Wheel Bearing In Curb Weight Position, Lifting Vehicles With Coil Spring
- All bolts on chassis components with bonded rubber bushings must be tightened in curb weight position. Refer to VEHICLES WITH COIL SPRINGS, CHECKING THE CURB WEIGHT POSITION FOR AXLE ALIGNMENT .
- Bonded rubber bushings have a limited range of rotation. Axle components with bonded rubber bushings must be brought into the position they will be in when driving before they are tightened (curb weight position).
- Otherwise, the bonded rubber bushing will have tension, which will reduce the service life.
- By raising the corresponding suspension using the Engine and Gearbox Jack: VAS 6931 and Support Device: VAS 6931/1 , this position can be simulated on the hoist.
Special tools and workshop equipment required
- Engine and Gearbox Jack: VAS 6931
- Support Device: VAS 6931/1 , not illustrated
- Tensioning Strap: T10038
Procedure
-- Determine the curb weight position. Refer to VEHICLES WITH COIL SPRINGS, CHECKING THE CURB WEIGHT POSITION FOR AXLE ALIGNMENT .
-- Note the measurement. This will be needed when tightening the bolts/nuts.
There is a risk of accident from the spring force of the coil springs if the vehicle slides off the hoist.
- Always secure the vehicle before raising the wheel bearing to the curb weight position.
- Before the applicable suspension is raised, the vehicle must be secured to the hoist lifting arms using the Tensioning Strap: T10038 .
-- Remove the wheel. Refer to WHEELS AND TIRES .
-- Install the Support Device: VAS 6931/1 -item A- to the brake rotor -1- using two wheel bolts -2-.
-- Position the Engine and Gearbox Jack: VAS 6931 -item B- on the support device.
-- Lift the wheel bearing housing, until the dimension -a- has been reached.
- Tightening of the applicable bolts/nuts must only occur if the dimension -a- that was measured before starting the procedures has been attained between the center of the wheel hub and the lower edge of the wheel housing.
There is a risk of an accident when lowering or lifting the vehicle when the engine and gearbox jack is underneath it.
- Never lift or lower the vehicle when the engine and gearbox jack is underneath it.
- Never leave the engine and gearbox jack under the vehicle any longer than necessary.
-- Tighten the applicable bolts and nuts.
-- Lower the wheel bearing housing.
-- Lower the Engine and Gearbox Jack: VAS 6931 , remove the Support Device: VAS 6931/1 .
Tightening Specifications
- Refer to WHEELS AND TIRES