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 TM 55-1905-223-24-3
(2) Cleaning with a dry cloth is satisfactory when the components are small, the surfaces to be
cleaned are accessible, and only dry dirt is to be removed.
WARNING
High pressure compressed air tanks, piping systems, and air operated devices
possess potential for serious injury to eyes and exposed areas of skin due to
escaping air pressure.
(3) Blowing out dirt with compressed air is usually effective, particularly when the dirt has collected in
places which cannot be reached with a cloth. Use clean dry air at 30 psi (206 kPa).
WARNING
Adequate ventilation must be available to avoid fire, explosion, and health hazards
where solvents are used. Avoid breathing solvent vapors.
CAUTION
Prevent getting solvent on insulating varnishes or deterioration of varnish will occur.
(4) If accumulated soil contains oil or grease, an approved petroleum distillate solvent is usually
required to remove it.
b. Inspect the exciter stator and rotor.
(1) Check for loose, frayed, or burned windings.
(2) Visually check for score marks in the bore of the stator caused by rubbing of the stator against the
rotor.
(3) Check the mating surfaces of the rotor for burrs.
(4) Check for score marks on the outside of the rotor caused by rubbing.
(5) Replace the exciter stator and rotor if any of the above damage is found.
c. Inspect the generator main rotor assembly.
(1) Check for loose, frayed, or burned windings.
(2) If damaged, replace the main rotor.
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