Pontiac tempest 1968 Service Manual page 650

CHASSIS E L E C T R I C A L SERVICE
12-29
F i g . 12-26 Shaft Retainer
NOTE: Thrust ball may be easily removed with a
magnet
CASE AND F I E L D ASSEMBLY REMOVAL
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
convenient for splicing - preferably near field.
3. Remove steel thrust disc and rubber disc from
end cap bearing as required.
To re-assemble motor, reverse the procedures
as required.
PONTIAC AND TEMPEST
OPTIONAL GEAR BOX SYSTEM
RELAY SWITCH-LATCH ASSEMBLY-
TERMINAL BOARD REMOVAL
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 palw away from latch arm (Fig.
12-34, proceed to step 3).
3. If only relay-switch requires replacement, pro­
ceed as follows:
a. Remove relay-switch attaching screw (Fig.
12-34 and carefully lift relay-switch out of gear
box.
b. Cut red lead about 3 inches from relay.
c. U n s o l d e r two l e a d s from relay switch
terminals.
4. If only terminal board requires replacement,
proceed as follows:
a. Slide terminal board out of gear box housing.
b. Unsolder three leads at terminal board.
5. If both relay-switch and terminal board require
replacement, proceed as follows:
a. Remove relay-switch attaching screw (Fig.
12-34) and carefully lift relay-switch out of gear
box.
b. Unsolder two motor leads at relay.
c. Slide terminal board out of gear box housing.
d. Unsolder two leads (black and black with
yellow stripe) at terminal board.
REASSEMBLE PONTIAC RELAY-SWITCH LATCH
AND TERMINAL BOARD
1. If only relay-switch was replaced, solder red
lead (shortened by approximately 3 inches) of new
relay assembly to red lead from terminal board,
and tape this splice.
2. If only terminal board was replaced, resolder
three leads to new terminal board - solder red lead
to terminal No. 1, solder tan with yellow-stripe lead
to terminal No. 2, and solder black lead to terminal
No. 3. Terminal identification shown in Fig. 12-72.
3. If both terminal board and relay assemblies
were replaced, resolder two motor leads to new
relay and resolder three leads to new terminal
board.
4. Slide terminal board into wiper housing, being
careful to position terminal board resistor lead as
shown in (Fig. 12-35).
NOTE: With relay-switch replaced in housing and
washer pump reinstalled, the relay-switch plastic
housing applies pressure against resistor lead to
form a positive ground connection to wiper hous­
ing. Without this resistor ground, the wiper prob­
ably would have excessive speed in high while
having a normal low speed.
5. Position relay-switch in housing.
CAUTION: Be very careful to route leads in such
a manner as to avoid having them pinched between
relay and wiper housing.