Jaguar XJ (X350). Manual — part 43

Wheel Bearing Inspection

1. Raise and support the vehicle. For additional information, refer to

<<100-02>>

2. NOTE:

Make sure the wheel rotates freely and the brake pads are retracted sufficiently to allow
movement of the tire and wheel assembly.

Firmly grasp the tire at the top and bottom and move the wheel inward and outward while
lifting the weight of the tire off the wheel bearing.


3. If the tire and wheel is loose on the wheel hub assembly or does not rotate freely, install a
new front wheel hub or rear hub as necessary. For additional information, refer to

<<204-

01>>

or

<<204-02>>

Description and operation

Wheel Alignment Angles

Camber, caster and toe are adjustable on the front suspension system. Only the toe is adjustable on

the rear suspension system. Camber and caster are adjusted by means of eccentric cams on the

lower arm mounting bolts. The front toe is adjusted by use of the front tie-rod. The rear toe is

adjusted by the use of toe link assemblies connecting the knuckles to the rear sub-frame.

Camber

Negative Camber

Positive Camber

Camber is the vertical tilt of the wheel when viewed from the front. Camber can be positive or

negative and has a direct effect on tire wear.

www.

Caster

Item Description

1

Positive caster

2

True vertical

3

Steering axis

Caster is the deviation from vertical of an imaginary line drawn through the ball joints when viewed

from the side. The caster specifications in this section will give the vehicle the best directional

stability characteristics when loaded and driven. The caster setting is not related to tire wear.

Toe

Positive Toe (Toe-In)

Negative Toe (Toe-Out)

The vehicle toe setting:

•

affects tire wear and directional stability.

Ride Height

NOTE:

All ride height measurements are carried out with vehicle empty and 9 liters of fuel in the tank

(showroom condition). The vehicle must be driven above 40 km/h (25 miles/hour) for a

minimum of five minutes to make sure that the reservoir is full.

Front Ride Height Measurement

Item Description

1

Ride height

www.