GILLIG LOW FLOOR, Руководство по обслуживанию

Страница: 288 / 506

Brakes & Wheels
288
WHEELS AND TIRES
Mounting and Demounting Safety Precautions
A wheel and inflated tire can be dangerous. It is imperative that personnel
servicing wheels and tires carefully note all precautions outlined in this
section in order to avoid personal injury and costly damage.
• Completely deflate a tire prior to removing it from the vehicle. Reduce pressure first by depress-
ing the valve plunger. Then remove the entire core. Take care to keep your eyes away from the
valve.
• Before mounting a tire and wheel, inspect the wheel carefully for damage, rust, or distortion. Do
not use wheels which are out of shape, rusted, or broken.
• Do not use any lubricant that contains water or a solvent which is harmful to rubber. A combina-
tion lubricant and rust preventative compound is preferable. This protective measure is especial-
ly important with drop center tubeless wheels, as air is contained within the tire by the side wheel
surface.
• Remove rust and other foreign matter. Parts that are excessively corroded are weakened and
should be replaced. Use of a rust preventative compound (not containing water) will minimize
rusting.
• Use only preferred and alternate size wheels for tires and do not exceed the recommended tire
pressures. Neglect of these requirements can result in wheel failures and accidents.
• Make sure the rim ring is seated to the full depth of the groove, fits tightly all around, and is se-
curely locked.
• Use a specially constructed safety cage while inflating tires.
• When changing tires on drop center wheels, remove the wheels and place on a wheel holder or
tire changing machine, removing and remounting the tires in this way. Greater speed and ease
are obtained than by attempting to make the change while the wheel is mounted on the coach.
This will also preclude having to use a hammer to seat the tire.
• Exercise caution when using tire irons. Tire irons must be gripped firmly and hands kept free of
oil and grease when they are used, as they can slip and fly with tremendous speed and force.
• When servicing tires be careful not to drop wheels or assemblies on your hands, feet, or body. Do
not drop the assemblies heavily onto the floor. Use correct form when lifting tires, using your legs
as well as your body. This may help to prevent painful internal injury.
• Use care in hammering rings with steel hammers. Small bits of steel may be broken off the ham-
mer or rim, flying into your face, eye, or body. Use rubber covered, steel headed hammers when-
ever possible. With modern tire changing equipment, pounding is not necessary.
• Tire spreader arms can be dangerous. Keep them closed when the machine is idle and use care in
all respects when operating the machine.
• Always wear goggles or a face shield when mounting or demounting wheels and tires.