TM 5-4310-362-14
Section III. PRESSURE SWITCH MAINTENANCE INSTRUCTIONS
6-10.
MAINTENANCE SUMMARY
This task covers:
a.
Removal.
b.
Cleaning.
c.
Inspection
d.
Installation.
e.
Adjustment.
INITIAL SETUP
Personnel Required
General Safety Instructions
1
Disconnect power before removing switch.
TASK SUMMARY
No.
Task
Ref.
Remarks
1
Disconnect main power
2
Disconnect wiring from pressure switch
3
Disconnect unloader tube
Model 20-911 only
4
Unscrew pressure switch
Pressure switch may be inspected while installed.
Remove switch only if it is bad.
5
Clean and inspect switch
6
Install switch
7
Connect unloader tube
Model 20-911 only
8
Connect wiring
9
Adjust cut-in pressure for 160 psi.
Adjust cut-out pressure for 180 psi.
Change 1 6-13
