Checking Diode Trio; Checking Rectifier Bridge; Checking Stator; Voltage Regulator Tester Ctw-1170 - Pontiac TRANS AM 1977 Service Manual

ENGINE ELECTRICAL 6D-23
O H M M E T E R
SINGLE C O N N E C T O R
Fig. 60-26 Checking Diode Trio
BRUSH
HOLE
RESISTOR
(USED ON
SOME MODELS)
I
REGULATOR
1
OUTPUT
TERMINAL
\ INSULATED
. . . .
-
- - -
HEAT SINK
GROUND
'
SCREW UNDED
/
(-t-t]
HEAT SINK
CONNECT T
0
FLAT
METAL AND NOT
1
a
;
THREADED STUD
1
-
I
< \
1 .
OHMMETER
2392
Fig. 6D-27 Checking Rectifier Bridge
full with lubricant part no. 1948791 before reassembly.
CAUTION: Do not overfill, as this may cause the
bearing to overheat, and use only 1948791
lubricant.
To install a new bearing, press in with a tube or
collar that just fits over the outer race, with the
bearing and slinger assembled into the end frame
as shown in Figure 60-30. It is recommended that
a new retainer plate be installed if the felr seal in
the retainer plate is hardened or excessively worn.
Fill the cavity between the retainer plate and
bearing with 1948791 lubricant.
1
(CHECK FOR OPEMI
-
OHMMETER OHMMETER
(CHECK FOR OPENS) (CHECK FOR GROUNDS)
1444
Fig. 60-28 Checking Stator
Fig. 6F29 voltage Regulator Tester CTW-1170
The bearing in the slip ring end frame should be replaced
if its grease supply is exhausted. No attempt should be made
to re-lubricate and reuse the bearing. To remove the bearing
from the slip ring end frame, press out with a tube or collar
that just fits inside the end frame housing. Press from the
outside of the housing towards the inside.
To install a new bearing, place a flat plate over the
bearing and press in from the outside towards the inside of
the frame until the bearing is flush with the outside of the
end frame. Support the inside of the frame with a hollow
cylinder to prevent breakage of the end frame. Use extreme
care to avoid misalignment or otherwise placing undue stress
on the bearing.