Chery A15. Manual — part 216

Axis of thrust alignment of rear wheel toe-in will affect front monowheel toe-in,

therefore rear wheel shall be adjusted before front wheel during four-wheel alignment.

I. Measuring Vehicle Height

1. Front Measuring Point
The center point of the bolt connecting rear axle

and vehicle body (as the arrow points).

Note: check left and right side for height

consistency before checking wheel alignment.

Inconsistent height between left and right side of

vehicle body indicates damaged or deformed front or

rear suspension component.

II. Fixing Aligner on Wheels

Fix as per manufacturer’s instruction.

III. Measuring Camber Angle

Angle to be Measured

Value

Rear wheel camber angle

-1°30′±10′

Note: Rear wheel camber angle is non-adjustable. In case abnormal tire wear of

rear wheel is found, check rear suspension for wear and deformation.

IV. Measuring Rear Wheel Toe-in

Car Model

A15

Rear wheel toe-in

20′±10′

Note: Rear wheel toe-in value exceeding limits will affect inner and outer side

wear of tires. Too much inconsistency between left and right rear wheel toe-in

will affect vehicle steerability, therefore rear wheel toe-in is a critical parameter

among chassis alignment angles.

Section Three: Front Wheel Alignment

I. Fixing Aligner on Wheels

Fix as per manufacturer’s instruction.

II. Checking and Adjusting Kingpin Caster Angle and Wheel

Camber Angle

Angle Value

Front wheel camber angle

-30′±20′

Kingpin caster angle

1°30′±30′

Note: caster angle shall be adjusted before camber angle.

1. Kingpin Caster Angle

Kingpin caster angle is ensured by design structure, and is nonadjustable in service.

Effects of Caster Pin

The primary function of caster angle is to ensure that the vehicle is running forward.

In case of positive caster angle value, vehicle inside will decline during steering,

which will lift chassis and increase load of steering knuckle. In case of same caster

angle with both wheels, the vehicle will resume the forward direction after steering.

Increase of positive caster angle will improve steering wheel stability, while the

required turning force during steering will also be increased; decrease of positive

caster angle will lower stability and decrease the required force during steering.

Caster angle has no effects on tire wear, it serves to running direction and

automatic return of front wheels after steering. For vehicles equipped with

traditional manual steering wheel, small or even negative caster angle will facilitate

steering. For vehicles equipped with power steering wheel, bigger positive caster

angle will work better, and increase of positive caster angle will increase the

required turning force but improve vehicle stability of forward running.

2. Adjusting Camber Angle

Individual suspension and wheel steering knuckle need no camber angle adjustment

under normal condition after assembling. Deviation of wheel camber angle from

tolerance range can be calibrated by connecting bolt of individual suspension and

steering knuckle.

(1). Check (visually) driving system components before calibration, and replace

damaged components.

(2). If front wheel camber angle is found overproof, loosen connecting bolt of front

shock absorber and steering knuckle and move wheel to calibrate.

(3). If further calibration is necessary, replace the M12 bolt with M11 bolt to adjust
camber angle with allowable camber angle change being ±10, as shown in the

figure.

(4). Connection between suspension lower control arm and steering knuckle is a

clearance fit. Loosen connecting bolt and move wheel to adjust camber angle.

III. Checking Front Wheel Toe-in

Toe-in (total):

Car Model

A15

Front wheel toe-in

0′±10′

Adjusting Toe-in

Optical tester or mechanical toe-in adjuster may be used in toe-in adjustment.

(1). Align the wheel before adjustment as per tester requirements.

(2). Loosen right steering tie rod locknut and elastic jacket snap ring, adjust toe-in

adjusting rod length to specified value as required.

(3). Tighten locknut and refix jacket snap ring, and check locknut tightness and jacket

position.

(4). Check steering wheel for horizontality after toe-in adjustment. In case of

non-horizontal steering wheel, loosen steering wheel locknut and adjust the

horizontality, then tighten the locknut to required torque.