Chevrolet CHEVY VAN G10 SERIES Service Manual page 314

E L E C T R IC A L -B O D Y A N D CHASSIS 12-14
Crank Arm Reassembly
1. Operate wiper gear to park position (Figure 21).
2. Position crank arm on gear shaft flats according to
position shown in Figure 21.
3. Install crank arm retaining nut finger tight, then clamp
crank arm in vise and tighten retaining nut securely.
MOTOR DISASSEMBLY
N O T E : M o to r section may be disassembled in­
dependently o f the gear box.
Brush Plate and Circuit Breaker
Removal
1. Scribe a reference line along the side o f the casting and
end cap to insure proper reassembly.
2. Remove the two m otor thru bolts.
3. Feed exposed excess length o f motor leads thru the
casting grommet and carefully back the case and field
assembly plus the armature away from the casting (Figure
25).
G R O U N D
BLACK (PLASTIC C O A TE D )
L o Speed - A s shown
" H i " Speed - D is c o n n e c t Jum per from T e rm in a l
No. 3.
P o rk - R e co n n e ct Jum per to No. 3 te rm in a l ond
d is c o n n e c t Jum per from w ip e r h o using.
N O T E : T o re c h e c k p a rk p o s itio n o f gear, re con­
n e c t jum per w ire to H sg. (G rd .) m o m entari­
ly . W iper gear sh o u ld c o n tin u e to ro ta te
u n til i t s to p s in the p o s itio n shown.
N O T E :
ature end play adjusting screw and insert a rod thru
the opening in order to apply pressure against the
end of the armature.
4. Unsolder the black cotton-covered lead from circuit
breaker (Figure 26).
5. Straighten out the 4 tabs that secure the brush plate to
the field coil retainers (Figure 26).
C A U T IO N :
retainer tabs.
6. Install "U " shaped brush retainer clip over brush holder
that has brush lead attached to circuit breaker (Figure
26).
7. Holding the opposite brush from that retained in Step 6,
carefully lift the brush holder o ff the mounting tabs far
enough to clear the armature commutator (Figure 27).
8. Allow the brush, held in Step 7, to move out o f its
holder. Remove the brush spring and lift the brush holder
o ff the armature shaft.
Fig. 1 8 —Wiper M otor Diagnosis Diagram
It may be necessary to remove the arm ­
Be careful not to break any o f the
PO W ER SOURCE
C O N N E C T IO N S TO
WIPER
G E A R IN PARK P O S IT IO N -W IP E R OFF
PARK S W ITC H C O N TA C TS
O P E N E D BY G E A R C A M
C H E V Y V A N SH O P M A N U A L