Toyota Land Cruiser 100 / Amazon, Lexus LX 470

Since 1997 of release

Repair and car operation

Corners of installation of wheels

The general information

Corners of installation of wheels of the car


And – In = With (the Corner of disorder of wheels in degrees) D = the Corner of a longitudinal inclination of an axis of turn of a wheel (выбег) in degrees Е – F = Convergence in millimetres G = Convergence in degrees

PERFORMANCE ORDER

1. Corners of installation of forward wheels define geometry of position of the last concerning a suspension bracket of the car and a road covering. Infringement of adjustment of this geometry conducts to decrease in controllability of the car and increase of speed of deterioration of tyres. Into number of corners of installation of forward wheels of the car subject to the control enter disorder, выбег (a corner of a longitudinal inclination of an axis of turn of a wheel) and convergence (address to an illustration above).
2. Adjustment of geometry of a forward suspension bracket demands application of the special expensive both bulky equipment and it is necessary to charge its performance to experts of car-care centre.
3. As convergence is called the data size to each other forward edges of wheels of the car. Such infringement of parallelism of installation of wheels allows to minimise deterioration of a protector for the account юза at fulfilment of turns. At zero convergence distance between forward edges of wheels to equally distance between their back edges. Normal convergence usually does not exceed inch shares (1 inch = 2.54 sm). Adjustment of convergence of forward wheels is carried out by updating of length of steering draughts at the expense of change of position of their tips. Infringement of adjustment of convergence conducts to acceleration of deterioration of protectors of tyres for the account проскальзывания them on a road covering.
4. As disorder is called the angle of slope of a plane of wheels concerning a vertical. If wheels are inclined by upper edges outside, disorder is called as positive, and on the contrary. The disorder size is measured in degrees. Correctness of adjustment of disorder defines size and position of a stain of contact of protectors with road and allows to compensate changes in geometry of a suspension bracket during fulfilment of turns and at car movement on a rough road covering. Disorder updating is made by rotation of the special adjusting cams established in a forward and back part of the top levers of a suspension bracket.
5. Выбегом the corner of a longitudinal inclination of an axis of turn of a wheel, i.e., a corner of a deviation from a vertical of an axis of turn of a wheel in a plane of the last is called. If the turn axis is inclined back, выбег is called as positive, and on the contrary. Updating выбега is made simultaneously with disorder updating. By analogy, a cross-section angle of slope of an axis of turn of a wheel name a corner of a deviation imagined шкворня from a vertical in a plane, perpendicular ДП the car.

Check and adjustment of corners of installation of wheels

Preliminary checks

PERFORMANCE ORDER

1. Estimate degree of deterioration of protectors, check up pressure of a rating of tyres.
2. Make sure that the size of lateral palpation of wheels does not exceed 1.2 mm.
3. Check up adjustment of a pretightness of bearings of forward wheels.
4. Estimate reliability of fastening of components of a forward suspension bracket and a steering drive. Estimate size люфта spherical support.
5. Check up serviceability of a condition of shock-absorbers.

Check and adjustment of disorder and corners of longitudinal and cross-section inclinations of an axis of turn of a wheel

PERFORMANCE ORDER

1. Tyre out the car on the adjusting stand and make measurement listed in heading of subsection of under control parametres (Specifications see).

2a. If the size of disorder and-or a corner of a longitudinal inclination of an axis of turn of a wheel (выбега) does not correspond to the accepted norms, it is necessary to make corresponding updating by rotation forward...

2b.... And-or a back adjusting cam of the bottom lever of a suspension bracket (address to accompanying illustrations).

3. If after performance of adjustment of disorder and выбега the corner of a cross-section inclination of an axis of turn of a wheel falls outside the limits an admissible range, it is necessary to check up a condition of a rotary fist and elements of a forward suspension bracket.

Check and adjustment of convergence of forward wheels

PERFORMANCE ORDER

1. Shake the car on purpose усадки suspension bracket elements.
2. Establish forward wheels in rectilinear position and прокатите the car forward approximately on 5 metres.

3. Note the central points of the back parties of protectors and measure distance between them () (address to an accompanying illustration).

4. Прокатите the car forward so that the put down labels have moved on height of an axis of a wheel, but from the forward party of the last and make similar previous the measurement () (address to an accompanying illustration).

5. The convergence size is defined by subtraction from result of the first measurement result of the second (In–). Compare the received difference to requirements of Specifications.
6. In case of need ослабьте nuts of coupling collars of tips of steering draughts and in appropriate way correct length of the last. Track, that after end of updating of length of draughts remained equal each other.