Chevrolet 10 series 1973, Руководство по капитальному ремонту

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6 Y -1 2 EN G INE ELECTRICAL
REPAIRS
Brush Holder and Regulator Replacement
(fig. 7C)
1. If not previously removed, remove the three stator
lead attaching nuts, the stator, diode trio brush lead
screw and diode trio from the end frame.
2. Remove the remaining two screws from the brush
holder and regulator and remove these units from
the end frame.
NOTE: The two screws retaining the brush
clips have insulating washers over the tops of
the brush clips and special insulating sleeves
over the screw body above the threads. If
they are damaged or missing a ground will
result causing uncontrolled or no output.
3. Replace defective unit and reassemble using reverse
of removal procedures.
NOTE: The screw nearest regulator terminals
does not have an insulating washer, but may
or may not have an insulating sleeve.
Slip Ring Servicing
If the slip rings are dirty, they may be cleaned and
finished with 400 grain or finer polishing cloth. Spin the
rotor, and hold the polishing cloth against the slip rings
until they are clean.
CAUTION: The rotor must be rotated in order
that the slip rings will be cleaned evenly.
Cleaning the slip rings by hand without
spinning the rotor may result in flat spots on
the slip rings, causing brush noise.
Slip rings which are rough or out of round should be
trued in a lathe to .002 inch maximum indicator reading.
Remove only enough material to make the rings smooth
and round. Finish with 400 grain or finer polishing cloth
and blow away all dust.
Drive End Fram e-Bearing R eplacem ent/
Lubrication
1. The drive end frame bearing can be removed by
detaching the retainer plate bolts and separating
retainer plate and seal assembly from end frame,
and then pressing bearing out using suitable tube or
pipe on outer race.
2. Refill bearing one-quarter full with Delco-Remy
No. 1948791 grease or equivalent. Do not overfill.
3. Press bearing into end frame using tube or pipe as
in Step 1 with bearing and slinger assembled as
shown in Figure 8C.
4. Install retainer plate. Use new retainer plate if felt
seal is hardened or excessively worn.
NOTE: Stake retainer plate bolts to plate.
Slip Ring End Fram e-Bearing Replacem ent
1. Replace the bearing if the grease supply is
Fig. 8 C -D riv e End B earing Cross Section
exhausted. Make no attempt to re-lubricate and
reuse the bearing.
2. Press out from outside of housing, using suitable
tool over outer race of bearing.
3. To install, place a flat plate over the bearing and
press in from outside of housing until bearing is
flush with the outside of the end frame. Support
inside of end frame around bearing bore with a
suitable tool to prevent distortion. Use extreme care
to avoid misalignment.
4. Install new seal whenever bearing is replaced.
Lightly coat the seal lip with oil and press seal into
the end frame with the seal lip toward the inside of
the end frame.
REASSEMBLY
1. Install rotor in drive end frame and attach spacer,
fan, pulley, washer, and nut.
2. Using adapter J-21501, insert an alien wrench into
hex shaped hole at end of shaft and torque the
shaft nut to 40-50 ft. lbs. (fig. 9C).
3. Install capacitor and retaining screw in slip ring
end frame.
4. Position brush holder and regulator assemblies in
end frame and install two retaining screws.
NOTE: The two screws retaining the brush
clips have insulating washers over the top of
the brush clips and special insulating sleeves
over the screw body above the threads. If the
third screw does not have an insulating
CHASSIS OVERHAUL MANUAL