Operational Test of the ACT Transfer-Thermal Relief-Valve

TASK 28-25-00-710-007-A
Operational Test of the ACT Transfer-Thermal Relief-Valve

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

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.

FIN: 169QM ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
192MB, 522KB, 622KB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-001-A	General Refuel/Defuel Safety Procedures
TASK 12-34-24-869-001-A	Aircraft Bonding and Grounding (Earthing) for the Refuel/Defuel or Oxygen Servicing Operations
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 28-25-41-000-001-A	Removal of the Refuel/Defuel Coupling/Cap
TASK 28-25-41-400-005-A	Installation of the Refuel/Defuel Coupling/Cap
TASK 28-46-00-710-001-A	Test of the Tank High-Level Sensing-System
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
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

3. Job Set-up
Subtask 28-25-00-941-091-A ** ON A/C NOT FOR ALL

A. Safety Precautions

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

(1) You must obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
(2) You must obey the safety fuel procedures when you refuel the aircraft (Ref. AMM TASK 12-11-28-650-001).
(3) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 28-25-00-010-095-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the MLG doors (Ref. AMM TASK 32-12-00-010-001).
(2) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable refuel/defuel coupling.
(3) Open the applicable refuel panel 192MB, 522KB and 622KB.

Subtask 28-25-00-860-090-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the fuel tanker is in the correct position.
(2) Make sure that the aircraft and the fuel tanker/pump unit are grounded (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.

(3) Remove the refuel coupling cap 101QM(41QM) (Ref. AMM TASK 28-25-41-000-001).
(4) Make sure that the coupling of the fuel supply hose is clean.
(5) Connect the fuel supply hose to the aircraft.
(6) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(7) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
(8) On the ECAM control panel, push the FUEL P/BSW.
(a) On the lower ECAM DU, the FUEL page comes into view.
(b) Make sure that a maximum of 100 +100 kg or -0 kg (220 +220 lb or +0 lb) fuel is in the ACT.
(c) Make sure that the fuel quantity in the center tank is 5000 +200 kg or -800 kg (11023 +441 lb or -1764 lb).
(9) Do the test of the high level sensing system (Ref. AMM TASK 28-46-00-710-001).

Subtask 28-25-00-865-065-A ** ON A/C NOT FOR ALL

D. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	ACT1/REFUEL & SPLY	33QU	L29
121VU	FUEL/HI/LVL/SPLY	1QJ	L25
121VU	FUEL/RFL/DFL/SPLY	2QU	L24
121VU	FUEL/RFL/DFL/XFR/DEFUEL/VALVE	1QU	L23
121VU	ACT LOW LVL R	51QJ	M29
121VU	ACT LOW LVL L	52QJ	M28
121VU	ACT XFR VALVE MAN CTL	30QH	N29
121VU	ACT1/CTL & SPLY	9QH	P29
121VU	ACT PUMP SUPPLY	25QH	Q29

4. Procedure
Subtask 28-25-00-710-087-A ** ON A/C NOT FOR ALL

A. Operational Test of the ACT Transfer-Thermal Relief-Valve (169QM)
(1) On the refuel/defuel control panel 800VU:

put the MODE SELECT switch to the OFF position.

(2) On the refuel/defuel control panel 801VU:

put the applicable ACT REFUEL VALVE switch to the OPEN position
put all other REFUEL VALVES switches to the SHUT position.

(3) Start the pump on the fuel tanker/pump unit.

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.

(4) On the fuel tanker/ pump unit, on the pressure gage, monitor the pressure of fuel supplied. When the pressure is between 40 psi (2.8 bar) and 45 psi (3.1 bar):

in the center tank, make sure that you can see spray of fuel from the ACT transfer-thermal relief-valve (169QM).

(5) Stop the pump on the fuel tanker/pump unit.
(6) On the refuel/defuel control panel 801VU put all the REFUEL VALVES switches to the NORM and guarded position.

5. Close-up
Subtask 28-25-00-860-091-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the refuel hose from the refuel coupling.
(3) Install the refuel coupling cap 101QM(41QM) (Ref. AMM TASK 28-25-41-400-005).
(4) Remove the refuel tanker/pump unit.
(5) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(6) On the ECAM control panel:

Set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.

(7) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

Subtask 28-25-00-410-090-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the refuel/defuel panel doors 192MB, 522KB and 622KB.
(2) Remove the access platform(s).
(3) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).

Subtask 28-25-00-942-087-A ** ON A/C NOT FOR ALL

C. Removal of Equipment
(1) Remove the safety barrier(s).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:17:38 UTC