300Tdi Discovery
BRAKES
3
REPAIR
MASTER CYLINDER ABS
Service repair no - 70.30.08
- Lucas Girling - Type 25.4mm CV/CV
NOTE: This master cylinder is identified by
a 3rd plugged outlet port protruding down
from the master cylinder body.
Before starting repair refer to general brake service
practice.
See General Brake Service Practice
Remove
1. Disconnect battery negative lead.
2. Place a suitable container under master cylinder
to catch brake fluid from cylinder when brake
pipes are disconnected.
3. Thoroughly clean immediate area around all
outlet ports. Remove each brake pipe, sealing
each pipe and outlet port with suitable plugs to
prevent ingress of foreign matter.
4. Disconnect electrical plug from low fluid switch
on reservoir cap.
5. Remove two nuts securing master cylinder to
servo unit remove also spring and plain washers.
6. Detach master cylinder from servo, remove
reservoir cap and drain brake fluid into a
container.
Refit
NOTE: Ensure O ring seal between master
cylinder and servo unit is fitted correctly.
7. Fit master cylinder to servo. Secure in position
with two nuts, plain and spring washers. Tighten
to
26 Nm.
8. Fit brake pipes to master cylinder. Tighten to
15Nm.
9. Top-up master cylinder with correct grade of
brake fluid.
See LUBRICANTS, FLUIDS AND
CAPACITIES, Information, Recommended
Lubricants and Fluids
10. Bleed system.
See Brake System Bleed
11. Fit cap, reconnect electrical lead to fluid level
switch. Reconnect battery negative lead.
