Rover DEFENDER 300Tdi, Workshop Manual

Page: 286 / 450

70
BRAKES
10 REPAIR
FRONT BRAKE CALIPERS
Service repair no - 70.55.05
Service repair no - 70.55.16
Before starting repair refer to general brake service
practice
See General Brake Service Practice .
Remove
1. Remove front road wheels.
2. Expose flexible brake hose by moving coiled
protective covering.
3. Using a recognised hose clamp, clamp hose to
prevent loss of brake fluid.
4. Disconnect rigid brake pipe from flexible hose,
seal exposed ends to prevent ingress of dirt.
5. Remove split pin, retaining pins and springs,
withdraw pads. If refitting pads, identify them for
assembly to original locations.
6. Remove 2 bolts and withdraw caliper from swivel
housing.
WARNING: Do not separate caliper halves
7. Clean outer surfaces of caliper using aerosol
brake cleaner.
8. Using special tool LRT-70-500, clamp pistons in
inboard half of caliper. Gently, keeping fingers
clear, and with CAUTION, apply air pressure to
fluid inlet port to expel pistons. It is unlikely that
pistons will expel at same time, regulate rate
with a suitable piece of wood between
appropriate piston and caliper.
9. Finally remove pistons, identifying them with
their respective bores.
10. Remove wiper seal retainer by inserting a blunt
screwdriver between retainer and seal. Pry
retainer carefully from mouth of bore.
11. Taking care not to damage seal grooves, extract
wiper seal and fluid seal.
12. Clean bores, pistons and seal grooves using
clean brake fluid only. If caliper or pistons are
corroded, or their condition is not perfect, new
parts must be fitted.