TM
11-5835-243-34/EE641-AA-MMI-010/E154
MTT/TO
31S3-4-110-1
(2) Remove four screws securing rear cap to
out from stator. If armature is accidently
motor assembly housing.
removed from stator, entire motor
assembly must be replaced.
CAUTION
Hold down shaft which is located in
(3) Hold down capstan and carefully remove
center of cap when removed rear housing
front cap. Remove bearing from cap.
cap of motor assembly. This will prevent
WARNING
armature from being pulled out of stator.
Use isopropyl alcohol in a well-ventilated
If armature is accidently removed from
area. Avoid prolonged inhalation of
stator, entire motor must be replaced.
fumes. Keep alcohol and fumes away
(3) Hold down shaft (located in center of rear
from flame or sparks.
cap) and carefully remove cap. Remove bearing from
(4) Clean inside of front cap with lint-free cloth
cap.
moistened with i s o p r o p y l alcohol (NSN
(4) Remove two screws securing brush
assembly to motor housing and carefully move
(5) Remove two screws securing brush
brush assembly away from housing.
assembly to motor housing and carefully lift out
(5) Clean inside of rear plate with lint-free cloth
brush assembly.
moistened with isopropyl alcohol (NSN-6810-
WARNING
00-753-4993).
Use isopropyl alcohol in well-ventilated
WARNING
area. Avoid prolonged skin contact and
Use isopropyl alcohol in a well-ventilated
inhalation of fumes. Keep alcohol and
area. Avoid prolonged skin contact and
fumes away from flame or sparks.
inhalation of fumes. Keep alcohol and
WARNING
fumes away from flames or sparks.
Do not use compressed air for cleaning
WARNING
purposes except where reduced to less
Do not use compressed air for cleaning
than 29 pounds per square inch (psi) and
purposes except where reduced to less
then only with effective chip guarding
than 29 pounds per square inch (psi) and
and personnel protective equipment. Do
then only with effective chip guarding
not use compressed air to dry parts when
and personnel protective equipment. Do
TRICHLOROTRIFLUOROETHANE
not use compressed air to dry parts when
has been used. Compressed air is
TRICHLOROTRIFLUOROETHANE
dangerous and can cause serious bodily
has been used. Compressed air is
harm if protective means or methods are
dangerous and can cause serious bodily
not observed to prevent chip or particle
harm if protective means or methods are
(or whatever size) from being blown into
not observed to prevent chip or particle
the eyes or unbroken skin of the operation
(of whatever size) from being blown into
or other personnel.
the eyes or unbroken skin of the operator
(6) Clean commutator segments using a soft-
or other personnel.
bristle brush moistened with isopropyl alcohol
(6) Clean commutator segments using a soft-
(NSN 6810-00-753-4993). Dry commutator by
bristle brush moistened with isopropyl alcohol
using moistur-free compressed air. Wipe com-
(NSN-6810-753-4993). Dry commutator by using
mutator segments with clean lint-free cloth to
moisture-free compressed air. Wipe commutator
remove isopropyl alcohol residue.
segments with a clean lint-free cloth to remove
(7) Replace brush assembly in housing and
isopropyl alcohol residue.
secure with two screws.
(7) Replace brush assembly in housing and
(8) Replace bearing and front cap and secure
secure with two screws.
with five screws.
(8) Replace bearing and rear cap and secure
b. Tachometer Commutator.
with four screws.
(1) Remove capstan motor (para 3-29a).
Section V. TAPE CARTRIDGE MAINTENANCE
3-36. Disassembly of Tape Cartridge
3-26
