King-Pin Play

Poverty Bay Herald, Volume LXI, Issue 18313, 3 February 1934, Page 9

King-Pin Play

THERE is often uncertainty about 1 what degree of piny, due to normal wear and tear, is permissible at the king-pins. Theoretically, there should be practically none, but actually no matter how conscientiously those parts are lubricated, there is always seme perceptible wear which increases with prolonged use. An effective test for everyday purposes is to jack up each front wheel, and then grasping the two spokes which are vertical, attempt to rock the king-pin from side to side in its bearing. If there is only a barely perceptible degree of looseness the test might bo considered satisfactory, but any pronounced movement indicates that repairs should be carried out. Delay with regard to that often makes the cost of the work higher than it would have been if prompt attention had been given. Where grossly excessive looseness is allowed to persist many bud effects may be produced. The car will not steer well, but feels ."slmky ” ou the road. There may also be wlieeiwobble, and in rare eases the action of the front brakes might bo disturbed. But it is seldom that there is great risk of an actual fracture of the part, although if the king-pins are allowed to pound about in their bearings indefinitely the heavy shocks which they persistently receive might ultimately lead to a failure of the metal.