TM 5-4310-389-14
3-41 PRESSURE MAINTAINING VALVE.
DESCRIPTION
This task covers:
Adjust
INITIAL SETUP
Tools:
Equipment conditions:
General Mechanic Tool Kit
System operating (paragraph 2-9).
Materials/parts:
None
INSPECT
Check to see that the pressure maintaining valve (PMV) maintains 1800 to 2000 psi by observing the final pressure
gauge with the service line valve venting to the atmosphere. Ensure service line pressure is maintained below 500 psi.
WARNING
Due to the sensitive nature of the pressure maintaining valve, adjustment should be made by
qualified personnel.
ADJUST
If final pressure is not 1800 to 2000 psi, adjust PMV using an 8 mm allen wrench (counterclockwise to decrease pressure,
clockwise to increase pressure).
3-77
