Before making any adjustments that affect wheel alignment, the following checks and adjustments must be made to obtain the correct suspension geometry:
- Check tire pressure and uneven tire wear.
- Check wheel and tire runout.
- Check for play in the wheel bearings.
- Check ball joints for looseness or wear
- Check tie rod ends for looseness or wear.
- Check for loosening of the steering gear to the body.
- Check struts/shock absorbers for wear, leaks and audible noise.
- Check the steering wheel for increased resistance or poor return due to hard or rusty suspension components.
- Check fuel level. The fuel tank must be full or the vehicle must be loaded with counterweight.
Additional loads such as tool kits, spare wheel, etc. must also be taken into account. If this equipment is normally transported in a vehicle, it must be in place when the wheel alignment is carried out.
Wheel alignment equipment must be used in accordance with the manufacturer's instructions.
Satisfactory operation of the car can be ensured with a wider range of suspension settings, however, for optimal performance, the given values are still more preferable (see section «Service data and specification» at the end of the chapter).
To measure the alignment angles of the front and rear wheels, do the following:
1. Install special equipment according to the manufacturer's instructions.
2. Triple click on the front and rear bumpers («pump» suspension).
3. Measure the wheel alignment angles and record the values obtained.
Note
- It is recommended to record the wheel alignment values «Before» And «After» adjustments.
- When adjusting the alignment of all four wheels of the car, it is recommended to adjust the angles of the rear wheels first, and then the front ones.
4. If necessary, adjust wheel alignment to specification (see section «Service data and specification» at the end of the chapter).
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