Section IV.
CORRECTIVE MAINTENANCE
4-7
GENERAL.
This section contains disassembly, repair and replace, and reas-
sembly instructions for the tank.
4-8
EMERGENCY REPAIRS TO TANK ENVELOPE. There are two
envelope.
Wooden plugs should be used as an immedi
ways to repair the tank
ate 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 height and
internal pressure of the tank have been reduced by discharging or draining
water.
Plugs can be used for tears up to 1 1/2 inches (3.81 centimeters).
Sealing clamps can be used for tears up to 6 inches (15.24 centimeters).
a.
Repairs with Wooden Plugs.
(1) Insert small end of plug into puncture. Turn clockwise until
leak stops or slows.
(2) Remove plug and install clamp when operation permits.
b.
Repairs with Clamps.
See figure 4-1.
(1) Select proper size clamp using these guidelines for tears:
less than 2-inch (5.08
use 3-inch clamp
centimeter).
2- to 4-inch (5.08 - to
10.16 centimeter).
4- to 6-inch (10.16 - to
15.24 centimeter).
use 5-inch clamp
use 7 1/2-inch clamp
4-9
