TM10-6640-216-13&P
5-8. REMOVE/INSTALL WATER PRESSURE SWITCH.
This task covers:
a. Removal
c. Adjustment
b. Installation
INITIAL SET-UP
Tools Required
General Mechanics Tool Kit, Item 1, Appendix B
Materials/Parts Required
Teflon Tape, Item 46, Appendix E
General Safety Instructions
WARNING
ELECTRICAL SHOCK
Before performing any maintenance actions on electrical equipment,
ensure all electrical power has been turned off. Death or serious
injury may occur from failure to do this.
REMOVAL
Remove Water Pressure Switch. (Figure 5-4).
a.
b.
c.
d.
e.
f.
g.
h.
i.
Turn the WATER PUMP switch located above the sink, to the OFF position.
Open circuit breaker CB16 located in the panelboard assembly.
Open water faucet to relieve water pressure from the system.
Loosen screw on switch cap and remove cap.
Tag and disconnect six wires from switch terminal.
Remove lock nuts from two strain reliefs.
Turn counterclockwise and remove switch from piping.
Hold the reducer and rotate the pressure switch until it disconnects and remove
defective switch.
Clean teflon tape from pressure switch and pipe.
5-10
