Chery Tiggo 5 (T21). Manual — part 297
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1. Remove the bleeder plug (w/ bleeder plug cap).
a. Remove the bleeder plug (w/ bleeder plug cap)
(arrow) from brake caliper assembly.
2. Remove the brake cylinder assembly.
a. Remove 2 locating bolts (arrow) between brake
caliper fixing bracket and brake cylinder assembly.
b. Detach the brake cylinder assembly and brake caliper fixing bracket.
3. Remove the rear brake caliper locating bolt guide pin (w/ dust boot).
a. Remove 2 brake caliper locating bolt guide pins (w/
dust boot) (arrow) from brake caliper fixing bracket.
4. Remove the rear brake lining.
a. Remove the inner brake lining and outer brake lining
(arrow) from brake caliper fixing bracket.
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5. Remove the brake lining support gasket.
a. Remove 2 brake lining support gaskets (arrow) from
brake caliper fixing bracket.
6. Remove the brake cylinder dust boot.
a. Using a flat tip screwdriver wrapped with protective
tape, pry out the dust boot carefully.
7. Remove the rear disc brake piston.
a. Place a wooden board (1) between rear disc brake
piston and rear disc brake cylinder.
b. Use compressed air (2) to carefully press out the
piston from rear disc brake cylinder through the
attachment hole.
c. Clean the piston bore with alcohol or proper solution. Then wipe it with a piece of lint.
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CAUTION
Be careful not to damage brake piston and brake cylinder.
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CAUTION
Be careful not to splash brake fluid.
DO NOT hold piston by hands to prevent injury.
DO NOT remove or install brake piston casually, and always perform these operations by professional.
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8. Remove the rear disc brake piston seal ring.
a. Using a screwdriver wrapped with protective tape,
carefully pry out the rear disc brake piston seal ring
(arrow) from brake cylinder rear ring groove.
Inspection
1. Check brake cylinder and the piston.
a. Check piston and bore for scratches or corrosion. If there are scratches or corrosion, remove them with
fine sand cloth.
b. Remove dirt on piston with a soft brass wire brush and coarse cloth. Do not clean the piston with
polishing cloth or sand cloth, as this may damage its surface. If surface of piston is damaged, replace it.
If piston is stuck or bore is worn or corroded, replace entire brake caliper assembly. Using polishing
cloth to remove small corrosion points inside the bore.
2. Check brake caliper fixing bracket and brake caliper guide pin set.
a. Clean the contact surface of brake caliper fixing bracket and brake lining support gasket with brake
cleaner. Check for deformation, cracks, rust and foreign matter which is difficult to remove.
b. Check brake caliper guide pin rubber dust boot for deformation, cracks, worn and foreign matter which
is difficult to remove.
c. Install brake caliper guide pin and brake caliper guide pin rubber dust boot to brake caliper fixing
bracket. The brake caliper guide pin set should move smoothly without being stuck when pushing it with
hand; otherwise replace it.
d. After installing the brake lining, check if it is easy to fall out (due to insufficient elasticity of support
gasket). Replace as necessary.
3. Check brake lining.
a. Visually check brake lining for flatness, and also check for excessive wear. If condition of lining cannot
be confirmed accurately only by visual inspection, a physical check will be used as necessary.
b. Measure the minimum brake lining thickness. When
the minimum thickness of brake lining is 2 mm or less,
replace the brake lining.
c. When replacing excessively worn brake linings (inner and outer), it is also necessary to replace linings
on the opposite side of vehicle as well as unchecked linings to maintain proper braking performance. If
it is unnecessary to replace brake linings, be sure to reinstall brake linings to the original positions.
4. Check brake disc.
a. Minor scratch or wear on brake disc surface is acceptable. If severe scratch or deformation exists, the
brake disc must be replaced.
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b. Excessive wear of brake disc may cause poor contact between brake lining and surface of brake disc. If
protrusion on the disc is not removed before installing new brake lining, abnormal wear of brake disc
will be caused.
c. It is normal that the surface of brake disc is worn when replacing brake lining. If cracks or burned spots
exist, the brake disc must be replaced.
5. Check brake disc thickness.
a. Using a vernier caliper, measure the brake disc
thickness at the center of brake lining contact surface
as shown in the illustration.
Standard thickness: 10 mm
Minimum thickness: 8 mm
b. If it is less than the minimum thickness due to wear of brake disc, replace brake disc.
Assembly
HINT:
Use the same procedures for the right side and left side.
Procedures listed below are for the left side.
1. Install the rear disc brake piston seal ring.
a. Apply a light coat of grease to entire inner and outer
circumferences of new rear disc brake piston seal
ring.
b. Install the rear disc brake piston seal ring onto the
brake cylinder.
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CAUTION
DO NOT machine brake disc, because it may make the brake disc thickness less than the minimum
thickness.
CAUTION
When assembling brake caliper assembly, always keep your hands clean.
When assembling brake caliper assembly, always use clean new brake fluid.
Never use old seal ring for front disc brake piston.
Grease
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