Defender 90 NAS. Manual — part 68
70
BRAKES
6
REPAIR
BRAKE PEDAL
Service repair no - 70.35.01 - Brake pedal
Service repair no - 70.35.03 - Pedal box
Remove
1. Remove brake servo assembly.
See Brake
servo assembly
2. Remove 6 bolts securing pedal box to engine
bulkhead.
3. Taking care not damage brake fluid pipes,
remove pedal box assembly and gasket.
4. Release return springs from pedal and pedal box
bosses.
5. Using a suitable punch, drift out retaining pin and
withdraw pedal pivot shaft.
6. Remove brake pedal complete with pivot
bushes.
7. Examine components for wear or damage,
renew as necessary.
8. If it is necessary to fit new pivot bushes, they
must be reamed out to 15,87 mm
±
0,02 mm,
0.625
±
0.001 in after fitment.
Refit
9. Lubricate pedal pivot shaft and bushes with
general purpose grease.
10. Fit pedal to pedal box, insert pivot shaft and
secure with new split pin.
11. Attach return springs to pedal and pedal box
bosses.
12. Fit pedal box and gasket to engine bulkhead.
Tighten fixings to
25 Nm, 18 lbf/ft.
13. Fit brake servo assembly.
See Brake servo
assembly
BRAKES
7
REPAIR
FRONT BRAKE PADS
Service repair no - 70.40.02
Remove
1. Remove front road wheels .
2. Clean exterior of calipers.
3. Remove split [cotter] pin from retaining pins.
4. Remove pad retaining pins and anti-rattle
springs.
5. Remove brake pads.
6. Clean exposed parts of pistons, using new brake
fluid. Wipe away excess with a lint free cloth.
7. Using piston clamp LRT-70-500press each
piston back into its bore. Ensure that displaced
brake fluid does not overflow from reservoir.
Refit
8. Fit brake pads.
9. Fit pad retaining pins and anti-rattle springs.
Secure with new split [cotter] pins.
10. Apply service brake pedal several times to locate
pads.
11. Check fluid reservoir. Top-up if necessary, using
correct grade of fluid.
See LUBRICANTS,
FLUIDS AND CAPACITIES, Information,
Recommended lubricants and fluids
70
BRAKES
8
REPAIR
REAR BRAKE PADS
Service repair no - 70.40.03
Remove
1. Remove rear road wheels.
2. Clean exterior of calipers.
3. Remove pad retaining pins and anti-rattle
springs.
4. Remove brake pads.
5. Clean exposed parts of pistons, using new brake
fluid. Wipe away excess with a lint free cloth.
6. Using piston clamp LRT-70-500press each
piston back into its bore. Ensure that displaced
brake fluid does not overflow from reservoir.
Refit
7. Insert brake pads.
8. Position pad retaining springs, fit new pins and
spread ends.
9. Apply brake pedal several times to locate pads.
10. Fit road wheels.
130 Nm, 95 lbf ft.
11. Check fluid reservoir, top up if necessary, using
correct grade of fluid
See LUBRICANTS,
FLUIDS AND CAPACITIES, Information,
Recommended lubricants and fluids
BRAKES
9
REPAIR
FRONT BRAKE CALIPER ASSEMBLY
Key to caliper
1. Caliper
2. Bleedscrew
3. Anti-rattle springs
4. Pad retaining pins
5. Split [cotter] pin
6. Friction pads
7. Piston
8. Wiper seal retainer
9. Wiper seal
10. Fluid seal
11. Brake disc
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