TM 9-4120-404-14
WARNING
HIGH VOLTAGE
is used in operation of this equipment.
DEATH ON CONTACT
may result if personnel fail to observe safety precautions.
Never work on electrical equipment unless there is another person nearby who is familiar
with operation and hazards of equipment and who is competent in administering first aid.
When technician is aided by operators, he must warn them about dangerous areas.
Whenever possible, input power supply to equipment must be shut off before beginning
work. When working inside, after power has been turned off, always ground every part
before touching it. Be careful not to contact high voltage connections when installing or
operating this equipment.
WARNING
Whenever nature of operation permits, keep one hand away from equipment to
reduce hazard to current flowing through vital organs of body. Do Not operate
equipment without all guards, louvers, and covers in place and tightly secured.
CAUTION
Do not allow excessive amounts of water to enter unit.
Water can collect in
electrical component areas and cause electrical shorts.
a. More frequent inspection and cleaning of the condensate trap and drain lines to insure proper drainage and
prevent accumulation of water inside the cabinet.
b. Roll down and secure the fabric cover on the back of the cabinet during periods of wet, windy weather when the
air conditioner is not in operation.
c. Roll up and secure the fabric cover during dry spells when the air conditioner is not in operation so that the interior
2-20. OPERATION in SALT AIR OR SEA SPRAY. Salt air or sea spray may cause many of the same clogging
problems as encountered when operating in a dusty or sandy environment. in addition, the nature of salt presents serious
corrosion problems. Frequent cleaning is necessary during which all exposed surfaces should be thoroughly sprayed,
rinsed, or sponged with fresh water to remove salt. The fabric cover on the back of the cabinet should be rolled down and
secured during all periods when the air conditioner is not in operation.
2-21