CAUTION: DO NOT LEAVE THE CONNECTOR DISCONNECTED WITH ELECTRICAL POWER ON. DAMAGE TO THE INDICATORS CAN OCCUR WITH A CIRCUIT THAT IS KEPT OPEN.
(b)
With electrical power on, disconnect and immediately reconnect the connector on the back of the fuel quantity indicator for the applicable tank on the center instrument panel, P2, in the flight compartment.
(c)
Defuel the applicable tank to a fuel level below 88% fuel (AMM 28-23-0/201).
(2)
Continue the refuel operation (AMM 12-11-02/301).
(3)
At the first maintenance opportunity, do the task to troubleshoot and repair the pressure fueling system (AMM 28-21-00/101).
4. Refuel Operation - Inoperative Fueling Shutoff Valve
A. General
(1)
You can refuel a fuel tank with a fueling shutoff valve (refuel valve) that does not open electrically, but can be opened manually.
(2)
There is no automatic fueling shutoff valve shutdown or overfill protection when a fueling shutoff (refuel) valve is opened manually. If you put too much fuel into the tank, fuel will overfill the tank and go into the surge tank(s). If the fuel flow is not stopped, the surge tank will overfill and an overboard fuel spill will occur.
B. Procedure
(1)
Read and obey the precautions in this task: Precautions and Limits for Fuel Servicing (AMM 12-11-01/301).
WARNING: OBEY ALL THE FUEL SERVICING AND PRESSURE REFUEL PRECAUTIONS IN AMM 12-11-01/301. FAILURE TO OBEY THE PRECAUTIONS CAN CAUSE SERIOUS INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(2)
Electrically ground the airplane and the fuel truck (AMM 20-40-11/201).
(3)
Connect the bonding cable on the refueling hose to the ground jack on the wing.
(4)
Make sure the access door for the fueling station is open.
(5)
Make sure the fueling quantity indicator for the tank you will refuel is operative.
(6)
Do an inspection of the fueling receptacle adapter before you connect the refuel nozzle on the fuel hose:
(a)
Make sure there are no fuel leaks.
(b)
Make sure there is not contamination at the fueling receptacle adapter.
(c)
Make sure the fueling receptacle adapter is clean and does not have any damage.
NOTE: The bonding cable is not necessary if there is electrical continuity between the nozzle and the receptacle.
500
May 01/03 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 12-11-04 Page 305
CAUTION: MAKE SURE THE FUELING RECEPTACLE ADAPTER IS CLEAN AND DOES NOT HAVE DAMAGE. IF THE FUELING RECEPTACLE ADAPTER HAS DAMAGE, IT CAN CAUSE A FUEL LEAK.
(7)
Do these steps to put fuel into the tank with the fueling shutoff valve that does not open:
(a)
Connect the refuel nozzle to the fueling receptacle.
(b)
Activate the fueling shutoff control switch (deadman switch) to start the fuel flow.
(c)
For the tank with the fueling shutoff valve that does not open, push the red manual override button on the fueling shutoff valve to open the fueling shutoff valve for that tank.
CAUTION: DO NOT LET THE FUEL QUANTITY BE MORE THAN THE MAXIMUM FUEL QUANTITY FOR THE APPLICABLE TANK. THERE IS NO AUTOMATIC SHUTOFF. A FUEL SPILL CAN OCCUR.
(d)
Continue to hold down the manual override button.
(e)
Monitor the fueling quantity indicator for the tank with the fueling shutoff valve that does not open.
(f)
When the fueling quantity indicator shows a full tank or the fuel quantity scheduled for that tank, release the red manual override button.
(g)
Release the deadman switch to stop the fuel flow.
(h)
Remove the refuel nozzle from the airplane fueling receptacle.
(8)
Use the fuel measuring sticks to make sure the correct fuel quantity is in the tank with the fueling shutoff valve that does not open (Fig. 301).
(a)
Make sure you know the attitude of the airplane.
(b)
Use the fuel measuring stick procedure in the applicable fuel measuring stick document to calculate the fuel quantity in the applicable tank.
(9)
Disconnect the bonding cable that you connected between the fueling source and the airplane (AMM 20-40-11/201).
(10)
Disconnect the ground cables for the fuel source (AMM 20-40-11/201).
(11)
Disconnect the ground cables for the airplane (AMM 20-40-11/201).
(12)
Close the access door for the fueling station.
(13)
At the first maintenance opportunity, do the task to troubleshoot and repair the pressure fueling system (AMM 28-21-00/101).
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