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 TM 9-1375-213-34&P
(g) Remove and service armature
Remove the three screws
1.
as follows:
holding stator to cover, tak-
ing care not to damage sta-
tor leads nearby.
NOTE
Slowly
and
carefully
2.
Armature gear is serviced at the same
remove stator from cover.
time that other gears are serviced ((j)
below).
NOTE
Pull armature out of stator.
1.
As an aid in reassembly, carefully note
arrangement and relationship of inter-
2. Wipe off commutator with
mediate gear set and switch actuator.
a clean cloth and inspect it
for
ground-in
brush
deposit, dirt, pits, and
3. Pull shaft of intermediate
heavy wear.
gear set from its bearing
hole.
3. If any of above conditions
are found, use flint abra-
(j)
Clean and service gears as fol-
sive paper to huff commuta-
lows:
tor surface evenly all the
way around. to correct con-
1. Inspect teeth of' all gears
dition.
(including armature gear)
for burs and gouges.
buffing
surface,
4. After
Using screwdriver or knife
slightly undercut
mica insu-
blade, smooth gear teeth
lation between
segments,
as necessary.
using edge of
a folded
piece o f f l i n t
abrasive
NOTE
paper.
5. With crocus cloth or an
A small file may be used to smooth gear
abrasive paste (rubbing
teeth, but care must be exercised in
compound), remove any sig-
using it because the gears are made of
nificant rust from lami-
soft metal and can be easily damaged.
nated iron periphery of
armature. Take care not
to scratch commutator or
2. Remove any rust or corro-
leave paste on any portion
sion
as
from
gears
of armature. Wipe arma-
described in (g) 5. above.
ture with clean, soft cloth
to remove any remaining
3. Wipe old grease from parts
grit.
and spread fresh grease on
gear teeth, a n d i n a n d
around bearing surfaces.
(h)
Clean and service stator as fol-
lows:
Work mechanisms to make
sure grease is distributed
1. Clean any rust from stator
properly.
wipe
and
clean
as
described in (g) 5. above.
NOTE
2. Carefully inspect all vis-
ible stator lead wires for
Older (Fidelity-type) machines may be
cuts, breaks, shorts; etc.
repaired by replacement of the gear sec-
Repair as necessary, using
tor and stud (see procedure in (k)
rosin core solder to splice
below), since this repair part is in the
wires and using electrical
supply system.
However, this part
tape to insulate.
(because it is of softer metal than the
gears in the newer Dixson machines)
(i) Free stator and intermediate
may not be used to repair a newer
gear set as follows:
machine, since it would not last long
when used with the harder gears.
4-28
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