TM 9-4120-378-14
5.21 PRESSURE SWITCHES. - Continued
Location/Item
Action
Remarks
Removal
- Continued
c.
Unscrew flare nuts from capillary tube connections
(8). Remove grommet (7) from partition and care-
fully pull capillary tubes through partition.
d.
Remove pressure switches (3 and 6).
Test for continuity across terminals of switch. If no
a.
Test (Electrical)
continuity exists, press the reset button and retest.
If the switch exhibits continuity, switch may be
b.
good.
c.
If the switch does not indicate continuity, replace.
d.
Using nitrogen, pressurize low pressure cutout
switches (10-20 psig range/.35-.69 kg/cm2 range).
5-65
