TM 10-4320-307-24
3-9
PIPING AND VENT ASSEMBLY REPAIR (CONT).
CLEANING/INSPECTION/REPAIR:
Dry cleaning solvent is potentially dangerous. Avoid repeated and prolonged breathing of
vapors and skin contact with the liquid. Do not use near open flame, arcing equipment, or other
ignition sources. Always wear eye protection and protective clothing.
Death or serious Injury could occur if compressed air is directed against the skin. Do not use
compressed air for cleaning or drying unless the pressure is/has been reduced to 30 psi (2.11
kgcm2) or less. When working with compressed air always use chip guards, eye protection, and
other personal protective equipment.
1.
Clean air vent valve metal components with dry cleaning solvent and dry with compressed air.
2.
Inspect air vent valve metal components for cracks, rust, corrosion, or other damage.
3.
Repair air vent valve by replacing packings, gaskets, and seats.
ASSEMBLY:
1.
Install seat (1) into body (2).
2.
Install disc (3) and stem disc connecting ring (4).
3.
Install gasket (5), bonnet (6) and fasten with four
bolts and lockwashers (7).
4.
Install new packing (8).
5.
Install gland bolt studs (9).
6.
Install new packing gland (10).
7.
Install gland flange (11).
8.
Install gland nut (12).
9.
Install yoke nut (13).
10. Install yoke nut locker (14).
11. Install handwheel (15).
12. Install handwheel nut (16) and washer (17).
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