Rectangular Wiper Motor Section; Wiper Motor Lubrication; Rectangular Motor; Gear Box - Pontiac Grand Prix Service Manual

WINDSHIELD WIPERS
12A-11
CRANK
OUTPUT GEAR
INTERMEDIATE
A N D SHAFT
GEAR SHAFT
8
t
NUT
GEAR BOX
INTERMEDIATE
COVER
GEAR
COVER
GEAR BOX
Fig. 12A-14 Gear Box
-
Exploded View Rectangular
Motor
6. Reassembly of crank arm
-
operate wiper to park
RECTANGULAR WIPER MOTOR SECTION
wsition and install crank arm on output shaft so that
identification marks line up with thoie in cover (Fig.
-12A-15). Clamp crank in vise before securing retaining
DISASSEMBLY AND ASSEMBLY
nut.
GEAR CASE GROOVES
Fig. 12A-15 Crank Arm in Park Position
1. Follow steps 1 through 4(a) under GEAR BOX
DISASSEMBLY (Fig. 12A- 16).
2. Remove tie bolts, then work gear box off armature
shaft.
3. Release brush spring pressure against brushes as
shown in Fig. 12A-16.
4. Move brushes away from armature and slide
armature out of frame and field assembly. Pull end
plate assembly off armature.
CAUTION: Use care to insure that small thrust plug at
e n d of armature shaft does not get lost.
5. Remove end play adjusting washers.
To reassemble motor, reverse steps 1 through 4 as
required.
WIPER MOTOR LUBRICATION
RECTANGLllAR MOTOR
Armature shafts and bearings: Light grade machine oil.
Gear Teeth (ALL): Delco cam and ball bearing lubricant
or equivalent.