NOTE: Be careful not to damage or deform
the new sleeve collar. Carefully tap the new
sleeve collar into position. The rotor locking
nut should be torqued to 175 ft.-lbs.

After the rotor locking nut is properly torqued,
bend the washer down over the locking nut.

Check rotor air gap.

.017" minimum is

allowed.

10. Mount the brush holder assembly to the sta-

tor frame using two bolts, washers, and nuts.

Installing and Seating Exciter Slip Ring Brushes

a. Make sure the slip rings are clean and

free from oil and grease.

b. Spacing between the brush holder and

slip rings must be .050" to .090". Adjust
as required.

c. Before placing the exciter brushes in their

holders, twist the brush pigtail at its
entrance to the brush until the strands are
tightly packed and no part of the pigtail
protrudes beyond the brush surface in the
pigtail slot. When the brush is placed in
the holder, clear the pigtail from the side
of the holder to allow free radial move-
ment of the brush.

d. The exciter brush spring must lie flat on

the corner of the brush and not touch
either side of the retainer.

e. With the brushes in place, insert one end

of a minimum 24" long piece of 180 grit
sandpaper between the slip rings and
brushes (abrasive against brushes). With
slight additional finger pressure on top of
brushes, pull the paper around the cir-
cumference of the rings in the direction of
rotation only. Repeat this procedure until
the entire face of the brush is contoured
to the radius of the slip ring.

f. Check the brushes to be certain that there

is spring tension holding them firmly
against the slip rings.

11. Install the alternator cover and wrap-around.

12. Connect the negative battery cable.

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