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 c . Installation of Commutator End Plate
a . Install new sleeve bearing (G) in drive
Brushes and Armature. Refer to figure 34 and
housing (B). Ream sleeve bearing bore to limits
install commutator end plate, brushes, and ar-
specified in wear limits (par. 41e) and drill oil
mature.
hole.
If new brushes are to be installed, cut
b. Saturate wick (G), and felt plug (D) with
a strip of 2/0 sandpaper the width of the
oil (OE).
commutator, and install on commutator
with sand side out, see step 1.
c. Apply sealer to expansion plug seat. In-
stall wick (G), felt plug (D), and expansion plug
Install commutator end plate on arma-
(E).
ture. Lift brush springs using impro-
vised brush spring lifter (fig. 3) and
d . Fill reservoir with oil and install pipe
install brushes. Brushes must lie flat
plugs (H and F).
against sandpaper on commutator to
obtain the desired brush seat contour.
e . Install rubber plugs (A) in housing (B).
Hold armature and carefully rotate com-
mutator end plate assembly in a clock-
wise direction three to five revolutions
to properly seat all brushes.
assembly.
Lift brush springs and raise each brush
and inspect seat contour to determine
whether or not the sanding operation is
b . Installation of Lever Housing and Drive
Clutch. Refer to figure 33 and install lever hous-
satisfactory. Refer to figure 35 for ex-
ing drive clutch.
amples of satisfactory brush seats.
36
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