TM 9-4120-407-14
Table 3-2. Unit Preventive Maintenance Checks and Services for Model F36T-MPl - Cont
Location
Item To
Item
Interval
Not Fully Mission Capable
Procedures
Check/Service
No
if:
31
Operation Checks -
1. Turn potentiometer
Annually
Cont
TEMPERATURE control knob
to fully WARM (clockwise)
position, then turn MODE
selector rotary switch to
COOL. After a short delay
(approximately five seconds)
the fan should start. Hold
your hand in air flow from
conditioned air outlet grille;
there should be no change in
temperature. Now turn
potentiometer
TEMPERATURE control knob
to fully COOL
(counterclockwise) position.
The fan will stop, after a
short delay
(approximately five seconds)
should start. Feel outlet air
temperature begin to drop.
Leave controls in present
position and perform next
check.
m. After 15 minutes of operation
check the sight glass and
compare refrigerant condition
with the color coded
information plate provided.
n
Turn MODE selector rotary
switch to OFF RESET and
observe that all air
conditioner functions cease.
o.
Set-up the air conditioner for
the desired operational
mode.
p. Record performance of PMCS,
including corrective actions
taken.
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