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 TM 9-1375-213-34&P
5. If any of above conditions
1. Inspect
gear teeth (on
are found, use flint abra-
R
rack
and
pinion
sive paper to buff commuta-
gears) for burs, gashes;
tor surface evenly all the
etc. Using a screwdriver
way around to correct con-
or knife blade, smooth
dition.
gear teeth, as necessary.
6. After
buffing
surface,
2. Wipe grease from gears,
slightly undercut
mica insu-
rack, and impact surface
lation between
segments,
of wooden cam on switch
using edge of
a folded
assembly Apply fresh
piece o f f l i n t
abrasive
grease sparingly to rack,
paper.
gears, and impact surface
of wooden cam.
7. With crocus cloth or an
abrasive paste (rubbing
(1) Reasssemble machine as fol-
lows:
compound), remove any sig-
nificant rust from lami-
1 . Insert plunger
nated iron periphery of
into
its
guide.
armature. Take care not
to scratch commutator or
2 . Grease
leave paste on any portion
sparingly both
of armature. Wipe arma-
sides of a fiber washer and
ture with clean, soft cloth
push washer all the way
to remove any remaining
back on gear shaft.
grit,
3 . Ensure that thin metal
(h) Clean and service stator as
washer is not stuck to
follows:
small gear and place small
gear on gear shaft.
1. Clean any rust from stator
and wipe clean as
4 . Grease the thin metal
described in (g) 4. and 5.
washer
sparingly
and
above.
place it on gear shaft.
2.
5 . Hold large gear ratchet
Carefully inspect all vis-
ible wiring for cuts, worn
spring back and swing
insulation and loose connec-
ratchet back (away from
tions.
Repair, as neces-
center hole of gear) so that
sary, using rosin core
it holds the spring in this
solder to splice wires and
position.
using electrical tape to insu-
late.
6 . While
holding ratchet
back, place large gear on
Place a drop or two of oil on
(i)
gear shaft (ratchet toward
end shafts of armature, and
generator) so that it butts
insert it back into the stator.
against thin metal washer
Secure armature with end cap
and
small
gear
and
and screws, making sure end
engages armature gear.
shafts are properly seated, and
armature is free to rotate in its
7.
Grease sparingly remain-
ing fiber washer and place
it on gear shaft.
(j) Clean switch contact areas
with solvent, and buff with
8.
Place large thick steel
flint paper. Wipe off with a
washer on gear shaft.
clean cloth.
9.
Insert cotter pin in hole at
(k) Clean and service gears as fol-
end of gear shaft and
lows:
spread prongs to secure.
4-34
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