Car Automotive

Always install a new radial tube and a new radial flap in a new tire. Use only tubes designated for radials and make sure the proper size tube and flap is used. Never use undersized tubes. Certain precautions must be taken when mounting used flaps, or damage to the tire and tube will result. New truck and bus flaps can be used with any one of several different tire and rim sizes as recommended. But, once used, the flap must be remounted in the same size tire and on the same size rim from which it was removed. Always use a flap of adequate width to prevent tube pinching.

As a precaution against flap failure,mark the tire and rim size on the flap at the time of removal (if inspection shows that it is not damaged and can be used again). When the flap is again mounted,this marking protects against the danger of misusing the flap with the wrong size tire and rim.

The valve core provides a temporary air seal while air pressure checks are being made, but it will leak air slowly if the cap is loose, missing, or damaged.Use a sealing-type valve cap. A metal cap is preferred but a sealing-type nylon cap is acceptable.

In the case of used tires and tubes,recondition the valve stem every time a tire is mounted. Recondition the threads on both the inside and the outside of the stem with a valve stem rethreader tool. Install only new valve cores. Used or dirty valve cores may be defective.Don’t take a chance. Valve cores must be stocked in clean closed containers at all times, since a small particle of dirt will render a core ineffective.

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