Refuel Valve - Refuel Procedure Using Manual Plunger Override

TASK 28-25-00-040-005-A
Refuel Valve - Refuel Procedure Using Manual Plunger Override

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

WARNING: STOP THE FUEL TANKER 60 m (196.85 ft) FROM THE AIRCRAFT NOSE WHILE THE WEATHER RADAR OPERATES. DO NOT OPERATE THE FUEL TANKER/PUMP UNIT UNTIL YOU STOP THE OPERATION OF THE WEATHER RADAR.

WARNING: MAKE SURE THE AREA AROUND THE AIRCRAFT IS SAFE BEFORE YOU START THE REFUEL/DEFUEL PROCEDURE. IN THE SAFETY AREA, DO NOT:

SMOKE
MAKE SPARKS OR FIRE
USE ANY EQUIPMENT WHICH IS NOT APPROVED FOR REFUEL/DEFUEL PROCEDURES.

AIRCRAFT FUEL IS FLAMMABLE.

WARNING: DO NOT SPILL FUEL ON THE ENGINES OR THE BRAKES. IF YOU SPILL FUEL ON ENGINES OR BRAKES THAT ARE HOT, IT CAN CAUSE FIRES.

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

ZONE: 140
ZONE: 190
ZONE: 500
ZONE: 600
Task Summary

Access	Test	Specific Tools	Mhr	E/T	Nb Men
YES	YES	YES	0.7	0.7	1

1. Reason for the Job
MMEL 28-25-03A
REFUEL VALVE
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT)
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	ACCESS PLATFORM 4M (13 FT)
No specific	AR	PLACARD
No specific	2	ROD - NON METALLIC
No specific	AR	SAFETY BARRIER(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
140	CENTER WING
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT
500	LEFT WING
600	RIGHT WING
522JB, 622JB, 744
622KB
734
622HB
192MB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-001-A	General Refuel/Defuel Safety Procedures
TASK 12-11-28-650-002-A	Refuel/Defuel Safety Procedures for use in the Hangar
TASK 12-34-24-869-001-A	Aircraft Bonding and Grounding (Earthing) for the Refuel/Defuel or Oxygen Servicing Operations
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 28-25-00-869-001-A	Fuel Transfer
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 57-41-37-000-006-A	Removal of the Access Panels
TASK 57-41-37-400-006-A	Installation of the Access Panels
Refuel/Defuel Control Panel ** ON A/C NOT FOR ALL
Refuel Valve ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panels 800VU and 801VU ** ON A/C NOT FOR ALL
Refuel Valve ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panels 800VU and 801VU ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panels 800VU and 801VU ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 28-25-00-941-079-A

A. Safety Precautions
(1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).
(2) You must obey the refuel/defuel safety procedures (Ref. AMM TASK 12-11-28-650-001) and (Ref. AMM TASK 12-11-28-650-002).
(3) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 28-25-00-010-077-B ** ON A/C NOT FOR ALL

B. Get Access
(1) Open access panel 192MB to get access to refuel panel 800VU:
(a) If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.
(2) Put an ACCESS PLATFORM 4M (13 FT) adjacent to refuel coupling 40QM.
(3) To get access to left refuel valve 7QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 522.
(b) Remove access panel 522JB (Ref. AMM TASK 57-41-37-000-006).
(4) To get access to right refuel valve 8QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 622.
(b) Remove access panel 622JB (Ref. AMM TASK 57-41-37-000-006).
(5) To get access to center-tank refuel-valve 10QU, do the steps that follow:
(a) Open the right Main Landing Gear (MLG) door 744 (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that a 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(c) Put an ACCESS PLATFORM 2M (6 FT) in position below zone 148.

Subtask 28-25-00-010-077-D ** ON A/C NOT FOR ALL

B. Get Access
(1) Put an ACCESS PLATFORM 4M (13 FT) adjacent to refuel coupling 40QM.
(2) Open access panel 622KB to get access to refuel panel 800VU:
(a) If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.
(3) To get access to left refuel valve 7QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 522.
(b) Remove access panel 522JB (Ref. AMM TASK 57-41-37-000-006).
(4) To get access to right refuel valve 8QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 622.
(b) Remove access panel 622JB (Ref. AMM TASK 57-41-37-000-006).
(5) To get access to center-tank refuel-valve 10QU, do the steps that follow:
(a) Open the right Main Landing Gear (MLG) door 744 (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that a 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(c) Put an ACCESS PLATFORM 2M (6 FT) in position below zone 148.

Subtask 28-25-00-010-077-F ** ON A/C NOT FOR ALL

B. Get Access
(1) Open access panel 192MB to get access to refuel panel 800VU:
(a) If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.
(2) Put an ACCESS PLATFORM 4M (13 FT) adjacent to refuel coupling 100QM(40QM).
(3) To get access to left refuel valve 7QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 522.
(b) Remove access panel 522JB (Ref. AMM TASK 57-41-37-000-006).
(4) To get access to right refuel valve 8QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 622.
(b) Remove access panel 622JB (Ref. AMM TASK 57-41-37-000-006).
(5) To get access to the center-tank refuel valve 10QU, do the steps that follow:
(a) Open the right Main Landing Gear (MLG) door 744 (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that a 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(c) Put an ACCESS PLATFORM 2M (6 FT) in position below zone 148.

Subtask 28-25-00-010-077-G ** ON A/C NOT FOR ALL

B. Get Access
(1) Open access door 192MB to get access to refuel/defuel panels 800VU and 801VU:
(a) If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.
(2) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE adjacent to refuel/defuel coupling 40QM.
(3) Remove access panel 622HB (Ref. AMM TASK 57-41-37-000-006).
(4) To get access to left refuel valve 7QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below zone 522.
(b) Remove access panel 522JB (Ref. AMM TASK 57-41-37-000-006).
(5) To get access to right refuel valve 8QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below zone 622.
(b) Remove access panel 622JB (Ref. AMM TASK 57-41-37-000-006).
(6) To get access to center-tank refuel-valve 10QU, do the steps that follow:
(a) Open the right Main Landing Gear (MLG) door 744 (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that the 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(c) Put an ACCESS PLATFORM 2M (6 FT) in position below zone 148.
(7) To get access to ACT refuel valve 41QU, do the steps that follow:
(a) Open the left MLG door 734 (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that the 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(c) Put an ACCESS PLATFORM 2M (6 FT) in position below zone 147.

Subtask 28-25-00-010-077-H ** ON A/C NOT FOR ALL

B. Get Access
(1) Open access panel 192MB to get access to refuel panel 800VU and 801VU:
(a) If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.
(2) Put an ACCESS PLATFORM 4M (13 FT) adjacent to refuel coupling 100QM(40QM).
(3) To get access to left refuel valve 7QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 522.
(b) Remove access panel 522JB (Ref. AMM TASK 57-41-37-000-006).
(4) To get access to right refuel valve 8QU, do the steps that follow:
(a) Put the ACCESS PLATFORM 4M (13 FT) in position below zone 622.
(b) Remove access panel 622JB (Ref. AMM TASK 57-41-37-000-006).
(5) To get access to center-tank refuel-valve 10QU, do the steps that follow:
(a) Open the right Main Landing Gear (MLG) door 744 (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that a 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(c) Put an ACCESS PLATFORM 2M (6 FT) in position below zone 148.
(6) To get access to ACT refuel valve 41QU, do the steps that follow:
(a) Open the left MLG door 734 (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that the 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(c) Put the ACCESS PLATFORM 2M (6 FT) in position below zone 147.

Subtask 28-25-00-860-060-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the aircraft and the fuel tanker/pump unit are grounded (Ref. AMM TASK 12-34-24-869-001) and are electrically bonded together correctly.

NOTE: The electrical bonding is mandatory. Airbus recommends you to obey the local area regulations for grounding.

(2) Remove refuel coupling-cap 41QM.
(3) Make sure that the coupling of the fuel supply hose is clean and then connect it to refuel coupling-cap 40QM.
(4) If the intercell transfer valves are open:
(a) Refuel the aircraft until there is a minimum of 1000 kg (2204.6220 lb) of fuel in the left and right wing-tank innner-cells.
(b) On panels 49VU and 121VU, open circuit breakers 1QT and 2QT.

NOTE: It is not necessary to install the safety clips and tags on these circuit breakers.

(c) After a minimum of 5 seconds, the FQIC will de-energize.
(d) On panels 49VU and 121VU, close circuit breakers 1QT and 2QT.
(e) After a minimum of 60 seconds, the FQIC will energize again and operates the intercell transfer valves.
(f) If the intercell transfer valves stay open:

The inner and outer cells of the wing tanks fill together
The full capacity of the wing tank is less than normal
Make an entry in the aircraft technical log to correct the fuel configuration before the next flight (the wing tank outer-cells must be filled).

Subtask 28-25-00-860-060-C ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the aircraft and the fuel tanker/pump unit are grounded (Ref. AMM TASK 12-34-24-869-001) and are electrically bonded together correctly.

NOTE: The electrical bonding is mandatory. Airbus recommends you to obey the local area regulations for grounding.

(2) Remove refuel coupling-cap 101QM (41QM).
(3) Make sure that the coupling of the fuel supply hose is clean and then connect it to refuel coupling-cap 100QM (40QM).
(4) If the intercell transfer valves are open:
(a) Refuel the aircraft until there is a minimum of 1000 kg (2204.6220 lb) of fuel in the left and right wing-tank inner-cells.
(b) On panels 49VU and 121VU, open circuit breakers 1QT and 2QT.

NOTE: It is not necessary to install the safety clips and tags on these circuit breakers.

(c) After a minimum of 5 seconds, the FQIC will de-energize.
(d) On panels 49VU and 121VU, close circuit breakers 1QT and 2QT.
(e) After a minimum of 60 seconds, the FQIC will energize again and operate the intercell transfer valves.
(f) If the intercell transfer valves stay open:

The inner and outer cells of the wing tanks fill together
The full capacity of the wing tank is less than normal
Make an entry in the aircraft technical log, to correct the fuel configuration before the next flight (the wing tank outer-cells must be filled).

Subtask 28-25-00-860-060-D ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration

WARNING: MAKE SURE THAT YOU BOND THE FUEL TANKER TO THE AIRCRAFT. IF YOU DO NOT, AN ELECTRICAL DISCHARGE CAN OCCUR WHICH CAN CAUSE AN EXPLOSION OR FIRE.

(1) Obey the local regulations for grounding (earthing) the aircraft. If you must ground (earth) the aircraft:
(a) Ground (earth) the fuel tanker/pump unit and the aircraft correctly (Ref. AMM TASK 12-34-24-869-001).
(2) Bond the fuel tanker/pump unit to the aircraft (Ref. AMM TASK 12-34-24-869-001).
(3) Remove refuel/defuel coupling cap 41QM.

WARNING: MAKE SURE THAT THE FUEL SUPPLY HOSE IS CORRECTLY CONNECTED TO THE COUPLING BEFORE YOU REFUEL/DEFUEL THE AIRCRAFT. DO NOT CONNECT THE FUEL SUPPLY HOSE IF THERE ARE SIGNS OF DAMAGE TO THE AIRCRAFT COUPLING LUGS OR SLOTS.

(4) Make sure that the coupling of the fuel supply-hose is clean and then connect it to aircraft refuel/defuel coupling 40QM.

Subtask 28-25-00-860-060-E ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the aircraft and the fuel tanker/pump unit are grounded correctly (Ref. AMM TASK 12-34-24-869-001) and electrically bonded together correctly.

NOTE: Bonding is mandatory. For grounding you must obey the local area regulations.

(2) Remove the refuel coupling cap 101QM (41QM).
(3) Make sure that the coupling of the fuel supply-hose is clean and then connect it to the aircraft refuel coupling 100QM (40QM).

Subtask 28-25-00-865-068-A

D. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	FUEL/FQI/CHAN/1	1QT	A13
121VU	FUEL/FQI/CHAN/2	2QT	M27

4. Procedure
Subtask 28-25-00-650-066-B ** ON A/C NOT FOR ALL

A. Pressure Refuel Failed Closed

WARNING: BE CAREFUL NOT TO FILL THE TANKS MORE THAN NECESSARY NEAR THE END OF THE REFUEL PROCEDURE. WHEN YOU USE THE MANUAL OVERRIDE (MANUAL PLUNGER), THE HIGH-LEVEL PROTECTION SYSTEM WILL NOT STOP THE REFUELING AUTOMATICALLY. THUS THERE IS A RISK OF OVERFILLING AND FUEL SPILLAGE.

CAUTION: DO NOT REFUEL OR DEFUEL THROUGH THE TWO REFUEL/DEFUEL COUPLINGS AT THE SAME TIME. THIS IS TO PREVENT PRESSURE DIFFERENCE PROBLEMS.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(1) To prevent a fuel spill, on the panel 40VU, make sure that:

the X FEED P/BSW 4QE is released out (OFF)
the MODE SEL P/BSW 48QA is in the AUTO position
the CTR TK PUMP 1 & 2 P/BSW are released out (OFF).

(2) Start the pump on the fuel tanker/pump unit.
(3) Push and hold in the manual plunger(s) on the applicable refuel valve(s) 7QU(8QU) or 10QU.
(4) Monitor the fuel quantity on the refuel control panel 800VU.
(5) When the quantity of fuel in the tank(s) is correct, release the manual plunger(s) on the related refuel valve(s).
(6) When all the fuel quantities are correct, stop the pump on the fuel tanker/pump unit.

Subtask 28-25-00-650-086-A ** ON A/C NOT FOR ALL

B. Pressure Refuel Failed Open

CAUTION: DO NOT REFUEL OR DEFUEL THROUGH THE TWO REFUEL/DEFUEL COUPLINGS AT THE SAME TIME. THIS IS TO PREVENT PRESSURE DIFFERENCE PROBLEMS.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(1) To prevent a fuel spill, on panel 40VU, make sure that:

the X FEED P/BSW 4QE is released out (OFF)
the MODE SEL P/BSW 48QA is in the AUTO position
the CTR TK PUMP 1 & 2 P/BSW are released out (OFF).

(2) Start the pump on the fuel tanker/pump unit.
(3) Push and hold in the manual plunger(s) on the applicable refuel valve(s) 7QU(8QU) or 10QU.
(4) Monitor the fuel quantity on the refuel control panel 800VU.
(5) Stop the pump on the fuel tanker/pump unit 500 kg (1102.3110 lb) below required quantity.
(6) If fuel is still required in other tanks. Re-start the fuel tanker/pump unit and fill by increments of 500 kg (1102.3110 lb) and monitor the fuel quantity on the refuel panel 800VU and 801VU.
(7) When quantity of fuel in the tank(s) is correct, release the manual plunger(s) on the related refuel valve(s).
(8) Stop the pump on the fuel tanker/pump unit.
(9) If fuel in the applicable tank is over quantity a manual ground transfer may be required (Ref. AMM TASK 28-25-00-869-001).

Subtask 28-25-00-650-066-D ** ON A/C NOT FOR ALL

C. Pressure Refuel Failed Closed

CAUTION: DO NOT REFUEL OR DEFUEL THROUGH THE TWO REFUEL/DEFUEL COUPLINGS AT THE SAME TIME. THIS IS TO PREVENT PRESSURE DIFFERENCE PROBLEMS.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(1) To prevent a fuel spill, on panel 40VU, make sure that:

X FEED P/BSW 4QE is released (the OPEN legend is off)
MODE SEL P/BSW 4QL is in the AUTO position (the MAN legend is off)
The CTR TK L XFR P/BSW and CTR TK R XFR P/BSW are released (the OFF legend is on).

Subtask 28-25-00-650-086-C ** ON A/C NOT FOR ALL

D. Pressure Refuel Failed Open

CAUTION: DO NOT REFUEL OR DEFUEL THROUGH THE TWO REFUEL/DEFUEL COUPLINGS AT THE SAME TIME. THIS IS TO PREVENT PRESSURE DIFFERENCE PROBLEMS.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(1) To prevent a fuel spill, on panel 40VU, make sure that:

X FEED P/BSW 4QE is released (the OPEN legend is off)
MODE SEL P/BSW 4QL is in the AUTO position (the MAN legend is off)
The CTR TK L XFR P/BSW and CTR TK R XFR P/BSW are released (the OFF legend is on).

(2) Start the pump on the fuel tanker/pump unit.
(3) To refuel the wing tank(s), push and hold the manual plunger(s) on applicable refuel valve(s) 7QU(8QU).
(4) To refuel the center tank, push and hold the manual plunger on refuel valve 10QU.
(5) To refuel the ACT(s), get a suitable ROD - NON METALLIC. Put the rod through the ACT-equipment door cover and push and hold the manual plunger on refuel valve 41QU.
(6) Monitor the fuel quantity on refuel control panels 800VU and 801VU.
(7) Stop the pump on the fuel tanker/pump unit 500 kg (1102.3110 lb) below required quantity.
(8) If fuel is still necessary in other tanks:
(a) Start the fuel tanker/pump unit and fill in increments of 500 kg (1102.3110 lb) and monitor the quantity on refuel/defuel panels 800VU and 801VU.
(9) When quantity of fuel in the tank(s) is correct:
(a) Release the manual plunger(s) on the related refuel valve(s).
(10) Stop the pump on the fuel tanker/pump unit.
(11) If fuel in the applicable tank is over quantity:
(a) Do the manual ground transfer (Ref. AMM TASK 28-25-00-869-001).

Subtask 28-25-00-650-066-E ** ON A/C NOT FOR ALL

E. Pressure Refuel Failed Closed

CAUTION: DO NOT REFUEL OR DEFUEL THROUGH THE TWO REFUEL/DEFUEL COUPLINGS AT THE SAME TIME. THIS IS TO PREVENT PRESSURE DIFFERENCE PROBLEMS.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(1) To prevent a fuel spill, on the panel 40VU, make sure that:

the X FEED P/BSW 4QE is released out (OFF)
the MODE SEL P/BSW 4QL is in the AUTO position
the CTR TK L and R XFR P/BSW are released out (OFF).

(2) Start the pump on the fuel tanker/pump unit.
(3) Push and hold in the manual plunger(s) on the applicable refuel valve(s) 7QU(8QU) or 10QU.
(4) Monitor the fuel quantity on the refuel control panel 800VU.
(5) When the quantity of fuel in the tank(s) is correct, release the manual plunger(s) on the related refuel valve(s).
(6) When all the fuel quantities are correct, stop the pump on the fuel tanker/pump unit.

Subtask 28-25-00-650-086-D ** ON A/C NOT FOR ALL

F. Pressure Refuel Failed Open

CAUTION: DO NOT REFUEL OR DEFUEL THROUGH THE TWO REFUEL/DEFUEL COUPLINGS AT THE SAME TIME. THIS IS TO PREVENT PRESSURE DIFFERENCE PROBLEMS.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(1) To prevent a fuel spill, on the panel 40VU, make sure that:

the X FEED P/BSW 4QE is released out (OFF)
the MODE SEL P/BSW 4QL is in the AUTO position
the CTR TK L and R XFR P/BSW are released out (OFF).

(2) Start the pump on the fuel tanker/pump unit.
(3) Push and hold in the manual plunger(s) on the applicable refuel valve(s) 7QU(8QU) or 10QU.
(4) Monitor the fuel quantity on the refuel control panel 800VU.
(5) Stop the pump on the fuel tanker/pump unit 500 kg (1102.3110 lb) below required quantity.
(6) If fuel is still required in other tanks. Re-start the fuel tanker/pump unit and fill by increments of 500 kg (1102.3110 lb) and monitor the fuel quantity on the refuel panel 800VU and 801VU.
(7) When the quantity of fuel in the tank(s) is correct, release the manual plunger(s) on the related refuel valve(s).
(8) Stop the pump on the fuel tanker/pump unit.
(9) If fuel in the applicable tank is over quantity a manual ground transfer may be required (Ref. AMM TASK 28-25-00-869-001).

5. Close-up
Subtask 28-25-00-860-061-A

A. Aircraft Configuration
(1) Disconnect the coupling of the fuel supply hose from the aircraft refuel/defuel coupling 40QM.
(2) Put a PLACARD in the cockpit to tell persons that a refuel procedure with a manual plunger override is in progress.

Subtask 28-25-00-410-067-B ** ON A/C NOT FOR ALL

B. Close Access
(1) Install coupling cap 41QM.

CAUTION: MAKE SURE THAT THE HANDLE OF THE REFUEL COUPLING CAP POINTS AFT WHEN THE CAP IS CLOSED AND LOCKED.

(2) Close access panel 192MB.
(3) For left refuel valve 7QU, close access panel 522JB (Ref. AMM TASK 57-41-37-400-006).
(4) For right refuel valve 8QU, close access panel 622JB (Ref. AMM TASK 57-41-37-400-006).
(5) For center-tank refuel-valve 10QU, close the right MLG door 744 (Ref. AMM TASK 32-12-00-410-001).

Subtask 28-25-00-410-067-D ** ON A/C NOT FOR ALL

B. Close Access
(1) Install coupling cap 101QM(41QM).

CAUTION: MAKE SURE THAT THE HANDLE OF THE REFUEL COUPLING CAP POINTS AFT WHEN THE CAP IS CLOSED AND LOCKED.

Subtask 28-25-00-410-067-F ** ON A/C NOT FOR ALL

B. Close Access
(1) Install coupling cap 41QM.

CAUTION: MAKE SURE THAT THE HANDLE OF THE REFUEL COUPLING CAP POINTS AFT WHEN THE CAP IS CLOSED AND LOCKED.

(2) Close access panel 622KB.
(3) For left refuel valve 7QU, close access panel 522JB (Ref. AMM TASK 57-41-37-400-006).
(4) For right refuel valve 8QU, close access panel 622JB (Ref. AMM TASK 57-41-37-400-006).
(5) For center-tank refuel-valve 10QU, close the right MLG door 744 (Ref. AMM TASK 32-12-00-410-001).

Subtask 28-25-00-410-067-G ** ON A/C NOT FOR ALL

B. Close Access

CAUTION: MAKE SURE THAT THE HANDLE OF THE REFUEL COUPLING CAP POINTS AFT WHEN THE CAP IS CLOSED AND LOCKED.

(1) Install refuel/defuel coupling cap 41QM.
(2) Install access panel 622HB (Ref. AMM TASK 57-41-37-400-006).
(3) Close access door 192MB.
(4) For left refuel valve 7QU, close access panel 522JB (Ref. AMM TASK 57-41-37-400-006).
(5) For right refuel valve 8QU, close access panel 622JB (Ref. AMM TASK 57-41-37-400-006).
(6) For center-tank refuel-valve 10QU, close the right MLG door 744 (Ref. AMM TASK 32-12-00-410-001).
(7) For ACT refuel-valve 41QU, close the left MLG door 734 (Ref. AMM TASK 32-12-00-410-001).

Subtask 28-25-00-410-067-H ** ON A/C NOT FOR ALL

B. Close Access
(1) Install coupling cap 101QM(41QM).

CAUTION: MAKE SURE THAT THE HANDLE OF THE REFUEL COUPLING CAP POINTS AFT WHEN THE CAP IS CLOSED AND LOCKED.

Subtask 28-25-00-860-062-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Disconnect these bonding/ground cables:

Between the aircraft and the fuel tanker/pump unit
If applicable, between the fuel tanker/pump unit and the ground
If applicable, between the aircraft and the ground.

(2) Write in the aircraft technical log to do a check of the fuel configuration.

NOTE: Fuel correction is automatic after the fuel pumps are set to on (the wing tank outer cells must be filled).

Subtask 28-25-00-860-062-B ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Disconnect these bonding/ground cables:

Between the aircraft and the fuel tanker/pump unit
If applicable, between the fuel tanker/pump unit and the ground
If applicable, between the aircraft and the ground.

(2) Write in the A/C technical log to do a check of the fuel configuration.

Subtask 28-25-00-942-076-A

D. Removal of the Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the SAFETY BARRIERS.
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:17:37 UTC