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TM 9-4110-257-14
2-6. OPERATOR CHECKS. - Continued
d. Check the pressure gage (DISCHARGE PRESSURE) (8) periodically to be sure it is between 165 and 250 psi
(1139 and 1725 kPa).
e. Check the compound gage (SUCTION PRESSURE) (9) periodically to be sure it is between 0 and 15 psi (0 and
104 kPa).
NOTE
An occasional flash of bubbles in the sight indicator (SIGHIT GLASS) port
is normal. The sight indicator can be viewed looking through the side
condenser door.
f. Check the sight indicator (SIGHT GLASS) (10) port to be sure it is clear. The center indicator should be green
or chartreuse in color.
NOTE
Occasional bubbles in the compressor sight glass oil is normal. The sight
glass can be viewed looking through the front bottom panel.
g. Check the compressor sight glass (11) port to be sure the oil is clear and the level is between 1/4 and 1/2 up the
port.
h. Check the FUEL GAGE (4) periodically to be sure it is indicating a fuel level above 1/4.
2-7. SHUTDOWN PROCEDURES. See figure 2-4.
NOTE
If the refrigeration unit is to be left off for several days, it must be pumped
down. Notify Unit Maintenance.
a. Place the toggle switch (START/RUN, OFF, GLOW PLUG) (5) handle in the OFF position.
b. When the refrigeration unit stops running, push the circuit breaker button (ENGINE FAULT RESET) (3) to put it
in the off position (button extended with white band exposed).
c. Notify unit maintenance if the refrigeration unit is to be put into administrative storage for several days.
2-8. DECALS AND INSTRUCTION PLATES.
Decals and instruction plates are illustrated in the following figure.
2-26
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