Chevrolet 10 Series 1970, Руководство по обслуживанию

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ELECTRICAL—BODY AND CHASSIS 12-23
WIPER M O TO R DISASSEMBLY
G ear Box
R e fe r to F igu re 20.
1. R em ove the two washer pump mounting screw s and
lift pump o ff washer.
2. R em ove w asher pump d riv e cam as requ ired (fig.
24, 25). The cam is p ressed on the shaft but can be
wedged o ff by using two sc re w d r iv e r s between cam
and plate.
3. Clamp crank arm in a v is e and rem ove crank arm
retaining nut.
C A UTIO N: F a ilu re to clam p crank a r m may
resu lt in stripping o f w iper g e a rs !
4. R em ove crank arm , seal cap, T r u - A r c retaining ring,
and end-play w ashers.
NOTE: Seal cap should be cleaned and r e ­
packed with a w a te r-p ro o f type grea se b efo re
reassem b ly.
5. D r ill out g e a r box c o v e r retaining riv e ts , rem ove
c o v e r fro m g e a r train.
NOTE: Screw s, nuts and lock w ashers fo r r e ­
assem bling c o v e r to w ip er a re contained in a
s e r v ic e re p a ir package.
6. R em ove output gea r and shaft assem bly, then slid e
interm ediate g e a r and pinion assem bly o ff shaft.
7. If n ecessa ry, rem ove term in al board and park switch
assem bly as follow s:
a. U nsolder m otor leads fro m term in als. Code m o­
to r leads.
b. D r ill out r iv e ts secu rin g term in al board and park
switch ground strap to mounting plate.
NOTE: Screw s, nuts and w ashers fo r attaching
a replacem en t term in al board-park switch a s ­
sem bly a re included with the replacem ent a s ­
sem bly.
M otor
1. F ollow Steps 1 through 7b under gea r box d is a s ­
sem bly.
2. Rem ove m otor through bolts, tap m otor fra m e ligh tly,
and rem ove m otor fro m mounting plate.
3. R em ove brush spring tension (fig. 20), slide arm ature
and end plate fro m m otor fram e. P u ll end plate
fro m arm ature.
NOTE: Thrust plug located between arm ature
shaft and end plate.
4. Rem ove end play adjusting w ashers fro m arm ature,
noting arrangem ent fo r p ro p er reinstallation.
WIPER M O TO R INSPECTION
Check and inspect a ll parts fo r s e rv ic e a b ility , rep lace
as n ecessary. A ll parts can be replaced individually e x ­
cept m otor fra m e and fie ld , which is s e rv ic e d as an a s ­
sem bly. S e rv ic e kits also p rovid e screw s, nuts and
w ashers to rep lace gea r c o v e r and term in al board r iv e ts .
WIPER M O TO R ASSEMBLY
R e fe r to F igu re 20 fo r exploded view o f m otor and gea r
train.
M oto r
R eassem bly m otor using re v e rs e o f disassem b ly p r o ­
cedure.
F ig . 20—W ip e r M o to r & G e a r Box Assem bly
1. N u t
2. C ra n k Arm
3 . Seal Cap
4 . R e ta in in g Ring
5 . W asher
6. G e a r Box C o v e r
7. O u tp u t G e a r and
S haft A ssem bly
8 . In te rm e d ia te G e a r
9. W ave W asher
10. G e a r Box Housing
11. Brush P late A ssem bly and
M o u n tin g Brackets
12. Brushes
13. W ave Washers
14. F la t Washers
15. A rm a tu re 16. Thrust Plug
17. Frame and F ie ld
18. End P late
19. T ie Bolts (Tw o R equired)
CHEVROLET TRUCK SERVICE MANUAL