Caliper; Adjustment Of Clearance - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

GENERAL INFORMATION
DESCRIPTION AND OPERATION

Caliper

The disc brake is normally used for front wheels, however,
currently it is also used for rear wheels. The floating cali-
per type disc brake installed in this vehicle has only one
brake cylinder at one side of caliper. The hydraulic pres-
sure generated by master cylinder pushes the piston to
contact the pad against the disc. The caliper is moved to
contact to the opposite pad.
The brake disc features:
* Excellent radiation due to it is exposed to ambient air
* Less braking force changes
* No uneven braking
* Simple structure and operation
Pad
* General description
SPECIFICATIONS
Description
Type
Inner diameter of caliper cylinder
Pad thickness
Disc thickness
FRONT BRAKE
REXTON SM - 2004.4
Piston
Disc
Y220_08B001

Adjustment of Clearance

When the hydraulic pressure is applied to the piston, the
piston moves to push the pad. The piston seal, which ex-
tent considerable pressure against the piston, moves with
cylinder.
However, the piston seal shape is deformed since the pis-
ton seal is fixed at the cylinder groove as shown in below
figure.
When the pressure is released from the piston, the piston
comes back to its original position by a restoring and elastic
force of the seal.
When the pad wear is excessive, the piston seal cannot
reach to the desired point because the seal's deformation
is limited.
Accordingly, the piston always comes back by the de-
formed distance of piston seal, it keeps the initial clearance.
1. Piston
2. Piston seal
MANDO
Ventilated disc type
φ
42.9 x 2 mm
10.5 mm
26 mm
8B-3
Y220_08B002
3. Pad
a. Clearance
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN