TM 5-4310-385-13
REMOVAL.
WARNING
Be sure main power is disconnected before doing any work on electrical systems.
Voltages present in this equipment can cause injury or death.
a.
Disconnect the main power and turn the ON/OFF switch OFF.
WARNING
Air in tank must be discharged before removal of pressure switch to prevent
serious injury.
b.
Open the drain cock on bottom of tank to discharge all air pressure. Close drain cock.
c.
Loosen screw (1) and remove cover (2).
d.
Tag and label motor and power wires (3).
e.
Loosen terminal screws (4) and disconnect wires from switch terminals.
f.
Remove conduit locknuts (5) and remove conduit (6).
g.
Remove unloader line (7) at fitting.
h.
Unscrew pressure switch by hand from pipe fitting (8).
CLEANING.
WARNING
Clean pressure switch with compressed air no greater than 30 psi. Eye protective
equipment must be worn when cleaning with compressed air.
a.
Remove loose dirt from inside of pressure switch with soft brush and compressed air.
INSTALLATION.
WARNING
Be sure main power is disconnected before doing any work on electrical systems.
Voltages present in this equipment can cause injury or death.
a.
Install the pressure switch onto pipe fitting (8).
b.
Install the unloader line (7) at the fitting.
c.
Remove the cover (2).
d.
Attach the conduit (6) with locknuts (5).
e.
Attach wires (3) to switch terminals as tagged and tighten screws (4).
f.
Replace cover (2) and tighten screw (1).
g.
Connect the main power and turn the ON/OFF switch ON.
h.
Compressor should start up if switch is properly connected.
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