300Tdi Defender
BRAKES
5
REPAIR
SERVO ASSEMBLY
Service repair no - 70.50.01
Remove
Before starting repair refer to general brake service
practice
See General Brake Service Practice .
NOTE: The non-return valve and grommet,
are the only serviceable components. In
event of failure or damage, fit a new unit.
1. Remove master cylinder
See Master cylinder .
2. Disconnect vacuum supply hose from servo unit.
3. At footwell, release 2 brake pedal return springs.
4. Disconnect leads from brake light switch at rear
of pedal box.
5. Remove blanking grommets from each side of
pedal box.
6. Remove split pin and clevis pin securing servo
push rod to brake pedal.
7. Remove 4 nuts and plain washers securing
servo to pedal box.
8. Remove servo assembly and rubber washer
from bulkhead.
Refit
9. Locate servo assembly and rubber washer to
engine bulkhead and secure to pedal box.
Tighten fixings to
14 Nm (10 lbf/ft).
10. Fit brake pedal to servo push rod with clevis pin
and new split pin.
11. Fit blanking grommets to each side of pedal box.
12. At footwell, attach pedal return springs.
13. Connect vacuum hose to servo non-return valve.
14. Fit brake master cylinder to servo unit
See
Master cylinder .