5.0
Maintenance Instructions (continued)
5.3
Troubleshooting (continued)
Table IV. Troubleshooting (continued)
Malfunction
Test or Inspection
Corrective Action
8. Gate Valve
- Check for loose or
- Tighten or replace nuts
Assembly
missing hexagon
and bolts as necessary.
leaking
head bolts and nuts.
- Check for loose valve
- Tighten B-Nut.
stem B-Nut.
- Check female coupling
- Remove and replace gaskets
gaskets for damage or
(Ref. Paragraph 5.4.6).
wear.
- Check male coupling
- Remove dirt or foreign
for dirt, damage or
objects from coupling.
wear.
If leak continues, replace
male coupling.
5.4
Corrective Maintenance
5.4.1
General. This section contains disassembly, repair and replace, and reassembly instructions for
the tank.
5.4.2
Emergency Repairs to Tank Envelope. There are two ways to repair the tank envelope. Wooden
plugs should be used as an immediate repair to stop the flow of water from the tank until it is
possible to install a sealing clamp. Replacement may not be possible until the water
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