Geely Emgrand X7. Manual part — 371

4.4.4.3 Preliminary inspection before tire alignment

Notes:

The following inspection steps must be carried out before positioning the tires; otherwise, new faults may be
caused by incorrect positioning.

1

Check whether the tire inflation pressure is abnormal as well as whether the tire wear is abnormal?

2

Check whether the wheel bearing is loose?

3

Check whether the lower swing arm ball head or the steering tie rod ball head are loose?

4

Check whether the wheel and tire run-out is abnormal?

5

Check whether the warping height of the vehicle is abnormal?

6

Check whether the support assembly is installed wrongly?

Adjust the tire pressure to the standard value,
and replace the tire when necessary.

Inspect whether the wheel bearing bolt is loose
and replace the wheel bearing if necessary.
Refer to 4.2.7.9 replacement of front hub.

Fasten the nut and replace the lower swing arm
ball head or the steering tie rod ball head if
necessary.

Measure and correct the tire run-out.

Correct the vehicle nose before adjusting the
toe-in.

Replace support post assembly, refer to 4.2.7.3
front support post assembly replacement.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

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7

Check whether the lower control swing arm is loose?

8

Check whether the equipment quality of the vehicle is normal or overloaded?

9

Perform four-wheel positioning procedure

Refer to 4.2.7.2 replacement of lower swing Arm
Lining to fasten the control arm connecting bolt
and replace the lower swing lining if necessary.

The vehicle is restored to the curb weight state
when leaving factory.

No

Yes

No

Yes

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4.4.4.4 Wheel bearing diagnosis

Warning: Please carry out road test of vehicle under the safety condition and comply with all traffic
regulations. Do not attempt any operation that could jeopardize vehicle control. If contrary to the above
safety instruction, result in serious injury accident and damage to the vehicle.

1

Carry out road test for the vehicle to confirm the fault phenomenon.

Tips: when the sealed wheel bearing is damaged, the outside impurities enter into the bearing to damage
the damage; during rotating through external force, the bearing will make a sound similar to hum when the
airplane takes off; thus, the noise appears only when the vehicle is in motion and it is stable without
fluctuation and increased with increasing the vehicle speed.

2

Confirm whether the wheel bearing makes noise. If not determining whether the wheel bearing makes
the noise in the process of road test, hoist the vehicle.

To avoid any vehicle damage, serious personal injury or death when major components are dismantled
from the vehicle and the vehicle is supported by a hoist, support with jack the components standing at the
opposite end from which the components are being dismantled of the vehicle.

3

Check whether the wheel is bent?

4

Check whether the wheel is unbalanced?

5

Rotate the tire and wheel assembly to listen to whether the wheel bearing makes a noise.

Warning: when rotating the wheel by hand, the tire must be held by hand

to

rotate.

If the position is

incorrect, it is likely to result in personal injury!

Note: the front wheel bearing is pressed into the steering knuckle; and the rear wheel bearing is located in the
brake drum and the wheel bearing assembly. The inner race is separated from the rear wheel bearing to result
in the emergency of the noise.

Replace the wheel

Carry out dynamic balance for the wheels again

Next

Next

No

Yes

No

Yes

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6

The wheel is shaken by hand to check whether the wheel bearings are loose?

7

Perform a comprehensive comparison test with the normal vehicle in the same type to confirm
whether the noise belongs to the normal working noise.

Refer to 4.2.7.9 replacement of front hub to
replace the wheel bearing.

Refer to 4.2.7.9 replacement of front hub to
replace the front wheel bearing.

No

Yes

No

Yes

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