Shaft Noise (When Turning, Braking or in Reverse) Stretching slackens a belt so that it slips on the pulleys. A cracked belt will eventually break. The tension and general condition of the belt should, therefore, be checked at least monthly. The ignition light comes on to give immediate warning of a broken belt, As the generator stops working. But the first warning of a slipping belt may well … Continue reading Checking, adjusting and refitting drive belts