Nissan Patrol, Ford Maverick

1988-1997 of release

Repair and car operation

Procedures of service of wheels

Wheels with steel disks

Stamped steel disks are subject to regular cleaning during which from them all extraneous subjects and mud deposits should be removed. Sticking of extraneous subjects conducts to violation of balancing of a wheel and can be at the bottom of car vibrations during movement and non-uniform wear of protectors. The peeled paint should be restored at the first possibility in order to avoid development of corrosion of a disk.

Insignificant deformations of a rim of a disk can be corrected by a rikhtovka way a hammer. The wheel should be thus removed from the car. In case of strong damages the disk is subject to replacement. Good practice is periodic removal of wheels for careful survey of disks on existence of traces of corrosion, cracks and other damages.

Wheels with cast disks

Cast disks, also as well as steel should be cleared regularly of dirt and the stuck extraneous subjects influencing balancing of a wheel. The aluminum alloy of disks is also subject to corrosion, in particular at contact to salty water.

Cast disks, being made of softer material than stamped, it is easier исцарапываются at contact to firm subjects, however scratches and teases do not render essential influence on suitability of a wheel to operation. In case of strong damage the disk is subject to replacement. The deformed and burst cast disks are not subject to regenerative repair.

Care of tires and rotation of wheels

Operation of tires with depth of a pattern of a protector less than 1.5 mm is inadmissible. Sometimes tires fabrichno are completed with wear indicators at which exit aflush with a protector surface the tire also is subject to replacement (see an accompanying illustration).

1 — flutes of a pattern of a protector (admissible depth - not less than 1.5 mm) 2 — indicators of wear of a protector

Tires should be changed also in the presence of obvious defects, both internal, and external. Small punctures and thinnesses can be eliminated in a shinomontazhny workshop. At emergence of any doubts in an assessment of a condition of tires of your car address for consultation to experts in mounting.

Flutes of a protector and board of tires should look round regularly on existence of the extraneous subjects which have got stuck in them, such as nails, small stones, etc. all this sort of subjects should be taken from a protector immediately after their detection. In case of a puncture the wheel should is delivered for repair in a shinomontazhny workshop.
Gates of a rating of tires should be surely completed with protective caps (in order to avoid development of corrosion of a nipple). Besides, them follows regularly (each time at check of pressure of a rating of tires) to clear of dirt and a dust and to check on existence of signs of leakage of air.

Regularly check tires on existence of signs of non-uniform wear and in case of that identification, address to materials of the Section devoted to diagnostics of malfunctions of tires in Introduction to the real Management for the purpose of clarification of the reasons and possible ways of their elimination. If non-uniform wear of tires manages to be revealed at an initial stage then the reason is in due time eliminated, service life of tires can be prolonged.

For the purpose of increase in service life of tires it is necessary to make regularly balancing of wheels and check of adjustment of corners of installation of forward wheels (suspension bracket geometry) at the special stand.

It is useful to make periodically rotation of wheels which also allows to keep more long than the tire in an efficient condition, though is not among procedures, obligatory to performance for the purpose of movement safety. It is necessary to remember also that the wheels equipped with radial tires at rotation can be rearranged only in front back without transfer on an opposite board of the car (see an accompanying illustration).

1 — rotation of wheels without inclusion spare 2 — rotation with inclusion of a spare wheel

Maintenance of demanded pressure in tires is, perhaps, most important of procedures of regular service of wheels. The deviation of pressure of a rating from norm in any party conducts to acceleration of process of wear of tires and even to their gap during movement owing to an overheat. Whenever possible it is necessary to check pressure of a rating of tires on cold wheels (otherwise the result will appear overestimated owing to thermal expansion of air).
As a rule, it is forbidden to complete the car with tires of the different sizes and with a various pattern of a protector. In an ideal all wheels, including the spare should be completed with tires of an identical standard size. Simultaneous installation of the wheels equipped with tires with a radial and usual cord is strictly forbidden.