OPERATION. - TM-5-5430-226-120025

TM 5-5430-226-12

2-8. ASSEMBLY AND PREPARATION FOR USE - cont.

(6) Install 4-inch gate valve (24). Installation of the 4-inch gate valve is optional. Your system operating

requirements will determine if installation is necessary. If required, install the gate valve as follows:

(a) Open locking arms (21 and 26) and remove cap (27) and plug (28). To install gate valve in

discharge line, open locking arms (21) on gate valve (24) coupling. Position female coupling of gate

valve over discharge elbow (9). Push gate valve onto elbow and pull gate valve lock arms (21) in

toward valve. Make sure coupling is securely connected.

(b) Open locking arms (21 and 26) and remove cap (27) and plug (28). To install gate valve (24) in filler

line, position male coupling (23) in filler elbow (17). Push gate valve into elbow and pull locking

arms (25) on filler elbow in toward coupling. Make sure coupling is securely connected.

(7) Connect water tank to a water distribution system as follows:

NOTE

Refer to applicable water distribution systems manual for specific system installation

requirements.

(a) Connect system discharge hose to water tank filler elbow (17). Make sure coupling is securely

connected.

(b) Connect system noncollapsible suction hose to water tank discharge elbow (9).

(8) Ensure all couplings are securely connected.

2-9. OPERATION.

a. General. The fill mode of operation fills the water tank and the discharge mode draws water from the tank. The

fill and discharge modes can occur at the same time. Water is pumped to and drawn from the water tank by

components of a water distribution system. Operator control of the water tank during all modes of operation is

limited to the drain control and 4-inch gate valves.

b. Fill Mode.

(1)

Verify that drain control valve (4) is closed.

(2)

Verify that vent assembly relief valve (29) is not stuck closed.

(3)

If 4-inch gate valve (24) is installed on discharge elbow (9), close gate valve.

(4)

If 4-inch gate valve (24) is installed on filler elbow (17), open gate valve.

(5)

Close water system discharge circuit gate valve (refer to applicable system manual).

(6)

Open water system fill circuit gate valve(s) (refer to applicable system manual).

(7)

Start system fill circuit water pumps (refer to applicable system manual).

(8)

Allow water to flow into tank until full, or required amount is received.

(9)

If 4-inch gate valve (24) is installed on filler elbow (17), close gate valve.

(10)

Close water system fill circuit gate valve(s) (refer to applicable system manual).

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