Checking wheel angles
1. With special equipment (A) measure the steering angles and compare them with the nominal values.
2. If the measured value differs from the nominal value, check and adjust the wheel alignment.
Checking the effort of turning the steering wheel
3. Place steering wheel in neutral position.
4. Start the engine and increase the engine speed to 1000±100 rpm.
5. Spring dynamometer (A) measure the steering force (IN), turning it 1.25 turns in both directions. Rated value: no more than 34 N.
6. Check up absence of sudden change of effort when turning a steering wheel.
7. If the measured value differs from the nominal value, check the integrity of the anthers of the tips and ball bearings, the tightness of the steering gear and the rotational force of the tips and steering rods.
Checking the return of the steering wheel to the neutral position
8. While driving, make a few quick turns of the steering wheel to the left and right to check for the presence of a restoring moment.
9. While driving at a speed of 35 km/h, turn the steering wheel 90°and release it after 1 -2 seconds. Make sure the steering wheel returns to or close to neutral (± 20°) position.
Note. If the steering wheel is turned too quickly, more force may be required. This is not a malfunction and is caused by insufficient performance of the power steering pump.