OCR Text |
Show HARDEST USE GIVEN TIRES IN SUMMER Inspection Necessary Before Tours Are Started. Not only during the warm months Is the average passenger car driven at least twice as far daily as In the winter season, but It usually is driven very much faster. For these reasons tires are subjected to more severe service, serv-ice, and troubles with them come very much closer together, in point of time, during this period of heavy driving, which calls for a careful inspection and revision of the equipment before long distance trips and vacations are to be made. In considering the stock of tires on hand the mileage already delivered by each and its age form the best guides as to what future service may be expected ex-pected of it. Knowing how far a certain cer-tain tire has run and subtracting this distance from the average mileage obtained ob-tained from similar tires on the same car gives the most dependable guess as to its "expectancy" to borrow a term from the life insurance man, A useful check upon any such estimate esti-mate is obtainable from its appearance, appear-ance, and an expert tire man, if he has a casing off, so that a thorough examination ex-amination is possible, may make some quite accurate predictions, but much less can be learned from inspecting a casing on the wheel. If the tread has cnt through It in places which have been long neglected and have begun to raise sand blls ters ; If there are any swellings in thi surface or any indications of approach ing failure along the side walls, no great dependence for future service should be placed in It, but if the tread Is practically perfect, barring normal wear, and no signs of weakness are apparent, the casing can be relied upon for the additional mileage Indicated by service previously rendered and past experience. The chief reason for estimating the expected mileage that remains in the casings on the wheels Is In order to provide requisite spars tire equipment, equip-ment, It going without saying that the extra casings carried must be more numerous and of better quality If the tires in service are old and worn than as if they are all new. |