Pontiac tempest 1968 Service Manual page 358

E N G I N E E L E C T R I C A L 6E-9
volt test lamp or ohmmeter between stator leads.
If lamp fails to light and if ohmmeter reading is
high, there is an open in stator windings (see Fig.
6E-14).
REGULATOR LEADS
i
• 2
3
4
5
1
1
. 1 / 6
\ • /
1
\
6
2 B B V ^ J B E B I
HEAT
' I
!
1
-"SINK
I
/
DIODE
LEAD ATTACHING NUTS
REGULATOR LEAD CLIPS 3, 4 , AND 5
F i g . 6 E - 1 2 Slip Ring End Frame and Regulator Leads •
C . S . I . Generator
(CHECK FOR OPENS)
OHMMETER
CT3
Jplf
IBB
•£ HI
OHMMETER
(CHECK FOR OPENS)
4
111
I B r
CC>
OHMMETER
(CHECK FOR GROUNDS)
O f
F i g . 6 E - 1 4 Checking Stator
c. A short circuit in stator windings is difficult
to locate without laboratory test equipment, due to
low resistance of windings. However, if all other
electrical checks are normal and alternator fails
to supply rated output, shorted stator windings
are indicated.
BRUSH HOLDER
ASSEMBLY
LEAD ATTACHING NUTS
d. Stator which fails above test should be
replaced.
4. If necessary, stator may be cleaned by brush­
ing with oleum spirits.
CAUTION: Do not clean in solvent.
5. The stator can be installed by reversing steps
1 and 2.
BRUSHES
1. Remove two brush holder screws and stator
lead to strap attaching nut and washer (Fig. 6E-12
or 6E-13).
2. Remove brush holder and brushes. Carefully
note stack-up of parts (Fig. 6E-15) for reassembly.
3. Inspect brush spring for evidence of damage or
corrosion.
F i g . 6 E - 1 3 Slip Ring End Frame - Standard Generator 4. Inspect brushes for wear or contamination.