Chevrolet 1977 10 Series, Repair Manual, Page: 229 / 468

ENGINE ELECTRICAL 6D-7
10-SI SERIES
DISASSEMBLY (fig. 6D-1C)
1. Hold generator in a vise, clamping the m ounting
flange lengthwise.
2. Remove the four thru-bolts and separate the slip ring
end frame and stator assembly from the drive end and rotor
assembly by prying apart with a screwdriver at the stator slot.
NOTE:
A scribe m ark will help locate the parts in the
same position during assembly.
3. Place a piece of tape over the slip ring end frame
bearing to prevent entry of dirt and other foreign m aterial,
and also a piece of tape over the shaft at the slip ring end.
CAUTION:
Brushes may drop onto the rotor shaft
and become contaminated with bearing lubricant.
Clean brushes prior to installing with a non-toxic
cleaner such as trichlorethylene or a soft dry cloth.
4. Remove the stator lead attaching nuts and separate
stator from end frame.
NOTE:
At this point, with the two end frames separated
the stator disconnected and the rotor removed electrical
checks of the rotor, rectifier bridge, stator and diode trio
brush lead clip may be m ade without further
disassembly. Refer to the specific checks as outlined in
this section.
5. Remove screw attaching diode trio to brush holder
assembly and remove diode trio from end frame (fig. 6D-7C).
NOTE:
Diode trio may be checked for a grounded brush
lead clip at this point. Refer to diode trio checks.
6. Remove the rectifier bridge attaching screw and the
GENERATOR
"BAT" term inal screw, and disconnect the capacitor lead.
Remove rectifier bridge from the end frame.
7. Remove two attaching screws, and remove brush
holder and regulator assemblies.
N O TE: Two insulators are assembled over the top of the
brush retaining clips and the two screws have special
insulating sleeves over the screw body.
8. Remove retaining screw and capacitor from end of
frame (fig. 6D-6C).
9. Remove slip ring end frame bearing (if necessary).
Refer to bearing replacem ent covered in this section.
10. Remove pulley retaining nut and slide washer,
pulley, fan and spacer from shaft.
a. Single groove pulley--place 15/16" box wrench on the
shaft nut and insert a 5/16" alien wrench into the shaft end
hole to hold the shaft while removing the nut (fig. 2C).
b. Double groove pulley-place a 15/16" socket (with
wrench flats on the drive end or use adapter J-2 1501 and a
box wrench on the pulley retaining nut, insert a 5/16" alien
wrench through the socket and adapter into hex hole in the
shaft to hold the shaft while removing the nut.
11. Remove rotor and spacers from the drive end frame
assembly.
12. Remove drive end frame bearing retainer plate
screws, plate, gasket, bearing, and slinger from end frame (if
necessary).
Fig. 6D- 1C - 10-SI Series G en erator