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4-16 Fuel Transfers - Cont'd.
n.
Transfer Fuel from a Primary Module Tank to the Other Tank in the Same Module
To transfer fuel from primary module tank T5J to primary module tank T6J via P3J, proceed as described below. For a
similar transfer from T6J to T5J, the routing can readily be followed on P&ID, Fig. 4-1.
1.
Open valves V40J, V41J, V42J, V43J, V44J, V45J, V46J, V38J, and V47J.
2.
Start and operate pump P3J.
3.
When transfer is complete, shut down P3J and close all valves.
CAUTION
DRY PUMP SUCTION
Do not continue pumping from a tank when the top goes nearly flat. It is best to leave some fuel in the supplying tank
unless the requirement is to completely evacuate the tank. Operating pump with a dry suction can ruin the pump.
o.
Transfer Fuel from a Secondary Module Tank to the Other Tank in Same Module
To transfer fuel from a secondary module tank to the other tank in the same module, proceed as outlined below for a
transfer from tank T1J to tank T2J. Transfers from T2J to T1J, T3J to T4J, or T4J can readily be understood by studying
the P&ID flow diagram, Fig. 4-1.
1.
Open valves V6J, V7J, V 11J, V12J, V14J, V15J and V8J.
2.
Start and operate pump P1J.
3.
When transfer is complete, shut down P1J and close all valves.
CAUTION
DRY PUMP SUCTION
Do not continue pumping from a tank when the top goes nearly flat. It is best to leave some fuel in the supplying tank
unless the requirement is to completely evacuate the tank. Operating pump with a dry suction can ruin the pump.
p.
Transfer Fuel from a Tank in One Secondary Module to a Tank in the Other Secondary Module
To transfer fuel from a tank in one secondary module to a tank in the other secondary module (Module A to Module B), a
transfer from tank T1 J to T3J will be used as the example. The routing between other combinations of tanks can readily
be determined by study of the P&ID, Fig. 4-1.
4-45
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