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Page Title:
PRESSURE SWITCHES- Continued |
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 TM 5-4120-386-14
5-23. PRESSURE SWITCHES-Continued.
LOCATION/ITEM
ACTION
REMARKS
Test-Continued
(Pressure)
d. Using nitrogen, pressurize
low pressure cutout switch
(10-20 PSIG range/.35-.69
k g / c m 2 range).
e. Check for no continuity
across terminals.
If continuity exists, replace
f.
defective switch.
g. Using nitrogen, pressurizing
high pressure cutout switch
(470-490 PSIG range/16.3-17.0
k g / c m 2 range).
h. Check for no continuity across
terminals.
i.
If continuity exists, replace
defective pressure switch.
Installation
Insert ends of capillary tubes
a.
through hole in partition, being
careful to avoid kinking tubes.
b. Install grommet (7) in the
partition by sliding it over both
capillary tubes.
c. Connect capillary tube flare
nuts to fittings (8).
d. Install switches (3 and 6)
and secure with two screws
(1 and 4) and two lock-
washers (2 and 5). Keep
excess capillary tubing coiled
neatly without kinks.
See E-1 and E-2,
e. Connect electrical leads and
Wiring Diagrams
remove tags.
Install mist eliminator bracket.
f.
g. Replace dehydrator.
See
h. Leak test refrigerant system.
See
Evacuate refrigerant system.
i.
See
See
Charge system.
j
k. Install Junction Box.
See
1.
Install mist eliminator.
See
See
m. Install Evaporator Inlet Louver.
n. Install Top Covers.
See
5-78
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