TM 5-4310-377-13
3-12. PRESSURE SWITCH - Continued.
e. Installation-Continued.
(1) Install conduit (1) to pressure switch (2) and secure with nut (3).
(2) Connect motor starter box wiring (4) per tagged identification.
(3) Connect unloader tube to pressure switch (2) and tighten nut (5) securely.
(4) Install cover (6) and secure with bolt (7).
NOTE
Run compressor and ob-
serve pressure gage to
monitor cut-in/out pres-
sure.
Figure 3-10. Pressure Switch, Adjustment.
NOTE
The design cut in pressure is 175 psi 10 psi (12.5 0.70 kgs/cm2) and cut out
pressure is 200 psi to -10 psi.
(1) To increase the cut-in/out pressure, turn screw (1) clockwise.
(2) To decrease the cut-in/out pressure, turn screw (1) counterclockwise.
(3) To increase the difference between the cut-in and cut-out pressure, turn screw (2) clockwise.
(4) To decrease the difference between the cut-in and cut-out pressure, turn screw (2) counterclockwise.
END OF TASK
3-27
