Discovery (1995+): Body Repair Manual — part 11
75
SUPPLEMENTARY RESTRAINT SYSTEM
4
REPAIR
Refit
9. Reverse removal procedure.
CAUTION: Ensure road wheels are straight
ahead before fitting steering wheel.
10. Fit steering wheel ensuring the rotary coupler
lugs are correctly engaged.
11. Fit steering wheel nut. Tighten to
50 Nm (37 lbf
ft).
12. Refit driver’s airbag module.
See this section.
ROTARY COUPLER
Service repair no - 76.74.07
CAUTION: Ensure wheels are straight
ahead before removal and refitting. Store
in plastic bag. DO NOT rotate mechanism
whilst removing.
Remove
1. Remove driver’s airbag module.
See this
section.
2. Remove steering wheel.
See this section.
3. Release lever and lower steering column.
4. Release 2 turnbuckles and remove lower dash
panel.
SUPPLEMENTARY RESTRAINT SYSTEM
5
REPAIR
5. Remove 3 screws securing lower half of nacelle
to steering column.
6. Separate the 2 halves of the nacelle and remove
from steering column.
7. Release airbag harness connector from bracket
and disconnect.
8. Disconnect rotary coupler connector from
steering column harness.
9. Release 2 clips securing rotary coupler to
column switch assembly.
10. Remove rotary coupler from column switch
assembly.
75
SUPPLEMENTARY RESTRAINT SYSTEM
6
REPAIR
11. If rotary coupler is being re-used, place a piece
of adhesive tape around moulding in position A
to prevent rotation.
Refit
12. Reverse removal procedure.
CAUTION: Ensure indicator cancellation
pegs correctly engage into back of
steering wheel.
13. Align direction indicator cancellation bush. If
original rotary coupler is being fitted remove
adhesive tape and then fit rotary coupler to
column switch assembly.
NOTE: If original rotary coupler is to be
fitted and there is evidence of tampering, it
is imperative that the coupler is
centralised.
See this section.
14. If a new rotary coupler is being fitted and the
sealing tape at position B is broken it MUST
NOT be used.
15. Refit steering wheel.
See this section.
16. Turn steering wheel to both LH and RH lock 5
times. If adverse noises can be heard, check
alignment of indicator cancellation pegs.
17. Refit driver’s airbag module.
See this section.
SUPPLEMENTARY RESTRAINT SYSTEM
7
REPAIR
ROTARY COUPLER CENTRALISE
Fitting a rotary coupler which has not been centralised
could result in tape breakage. If the tape is broken, a
new rotary coupler must be fitted.
Providing the removal procedure has been correctly
followed this operation should not be necessary. If
however there is evidence of tampering, it is
imperative that the coupler is centralised.
CAUTION: Ensure wheels are positioned
straight ahead before fitting the rotary
coupler.
1. Correctly fit rotary coupler to column switch
assembly but do not fit steering wheel or make
any electrical connections.
See this section.
2. Depress rotary coupler locking peg and without
using undue force, rotate coupler anti-clockwise
as far as inner tape will allow. Releasing peg will
lock coupler in its current position.
NOTE: Do not apply excessive force when
limit is reached as this may result in tape
breakage. If no limit can be found, tape
has already broken and rotary coupler must be
replaced.
3. Having turned rotary coupler fully anti-clockwise
to limit position, proceed to turn coupler 2.5 turns
clockwise to obtain central position. (Coupler will
normally rotate a full five turns from
anti-clockwise limit to clockwise limit).
4. Make necessary electrical connections and refit
steering wheel.
See this section.
5. Refit driver’s airbag module.
See this section.
COLUMN SWITCH ASSEMBLY
Service repair no - Indicator/lighting - 86.65.55
Service repair no - Wash/wipe - 84.15.34
Remove
1. Remove steering wheel.
See this section.
2. Release 2 turnbuckles and remove lower dash
panel.
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