brittle, and difficult to handle, Be careful
when handling the cables and when con-
Note.. To turn off the power in an emergency,
necting them to the AN/MSC-31 so that
operate the MAIN circuit breaker switch to OFF.
kinks and unnecessary loops will not result
a. Major Components. Stopping proce-
in permanent damage. Make sure that the
dures are not required for the SB-22(*)/
binding posts and cable receptacles on the
PT or the TA-312/PT. Refer to paragraph
outside of the AN/MSC-31 are free of
52 for procedures to be performed for
frost, snow, and ice by replacing the covers
s t o r a g e or transit of the AN/MSC-31.
on the receptacles and closing the covers
b. S-183/MSC-31 Components.
on the entrance boxes when they are not in
(1) Electric heaters. O p e r a t e t h e
use. Lower the folding side panels when the
TEMPERATURE CONTROL to its
entrance box covers are open. Replace the
lowest setting and the HEAT-OFF-
connector cover as soon as the connector
FAN switch to OFF.
is disconnected from the equipment; never
(2) Intercommunication Stat ion LS-
drag or place an open connector in the
147(*)/FI. Operate the OFF-SEND
snow.
switch to OFF.
b. Hot Climates. In hot, dry climates,
the connectors, receptacles, and binding
Note. After the other S-183/MSC-31 com-
post are subject to damage from dirt and
ponents ((1) and (2) above) have been turned
dust. Lower the folding side panels when
off, allow the exhaust blowers to remain in
the entrance box covers are open. Close
operation for at least 10 minutes to evacuate
the covers on the entrance boxes when
all smoke and fumes before completing the
they are not in use and replace the covers
stopping procedures and closing the shelter
door.
on the cable connectors. Never drag or
place an open connector on the ground.
(3) Blowers. Operate the BLOWER 1
c. Warm, Damp CIimates. In warm,
and BLOWER 2 switches to OFF.
damp climates, the equipment is subject
to damage from moisture and fungi. Wipe
c. Circuit Breaker and Light Switches.
Operate all circuit breaker and light
all moisture and fungi from the exterior
switches to OFF.
of the equipment with a lint-free cloth.
