300Tdi Defender
70
BRAKES
16
REPAIR
TRANSMISSION BRAKE SHOES
Service repair no - 70.45.18
Remove
1. Park vehicle on level ground, chock road wheels
and release handbrake. Alternatively, raise
vehicle on a ramp.
2. Disconnect rear propeller shaft from
transmission output flange at brake drum.
3. Slacken off transmission brake drum adjustment
bolt.
4. Remove single screw securing brake drum to
output flange.
5. Withdraw drum to expose brake assembly.
6. Release top and bottom springs from brake
shoes, see J6337.
7. Grip dished washer with a pair of pliers, depress
washer and turn through 90
°
.
8. Remove dished washer, complete with hold
down spring and pin from both shoes.
9. Move brake shoes out from adjuster slides,
release from abutment plate and remove from
backplate.
10. Check that springs are satisfactory for continued
use. If new brake shoes are to be fitted, the
srings should also be renewed.
Refit
11. Locate RH brake shoe in slide and secure brake
shoe and lever assembly to backplate with hold
down pin, spring and dished washer.
12. Locate LH brake shoe in slide and fit abutment
plate between both brake shoes. Secure LH
shoe with hold down pin, spring and dished
washer.
13. Fit pull-off springs to brake shoes.
14. Fit brake drum. Tighten screw to
25 Nm (18
lbf/ft).
15. Check that hand brake lever is released.
16. Screw in and tighten adjuster bolt until brake
drum will not rotate by hand.
17. Tighten adjuster bolt to
25 Nm (18 lbf/ft) to
ensure brake drum is locked.
18. Slacken off adjuster bolt by 1.5 turns to give
shoes a running clearance. Check that the drum
is free to rotate.
19. Fit propeller shaft to output flange. Tighten
fixings to
46 Nm (34 lbf/ft).
20. Remove wheel chocks and check operation of
handbrake.
