GMC 1989 Light Duty Truck, Repair Manual, Page: 659 / 998

GENERATOR 6D2-7
Figure 13— Stator in the Slip Ring End Frame
4.
5.
6.
7.
8.
9.
10
.
11
.
• Make sure the side with the insulator material is
placed against the end fram e (ground).
Two screws and washers through the grounded heat
sink.
“ BAT” term inal nut (1) with the flat side down to the
insulated heat sink (figure 8).
If the brush holder, regulator, or connector has been
replaced, connect it by crim ping the connector(s) to
the other component(s). Then solder the connection
using as little heat as possible to avoid heat damage
to the regulator (figure 9).
Brush holder (131), regulator (226) and connector
assembly into the end fram e (figure 7).
• The metal side of the capacitor strap should rest
against the regulator connection.
One screw into the brush holder.
• If a brush holder with locator bosses is being
replaced with a holder w ithout locators, be sure
to align the brush holder assembly and hold it
w ith your fingers w hile tightening the brush
holder attaching screw.
Two insulated screws through the regulator connec­
tor.
Brushes (130) into the brush holder (131).
• Retract the brushes in the h o ld e r.'
• Retain the retracted brushes with a toothpick or
retaining pin.
• Be sure th a t the pin or to o th p ic k e xte n d s
through the end fram e when the brush holder is
in place. After the rotor and drive end fram e are
installed, the pin or toothpick will be pulled out,
allowing the brushes to contact the slip rings.
Stator (220) into the end frame, aligning the three
stator leads to the three rectifier bridge term inals
(figure 14).
Three terminal nuts. Tighten the nuts securely.
DRIVE END FRAME
■+4- Install or Connect (Figures 4 and 15)
Figure 14— Installing the Slip Ring End Bearing
2 .
3.
4.
5.
6
.
• Press against the outer race to press the bear­
ing into place.
Retainer (128) with three screws.
Slip ring end bearing (106) onto the rotor (figure 15).
• Press against the inner race until the stop is
reached.
• This bearing must be replaced any tim e the two
halves of the generator are separated.
R otor sh a ft th ro u g h th e inside c o lla r (116) and
through the end fram e (216).
Outside collar (117), fan (230) and fan collar (306)
onto the shaft (figure 5).
Pulley (229), washer (14) and pulley nut (1) onto the
shaft.
Tighten
> A I Nut to 100 N-m (75 ft. lbs.).
MAIN ASSEMBLY
*
1
.
1. Drive end bearing (107) into the frame.
Assemble
Drive end frame (216) and rotor assembly to the slip
ring end frame, lining up the marks.
• Carefully guide the slip ring end bearing into the
slip ring end frame.
• Be sure the tolerance rings on the S.R.E. bear­
ing outer race are not dam aged.
Four through bolts (28). Tighten securely.
• Remove the brush retainer from the end frame.
• Test the generator output.
F-07090
106. Slip R ing End B earing