Page 48 - Demo

Page 48.Alvis Three Litre Shop Manual - T.A. 21 and T.C. 21To FIT A TYRE:%u2014%u2013 Place the cover on top of the wheel and push as much as possible of the lower bead by hand into the well of the rim. Insert a lever to prise the remaining portion of the lower bead over the rim flange.%u2013 Slightly inflate the tube until it begins to round out and insert it in the cover with the valve through the hole in the rim. (Take care that the valve, which is fitted in the side of the tube, is on the correct side of the rim.).%u2013 Commence to fit the second bead by pushing it into the well of the rim diametrically opposite the valve.%u2013 Lever the bead over the flange either side of this position, finishing at the valve until the bead is completely fitted.%u2013 Ease the valve in the rim hole and push upwards by hand to enable the beads to seat correctly, and then pull the valve firmly back into position.%u2013 Inflate the tyre and see that the beads are seated evenly round the rim; check by the line on the cover.%u2013 Remove the valve core to deflate the tube completely, but do not disturb the beads of the cover. Then re-inflate to recommended working pressure. The object of double inflation is to permit any stretched portions of the tube to readjust themselves in the cover and relieve any strains in the tube.Caare off tthe TyresOil and grease have a detrimental effect on rubber and should never be allowed to remain in contact with the tyres for any length of time. Oil can be removed from the tyres by the use of a rag and a very little petrol; use petrol sparingly, as this is also a solvent of rubber.Fierce acceleration and braking cause excessive tread wear due to the abrasion of the tyre against the road surface.Bumping and scraping against the curb stones is likely to crush the tyre cords against the steel rim and eventually result in tyre failure, apart from the likelihood of misaligning the front wheels, causing further tyre wear.It is a good practice to change the wheels and tyres round at intervals of about 2,000 miles (3,200 km.) and to bring the spare into use, thus securing evenness of wear and preventing the spare being kept out of use too long.When changing tyres advantage should be taken of the opportunity to inspect them for surface cuts and embedded flints.Wheel BaalaancceWheels and tyres are balance checked to prescribed limits during manufacture, but the balance of the tyre and wheel assembly may be affected by subsequent tread wear, tyre and tube repairs, and other causes. A roughness and vibration may be felt when driving the car if wheel unbalance exceeds desirable limits.If a wheel develops a heavy spot and is thrown out of balance it should be rebalanced by a service station equipped with a wheel balancing machine.Wheel aand HHubub Mai ainttenaancceWEEKLY. %u2013 Check the tyre pressures. EVERY 2,000 MILES (3,200 K.M.). %u2013 Change round and inspect the wheels and tyres including the spare. %u2013 Oil the spare wheel tray latches.EVERY 10,000 MILES (16,000 K.M.). %u2013 Refill the front hubs with grease. %u2013 Apply a small quantity of grease through both rear hub nipples.