Table 4-2.
Troubleshooting (Continued
TEST OR
MALFUNCTION
INSPECTION
CORRECTIVE ACTION
8. Gate Valve
- Check for loose valve
- Tighten B-Nut.
Assembly
stem B-Nut.
leaking
- Check female coupling
- Remove and replace gaskets
(Centd)
gaskets for damage or
(Ref. para 4-12).
wear.
- Check male coupling
for dirt, damage or
wear.
- Remove dirt or foreign ob-
jects from coupling. If
leak continues, replace
male coupling.
4-8