Chery Fora (Elara A520). Manual — part 115

CHERY A520 SERVICE MANUAL CHASSIS

47

SECTION III REAR WHEEL ALIGNMENT

I.

CHECK

THE

ADJUSTED

REAR-WHEEL CAMBER ANGLE, AND
REAR-WHEEL TOE-IN VALUES:

Criteria: Rear wheel alignment should meet the
requirements as follows:

Rear wheel toe-in

17′20＂±5′(or 3mm)

Rear wheel camber

angle

-0

0

40′±10′

II. REAR WHEEL TOE-IN AND REAR
WHEEL

CAMBER

ANGLE

ADJUSTMENT

1. Rear wheel toe-in adjustment

Toe-in adjustment can be done by use of
optical test instrument or mechanical toe-in
regulator. Wheel aligner or alignment tester
should be installed on the wheels.

Installation should be carried out according to
the concrete instructions of the equipment
manufacturers.

(1) If the rear wheel toe-in is found not to

meet relevant requirements, you can
loosen the adjusting bolt 14 and adjusting
nut 12 of the lower control arm as the
figure illustrated. Note: prevent the nut
from shedding out of the slot.

(2) Screw the eccentric adjusting bolt 14 to

alter the value of rear wheel toe-in until it
complies with the requirements, and fasten
the nut 12 to specified torque (100 ～
120N.m).(The left and right sides are the
same)

Adjusting Nut 12

Adjusting Bolt 14

CHERY A520 SERVICE MANUAL CHASSIS

48

2.

Rear-wheel camber angle adjustment

(1)

As the figure illustrated, loosen the
adjusting bolt 16 and adjusting nut 4 of
the upper control arm, and prevent the nut
from shedding out of the slot.

(2)

Loosen to alter the value of rear-wheel
camber angle until it complies with
relevant requirements, and then fasten
the nut 4 to specified torque (100 ～
120N.m).(The left and right sides are the
same.)

Eccentric

Adjusting Bolt

16

Adjusting Nut 4

CHERY A520 SERVICE MANUAL CHASSIS

49

SECTION IV TROUBLESHOOTING MANUAL

Problem

Possible Reason

Countermeasures

Excessive tire wearing
or asymmetric wearing

Shown in the following items.

Early tire wearing

Improper tire pressure
Improper wheel alignment parameters

Adjust
Adjust

Tire noise

Improper tire pressure
Tire wearing

Adjust

Check, adjust and replace

Road noise or vehicle
body vibration

Deficient tire pressure
Unbalanced tire
Deformation of rim or tire
Asymmetric tire wearing

Adjust
Adjust

Repair or replace

Check, adjust and replace

Up-down vibration of
the steering wheel

Excessive deflexion of tire and rim
Loose wheel nut or axle head
Unbalanced tire
Crack or wearing of engine mounting
rubber
Crack or wearing of transmission
bracket rubber

Replace

Fasten
Adjust

Replace
Replace

Circular vibration of
the steering wheel

Excessive deflexion of tire and rim
Loose wheel nut or axle head
Unbalanced tire
Asymmetric tire wearing
Deficient tire pressure
Damage or wearing of front wheel
bearing
Failure of Steering system
Failure of suspension system

Replace

Fasten
Adjust

Check

Adjust

Replace

Check
Check

Steering

wheel

deflecting to single
side

Improper tire pressure
Excessive tire wearing or asymmetric
wearing
Failure of steering system
Failure of braking system
Failure of suspension system

Adjust

Check
Check
Check
Check

Unstable driving

Inconsistent pressure on both sides of
tire
Deformation of rim or tire
Loose wheel nut
Failure of steering system
Failure of suspension system

Adjust

Repair or replace

Fasten

Check
Check

Brake deflecting to
single side

Asymmetric pressure on both sides of
the tire
Failure of braking system

Adjust

Check

CHERY A520 SERVICE MANUAL CHASSIS

50

Heavy steering wheel

Deficient tire pressure
Failure of steering system
Failure of suspension system
Improper wheel alignment parameters

Adjust

Check
Check
Check

Bad alignment return
of steering wheel

Deficient tire pressure
Failure of steering system
Failure of suspension system
Improper front-wheel kingpin caster
angle

Adjust

Check
Check

Adjust