TM 10-4330-237-13&P
(2)
Depress and latch open the manual vent valve (2) to relieve any pressure from filter vessel (3).
(3)
Remove manual vent valve (2) from filter vessel (3).
b. Installation. (Figure 4-14.)
(1)
Apply a light, even coat of thread sealant to the threads on the manual vent valve (2). Clean off any thread
sealant from below the threaded area. Thread sealant or any foreign material on the bottom end of the manual
vent valve (2) may clog the manual vent valve (2) and prevent it from operating properly.
(2)
Install the manual vent valve (2) in the filter vessel boss (4).
(3)
Close the manual vent valve (2).
(4)
Place grounding cable (1) in stowage location.
Figure 4-14. Manual Vent Valve Replacement
4-33