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 (a) To
assemble,
reverse
order
of
on lockwashers back and remove bearing locknuts and
disassembly.
lockwashers from armature shaft.
(b) Lubricate new bearing felts in accordance
(f) Pull bearings from armature shaft. Use
with LO 55-1925-204-12-7.
bearing puller (TM 55-506).
(c) Sand new brushes to contour of
(5) Cleaning and inspection.
commutator. Blow out carbon dust. Adjust brush tension (TM
(a) Blow accumulations of carbon dust and
55-506).
dirt from motor windings with dry, low-pressure (10 psi)
(d) After motor is assembled, rotate by hand
compressed air.
to determine if armature and shaft move freely.
(b) Wipe all parts with a lint free cloth
(7) Installation.
moistened with cleaning solvent conforming to FED SPEC P-D-
(a) Position motor on frame and replace the
680.
four capscrews and lockwashers that were removed.
(c) Inspect bearing for roughness. Replace
(b) Replace friction clutch and pump housing
defective bearings.
(d, above).
(d) Inspect brushes for chipping and wear.
Replace defective brushes (TM55-506).
l. Controller.
For controller maintenance, refer to
(e) Inspect brush holders. Replace defective
brush holders.
(f) Inspect motor windings for damaged
5-49.
Fresh Water and Sanitary System Pump (No. 1892)
insulation. Replace motor assembly if windings are defective.
(g) Inspect commutator for roughness or
reciprocating type piston pump, vee-belt driven by an electric
pitting. Smooth with sandpaper. If commutator requires
motor. The piston of the pump is in a housing separate from
turning in a lathe, report fact to higher maintenance level.
the crankshaft and connecting rod.
(6) Assembly.
5-126
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