Chery A1 2009 Service Manual page 601

3. Remove the pin (2) from the brake booster rod.
4. Remove the nuts (1) & (3) attaching the power
brake booster to the dash panel.
(Tighten: Brake pedal/Power brake booster mount-
ing nuts to 25 N·m)
5. Slide the power brake booster forward until its
mounting studs clear the dash panel, then remove
it through the engine compartment.
6. Installation is in the reverse order of removal.
Front Brake Caliper
Description
The calipers are a single piston type. The calipers are free to slide laterally on the anchor, this allows continuous
compensation for lining wear. The calipers are directly bolted to the wheel hub with mounting bolts. The brake rotor
dust shield is mounted to the hub.
Operation
When the brakes are applied, fluid pressure is exerted against the caliper piston. The fluid pressure is exerted
equally and in all directions. This means pressure exerted against the caliper piston and within the caliper bore will
be equal. Fluid pressure applied to the pistons is transmitted directly to the inboard brake pad. This forces the pad
lining against the inner surface of the disc brake rotor. At the same time, fluid pressure within the piston bore forces
the caliper to slide inward on the slide pins. This action brings the outboard brake pad lining into contact with the
outer surface of the disc brake rotor.
Removal & Installation
1. Using a brake pedal holding tool, depress the brake pedal past its first 25 mm of travel and hold it in this posi-
tion. This will isolate the master cylinder from the brake hydraulic system and will not allow the brake fluid to
drain out of the master cylinder reservoir when the lines are opened.
2. Raise and support the vehicle.
3. Remove the wheel mounting nuts and the tire and wheel assembly.
(Tighten: Wheel mounting nuts to 110 N·m)
Chery Automobile Co., Ltd.
ON-VEHICLE SERVICE
PZSM120011
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