Wiper Motor; Wiper Switch; Brush Plate And Circuit Breaker - Pontiac Grand Prix Service Manual

12A-6 1969
PONTIAC SERVICE MANUAL
WIPER MOTOR
ALL-REMOVE AND REPLACE
1. Remove hoses and wire terminals connected to
wiper unit.
2. Pontiac models
-
Remove retainer securing wiper
crank to wiper transmission linkage. Fig. 12A-4.
NOTE: This can be done by removing plastic plug fiom
left side of upper shroud, directly above wiper motor.
3. Tempest and Grand Prix Systems
-
Remove screen
and loosen clamp securing wiper crank to wiper
transmission linkage.
4. Remove screws securing wiper assembly to dash.
5. Firebird models
-
Carefully pull wiper assembly
away from firewall until retainer securing wiper crank
to wiper transmission arm can be removed.
6. Remove wiper motor.
7. To replace, reverse removal procedure making
certain that motor to dash seal is in place.
WIPER SWITCH
The wiper switch used with depressed park system has
an added "pulse" feature. Depressing the washer
switch (center button) to the first detent completes the
motor circuit. If quickly released, the system will make
one cycle and park. With the exception of this feature,
the switches operate the same:
1. Washer button
-
complete wash cycle and lo speed
wiper.
2. Wiper button first position
-
lo speed wiper.
3. Wiper button second position
-
hi speed wiper.
See SecZion 12 WIPER SWITCH REMOVE AND
REPLACE.
DEPRESSED PARK WIPER MOTOR
OVERHAUL
BRUSH PLATE AND CIRCUIT BREAKER
DISASSEMBLY AND ASSEMBLY
1. Scribe reference line along side of rear housing and
end cap to ensure proper re-assembly.
2. Remove two bolts thru motor.
3. Strike- steel
case lightly with mallet to partially
loosen it from die cast housing and motor field.
4. Feed exposed excess length of motor leads through
casting grommet and carefully separate end case and
field assembly, plus armature, from gear housing.
5. Unsolder black ground lead from circuit breaker
terminal, (Fig. 12A-5).
6. Straighten out legs that retain b&h plate to field
extensions.
NOTE: Be extremely carefit1 not to break mounting
tabs.
IN MUST REGISTER IN HOLE
IN UPPER PANEL
ACCESS PLATE
WIPER CRANK
Fig.
12A4
Pontiac Wiper Motor and Linkage
Installation