Chery QQ - Description and Opeartion

Chery QQ Service Manual Chassis System
8)Brake disc surface finishing
Points of attention: Don’t finish
disc to correct following process:
 Brake noise.
 Early wear of lining.
 Surface corrosion.
 Disc fade.
Only finish surface on one of following
conditions:
 Serious scratch on surface of disc
with depth of 0.4mm.
 The hop caused by following
reasons:
——The deviation of disc depth
exceeds 0.01mm.
——Corrosion or scratch depth
exceeds the surface of disc.
Attention: Whenever to remove the disc
from wheel flange, the corrosion or
dirt on disc or flange face must be
cleaned, otherwise it will cause
serious hop.
1、Clear the wheel bearing and hub.
2、Use micrometer to measure the
thinnest point on disc. If the
thickness of the point exceeds the
minimum thickness of disc, don’t
finish surface of disc. Replace disc at
once.
3、Clear completely the corrosion on
flange.
4、Finish the disc.
Points of attention: If the best
surface finishing could not be reached,
it will cause bad brake ability.
5、After machining the disc, use alumna
to get unidirectional surface.
6、Clean surface with suitable cleaning
fluid
Attention: Loose wheel bolts will
cause brake hop or damage. Screw wheel
nuts to specified torque to avoid
expensive service for brake system.
4. Description and operation
Disc braking system
Points of attention:
 Use clean fluid to lubricate all
rubber parts for better
installation.
 Don’t use compressed air with
lubricant.
 Whenever to remove hydraulic parts,
drain out all air in system.
 Replace whole lining assembly.
 Fix dry parts in specified torque.
Operate on clean working desk.
The caliper has a single cylinder.
The caliper is mounted on the
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Chery Automobile Co., Ltd