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TM 55-2915-335-30&P
2-18. ARMATURE AND FIELD TUBE ASSEMBLY - lNSPECT/REPLACE (Cont)
2-18
Do not dig into resin which bonds com-
mutator sections together. Removal of
resin may cause permanent damage to
armature.
(1)
(2)
(3)
Use soft wire probe, such as a paper clip, to
scrape between commutator sections.
Remove only soft debris. Do not dig into
hard resin core.
Wash armature with dry cleaning solvent
(Item 7, Appendix C) and nonwoven cloth
(Item 1, Appendix C). Use soft bristled brush
to scrub armature, if needed. Dry armature
with compressed air at 30 psi (207 kPa) max-
imum.
Dark areas may be seen on commutator sec-
tions. To remove, polish commutators with
600 grit, wet or dry emery paper.
b. Clean Field Tube
(1)
(2)
Scrub inside of field tube with soft bristle
brush and solvent. Remove all sludge or
deposits from around magnets.
Wipe clean with nonwoven cloth dipped in
solvent. Dry with compressed air, 30 psi (207
kPa) maximum.
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