Depressed Park Gear Box - Pontiac Grand Prix Service Manual

WINDSHIELD WIPERS 12A-7
3. Remove steel thrust disc and rubber disc from end
cap bearing as required.
To reassemble motor, reverse the procedures as
required.
DEPRESSED PARK GEAR BOX
RELAY SWITCH-LATCH ASSEMBLY AND TERMINAL
BOARD -DISASSEMBLY
1. Remove washer pump.
2. If wiper gear drive pawl is in full park position,
remove gear. If wiper gear mechanism is not in park
position (drive pawl away from latch arm Fig. 12A-6),
proceed to step 3.
Fig. 12A-5 Retainer Holding Brush In Place
3. If only relay-switch requires replacement, proceed as
follows:
7. Install U shaped brush retainer clip J 7890 over
brush holder that has brush lead attached to circuit
a. Remove relay-snitch attaching screw (Fig. 12A-6)
breaker (Fig. 12A-5).
and carefully lift relay-switch out of g e a box.
8. Holding opposite brush from that retained in step
7,
b. Cut red lead about 3 inches from relay.
carefully lift brush holder off mounting legs far
•
enough to clear armature commutator.
c. Unsolder two leads from relay switch terminals.
9. Allow brush, held in step 8, to move out of its 4. If only terminal board requires replacement,
holder. Remove brush spring and lift brush holder off
proceed as follows:
armature shaft.
10. Lift the brush plate circuit breaker assembly from
the field coil retainers and off armature shaft.
ARMATURE
-
DISASSEMBLY AND ASSEMBLY
1. Follow steps 1 through
8 under BRUSH PLATE
REMOVAL.
2. Lift armature out of case and field assembly.
3. Remove thrust ball from end of armature shaft as
required and save for reassembly.
NOTE: Thrust ball may be easily removed with a
magnet.
CASE AND FIELD ASSEMBLY
-
DISASSEMBLY AND
ASSEMBLY
1. Remove brush plate and armature.
2. The end case and field assembly is serviced as a
unit. To free field and case assembly, cut solid black
and black with pink stripe leads in a location
Fig. 12A-6 Checking Latch Arm Switch
-
Depressed
convenient fcr splicing
-
preferably near field.
Park