Defender 90 NAS. Manual — part 94
WIPERS AND WASHERS
1
REPAIR
WINDSCREEN WIPER MOTOR AND DRIVE RACK
Service repair no - 84.15.09
Service repair no - 84.15.12 - Wiper Motor
Remove
1. Disconnect battery.
2. Remove wiper arms.
See Windscreen wiper
arms
3. Remove fascia duct bezel.
See AIR
CONDITIONING, Repair, Fascia duct bezel
4. Remove screw securing door check strap cover.
5. Remove door check strap cover.
6. Remove 3 screws and withdraw wiper motor
cover. Disconnect instrument illumination switch
multi-plug.
7. Disconnect multi-plug from wiper motor.
8. Disconnect wiper motor earth lead. (Not
applicable on 97 MY vehicles).
9. Lift rubber sleeve and slacken wiper motor to
drive tube nut.
10. Remove 2 screws and release wiper motor
retaining strap.
11. Fully unscrew tube nut.
12. Pull wiper motor and drive rack clear of tube and
retrieve mounting pad and earth tag.
Do not carry out further dismantling if component
is removed for access only.
13. Remove 4 screws and lift off gearbox cover.
14. Remove circlip and small plain washer securing
connecting rod.
15. Remove connecting rod and disconnect drive
rack.
Refit
NOTE: Use Ragosine Listate Grease to
lubricate gear wheel teeth, connecting rod
pin and cable rack.
16. Ensure large flat washer is in place over
crankpin.
17. Connect drive rack to pin and fit connecting rod
over crankpin and secure with small plain
washer and circlip.
18. Fit gearbox cover and secure with screws.
19. Feed wiper motor drive rack into tube until fully
seated.
20. Loosely fit drive tube securing nut.
21. Fit wiper motor securing strap and mounting
pad. Align motor and tighten fixing screws.
22. Fully tighten tube nut and fit rubber sleeve.
23. Reconnect earth lead and multi-plug.
24. Fit wiper blades.
See Windscreen wiper arms
25. Reconnect battery and test operation of wiper
motor and drive assembly. If necessary, adjust
position of wiper blades.
26. Fit instrument illumination switch multi-plug.
27. Fit cover and door check strap cover.
28. Refit fascia duct bezel.
See AIR
CONDITIONING, Repair, Fascia duct bezel
84
WIPERS AND WASHERS
2
REPAIR
WINDSCREEN WIPER ARMS
Service repair no - 84.15.01
Remove
1. Pull wiper arm away from windscreen.
2. Using a small screwdriver, hold back spring clip
which retains arm to spindle adaptor.
3. Pull wiper arm from splined adaptor.
Refit
4. Switch wiper motor to ’park’ position, with grub
screw retaining adaptor, uppermost.
5. Push arm on to adaptor ensuring that wiper
blade is just clear of windscreen surround
rubber.
6. Operate wipers and, if necessary, adjust position
of arms.
WINDSCREEN WIPER/WASHER SWITCH
Service repair no - 84.15.34
For remove and refit procedure
See ELECTRICAL,
Repair, Windscreen wiper/washer switch
REAR SCREEN WIPER AND WASHER SWITCHES
Service repair no - 84.30.27 - Rear Screen Washer
Switch
Service repair no - 84.35.33 - Rear Screen Wiper
Switch
For remove and refit procedure
See ELECTRICAL,
Repair, Heated rear screen, rear wiper and washer
switches
WIPERS AND WASHERS
3
REPAIR
WINDSCREEN WIPER WHEEL BOXES
Service repair no - 84.15.25
Remove
1. Disconnect battery.
2. Remove wiper arms.
See Windscreen wiper
arms
3. Remove wiper motor and drive rack.
See
Wiper motor and drive rack
4. Remove instrument housing, fascia crash pad,
and ventilator grille panel.
5. Slacken steering column support rod lower
fixing.
6. Remove steering column upper support fixing.
7. Slacken nuts to release back plates from LH and
RH wheel boxes.
8. Remove drive rack tubes.
9. Slacken grub screws and remove wiper arm
adaptors.
10. Remove LH and RH wheelbox spindle nuts.
11. Remove wheel box assemblies from vehicle.
84
WIPERS AND WASHERS
4
REPAIR
Refit
NOTE: During reassembly, all fixings
related to wiper motor and wheelboxes are
finger tightened only, until all components
are correctly aligned.
12. Fit wheelboxes to bulkhead and secure with
retaining nuts and washers.
13. Fit drive rack tubes to wheelboxes.
14. Apply grease to drive rack and wheelboxes.
15. Align wiper motor and mounting pad, secure with
retaining strap and tighten drive tube nut.
16. Fully tighten wheelbox back plate nuts.
17. Fully tighten both wheelbox spindle nuts.
18. Fit wiper arm adaptors and secure with grub
screw.
19. Before refitting panels fit wiper blades, connect
multi-plug and ground lead, reconnect battery
and check wiper operation.
20. If satisfactory, secure steering column upper and
lower fixings and tighten to correct torque.
21. Fit ventilator grille panel, fascia crash pad,
instrument housing and all other components
removed to gain access to wiper motor and
wheelboxes.
REAR WIPER MOTOR
Service repair no - 84.35.12
Remove
1. With assistance, unscrew 3 retaining nuts and
remove spare wheel from rear door mounting
studs.
2. Lift wiper arm end cap to gain access to securing
nut.
3. Remove nut and withdraw wiper arm from drive
spindle.
4. Remove retaining nut, plain washer and rubber
washer securing wiper motor drive spindle to
door.
5. Remove 2 screws and remove cover from wiper
motor mounting bracket.
6. Disconnect wiper motor harness multi-plug.
7. Remove bolt, with rubber washer, and remove
wiper motor from rear door.
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