changing tyres or exhausts or both. checking tyres and exhaust systems for defects. deflating tyres, changing them using a jack, hand-held tools and machinery, and inflating the replacement tyres. balancing and re-aligning tyres using lead weights and measuring equipment. Tyre Fitters are responsible for fitting, fixing, removing or replacing tyres on vehicles such as cars and trucks. Tyre Fitters tend to be employed by automotive or tyre centres and wheel alignment specialists.