TM-5-4310-389-14
REPLACE
REPAIR
a.
Removal.
1.
Remove service line from PMV.
2.
Remove PMV.
b.
Disassemble (figure 4-70).
1.
Loose jam nut (11) on PMV.
2.
Remove adjusting screw (10).
3.
Remove spring (9) and pad assembly (8).
4.
Remove screw seat (3) from inlet side.
5.
Remove ball (4) and plunger assembly (6). Remove and discard 0-ring (7).
6.
Inspect the screw seat and ball for nicks, scratches, pitting, and unusual wear.
Figure 4-70. Pressure Maintaining Valve (PMV)
4-109
