Wheel Alignment - Specifications & Procedures: Other Volvo S80 I

FLOOR JACK OR HOIST

When lifting the vehicle, the correct jacking points given below must be used. (Scheme 2) The jacking plate must have a rubber pad to prevent damage to the vehicle.

For the front of the vehicle, a wooden load relief plate (200 x 200 x 20 mm) must be used behind the sub-frame bracket. For the rear of the vehicle, a wooden spacer (170 x 80 x 50 mm) must be used at the front of the sub-frame bracket.

Scheme 2

Front Measurement

1. Lift up front end of vehicle under the control arms as close to the ball joints as possible. (Scheme 3) Check for play or looseness in the steering gear or tie rods, the wheel bearings, the upper spring strut mountings and control arm ball joints and bushings. If there is play in any of the above components, it must be corrected before an alignment can be performed.
2. Set up and calibrate test equipment according to manufacturer's instructions. Position the turntables under the front wheels. Use turntables which take up lateral movement. The car must stand level when the front wheels are on the turntables. Bounce the front suspension heavily a few times when the car has sunk onto the turntables.
3. Check the camber angle on both sides. Check measurement against specification. See «WHEEL ALIGNMENT SPECIFICATIONS»(ref-160865-S03633902912004030400000). If the front camber angle is not within specifications, adjust as needed. See «CAMBER ADJUSTMENT»(ref-160865-S02301237072004030400000).

Scheme 3

Rear Measurement

1. Check for play in the wheel bearings, the lateral link bushings and the control arm bushings. Set up and calibrate the test equipment being used. The car must be on a flat surface with the wheels on moveable plates.
2. Check camber angle. See «WHEEL ALIGNMENT SPECIFICATIONS»(ref-160865-S03633902912004030400000) . Rear camber is not adjustable. If the rear camber angle is not within specifications, replace the faulty or damaged component.

Check the caster angle on both sides. Check measurement against specification. See WHEEL ALIGNMENT SPECIFICATIONS . The caster angle must not vary by more than 1.0° between the left and right sides. Caster angle is not adjustable. If the front caster angle is not within specifications, replace the faulty or damaged component.

1. Check that the instruments are adjusted in relation to each other on the front and rear axles. Front wheel toe-in is adjusted in relation to the car's thrust line. Thrust line is the line created when the rear wheels toe-in angles are equally divided. (Scheme 4)
2. The difference between the wheel symmetry line and the thrust line is called the thrust angle. This angle may deviate by a maximum of 15° from the symmetry line.
3. Center and lock steering wheel. Check the front wheel toe-in. Check measurement against specification. See «WHEEL ALIGNMENT SPECIFICATIONS»(ref-160865-S03633902912004030400000). Adjust as needed. See «TOE-IN ADJUSTMENT»(ref-160865-S36544087242004030400000).

Scheme 4

Check the toe-in. Check that the instruments are adjusted in relation to each other on the front and rear axles. See WHEEL ALIGNMENT SPECIFICATIONS . Adjust as needed. See TOE-IN ADJUSTMENT .