Rolls-Royce Silver Shadow II - Page 81

Service
Bulletin
Bulletm number
Category
C
16W WIPER MOTOR
PARKING SWITCH ADJUSTMENT
APPLICABLE TO:
.~All Silver Shadow, T series and Corniche motor cars fitted with
~ an intermi tten wipe device.
§
]
...J
.,
~ DESCRIPTION:
~
4'
JFor same time the wiper motbr type 16W has been reduced for
·Jspares purposes to three sub-assemblies, as described in
£Service Bulletin SY/M49. The 16W motor can be recognised
9by the round motor casing as opposed to the flat sided casing
of the previous motor.
For general fault diagnosis of this wiper motor, consult
Service Bulletin SY/MBB.
The parking switch of this motor is provided with an adjust-
ment to allow for slight dimensional differences in motor and
drive gear assemblies. When replacing a drive gear assembly
it may be necessary to re-adjust the parking switch to suit
the new assembly. Failure to do this may result in one of the
following faults:
1 With the wiper switch in the INTERMITTENT position and the
blades parked on the screen, moving the switch to the OFF
position does not cause the blades to move to the off
screen position.
2 When moving the wiper switch from OFF to INTERMI'rl'ENT,
there is an 8 to 10 second delay before the wiper motor
operates.
If a new gear assembly has been fitted and the wiper motor
exhibits one of the above faults the relevant following
procedure should be adopted.
TSD4171