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ELECTRICAL-BODY AND CHASSIS 12-47
1
1
Fig. 66 - Washer Pump - Attach Screws
WIPER MOTOR ASSEMBLY
DISASSEMBLY
Gear Box (Fig. 65}
1. For wipers equipped with a washer pump, remove
the two washer pump mounting screws (fig. 66) and
lift pump off washer.
2. Remove washer pump drive cam as required (fig.
67). The cam is pressed on the shaft but can be
4-LOBE CAM
WASHER PUMP DRIVE
(PRESS FIT)
BRUSH HOLDER
REMOVE BRUSH SPRING FROM SLOT
AND PUCE IT IN GROOVE ASSHOWN
Fig. 68 - Releasing Brush Spring Tension
wedged off by using two screw drivers between cam
and plate.
3. Clamp crank arm in a vise and remove crank arm
retaining nut.
CAUTION:
Failure to clamp crank arm may
result in stripping of wiper gears*.
4. Remove crank arm, seal cap, Tru-Arc retaining
ring, and end-play washers.
NOTE:
Seal cap should be cleaned and re-
packed with a water-proof type grease before
reassembly.
5. Drill out gear box cover retaining rivets, remove
cover from gear train.
Fig. 67 - Washer Pump Drive Cam
Fig. 6 9 - End Play Wave Washer Installation
CHEVROLET CHASSIS SERVICE MANUAL
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