Chery Tiggo T11 LHD. Manual — part 19

T11 Service Manual Chassis System

2. Assembly Drawing of Front Brake

(1) Front wheel knuckle

(5) Front brake disc

(2) Knuckle hub Bearing

(6) Brake caliper assembly

(3) Front wheel hub assembly

(7) Disc brake assembly of front knuckle

(4) Dust board

T11 Service Manual Chassis System

3. Installation of Disc Brake Assembly of Front Knuckle

1) Put knuckle into clamp, and fix dust board

onto knuckle, then use bolt to tighten it. The

tightening torque shall be 9~11N.m.

2) Press the front wheel hub-bearing unit into

the knuckle.

3) Bolt brake disc onto front wheel hub

bearing unit. And the tightening torque shall

be 7~9N.m.

4) Joint brake caliper assembly and knuckle

via two bolts. The brake disc shall be

located between brake linings. And the

tightening torque shall be 85±5N.m.

Note: grease shall not exist on the brake disc

and brake lining.

T11 Service Manual Chassis System

4. Installation or Replacement of Front Brake Discs

1) Remove wheels

Remove and clean the brake linings if

necessary.

Note: if less than the minimum thickness of

brake disc, it is necessary to replace the brake

disc. Always replace the brake discs (of the

same axle) in pairs! If brake disc is replaced,

brake linings must be re-fixed as well.

2) Loosen the fixing bolt of brake caliper

assembly, then remove the brake caliper

and tie it on one side.

Hint: Keep connection between brake lines.

3) Loosen the locating screw and remove

brake disc.

Caution: under no circumstances could it use hammer or equivalent to knock the worn ring to

loosen the brake disc! Use rubber hammer to carefully knock the body of brake disc if necessary.

Installation instructions:

Replace the fixing bolt of brake disc, and thoroughly clean the contact surface of hub, then remove

corrosions if necessary. Uneven contact surface may result in deformation of brake disc, and

refer to specific technical data for tightening torque. Installation sequence is opposite to that of

removal.

5. Diagnostic Information of Brake Discs

1) Inspection of brake disc thickness deviation

Use micrometer to measure the thickness of random four or more points on the brake disc.

Measure all of the thickness at the points that have the same distance from brake disc edge. If the

thickness deviation of brake disc exceeds 0.013 mm, when braking, it may result in brake pedal

pulsation or front end vibration. Replace the brake disc that cannot meet the above requirements.

T11 Service Manual Chassis System

2) Inspection of transverse jump of brake disc

Remark: Once disconnecting the brake disc from the flange of wheel bearing, rust or impurities on

fitting surface between brake disc and flange must be cleaned, otherwise it may increase brake

disc transverse jump or brake vibration. Keep the wheel on the vehicle, and inspect its transverse

jump so as to obtain more accurate overall jump indications at actual braking conditions. If there

is no certain device along with the vehicle to inspect the wheel, remove the wheel while keeping

the position of caliper for the purpose of getting more accurate readings.

3) Removal procedures

a. Refer to the general information of vehicle elevating and lifting to properly lift and

sustain the vehicle.

b. Mark relative positions of wheel and wheel hub.

c. Remove wheel and tire.

d. Clean the brake disc surface.

e. Re-screw wheel nuts to tighten brake disc.

f. Fix the micrometer assembly onto knuckle to ensure that the distance between

exterior margin and the contact point of indication lamp button and brake disc

surface is about 13 mm.

g. Adjust micrometer to zero.

h. Turn wheel for one circle and check the readings of micrometer, if the overall

indication variation of TIR exceeds 0.080mm, then perform surface finishing or

replace brake disc.

Under certain circumstances, excessive transverse jump of brake disc can be solved via calibrating

the brake disc position of wheel hub by means of staggering one or two bolts distance. After

calibrating the brake disc, if transverse jump still occurs, the wheel hub shall be inspected to

confirm whether the transverse jump of the hub is excessive or over loose. If transverse jump of

the hub exceeds 0.040mm, it must be replaced. If transverse jump meets the requirement,

surface finishing or brake disc replacement can be performed if necessary.

4) Tolerance of brake disc.

Under the following circumstances, it shall strictly maintain the surface tolerance of brake during

the process of brake disc manufacturing.

□ Flatness
□ Parallelism
□ Transverse jump

Maintain the form tolerance of brake surface and thus prevent brake from abrasion or pulsation.

Surface accuracy must be maintained below the specified 60° of radius roughness. New brake disc

shall conform to above specifications. And the brake disc that is subject to proper surface finishing

shall also conform to the above specifications. Refer to the specification of brake surface

finishing to control its surface precision and thus to eliminate the following malfunctions.

□ Pedal excessive rigidity
□ Severe degeneration of braking performance