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TM 10-4320-324-14
(4)
Remove two screws (8), cover (9), and brush assembly (3).
b. Cleaning/Inspection.
(1)
Inspect brush assembly for excessive wear. Replace brush if 3/16 in. or less extends beyond bottom of holder.
(2)
Inspect for foreign material, oil or dirt.
NOTE
•
Correct tension to move brush against spring to 4 to 6 ounces.
•
Resistance should not vary when brush and connecting wire is moved around.
(3)
Inspect brush for correct spring tension.
NOTE
Use a 12 volt test lamp or ohmmeter for the
following procedures.
(4)
Insulation test. Test point A to point D.
(5)
No circuit indicates no short circuit -assembly is correct.
(6)
Continuity test. Test point A to point c and point D to
point E.
(7)
A continuous circuit indicates no open connection
assembly is correct.
5-11
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