Installation of the Transfer Valve Drive

TASK 28-15-42-400-002-A
Installation of the Transfer Valve Drive

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN: 71QM ** ON A/C NOT FOR ALL
FIN: 73QM ** ON A/C NOT FOR ALL

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

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 3M (10 FT)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.01ABA1)	Turbine Fuel-- Kerosene -
(Material No.03GEE1)	Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [71QM] (DRIVE SHAFT-TRANSFER VALVE, L REAR SPAR)
540JB, 540KB
FOR [73QM] (DRIVE SHAFT-TRANSFER VALVE, R REAR SPAR)
640JB, 640KB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
9	O-RING	AIPC 28-15-05-01-090
2	O-RINGS	AIPC 28-15-42-02-020
10	O-RINGS	AIPC 28-15-42-02-030
9	O-RING	AIPC 28-15-85-01-090

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-003-A	Pressure Refuel with Automatic Control
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 27-50-00-866-008-A	Extension of the Flaps on the Ground
TASK 27-50-00-866-008-A-01	Extension of the Flaps/Slats on the Ground
TASK 27-50-00-866-009-A	Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01	Retraction of the Flaps/Slats on the Ground
TASK 27-60-00-866-002-A	Extension-Retraction of the Spoilers for Maintenance
TASK 28-10-00-910-001-A	Safety Procedures When You Do Work in a Fuel Tank
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 28-15-00-740-002-A	Functional (BITE) Test of the Intercell Transfer Valves
TASK 28-15-41-400-001-A	Installation of the Transfer Valve
TASK 28-15-51-400-002-A	Installation of the Actuator
TASK 28-25-00-650-001-A	Pressure Defuel
TASK 28-25-00-650-003-A	To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-650-003-A-01	To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-869-001-A	Fuel Transfer
TASK 57-27-11-000-002-A	Removal of the Access Panel
TASK 57-27-11-400-002-A	Installation of the Access Panel
Transfer Valve Drive

3. Job Set-up
Subtask 28-15-42-941-058-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) You must obey the fuel safety procedures (Ref. AMM TASK 28-10-00-910-001) when you do work in a fuel tank.
(2) Make sure that the SAFETY BARRIER(S) are in position.
(3) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the flight controls.

Subtask 28-15-42-865-054-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FUEL/XFR VALVE1/WING/R	2QP	A11
49VU	FUEL/XFR VALVE1/WING/L	1QP	A10
121VU	FUEL/XFR VALVE2/WING/R	4QP	M23
121VU	FUEL/XFR VALVE2/WING/L	3QP	M22

Subtask 28-15-42-860-051-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Make sure that the flaps are fully extended (Ref. AMM TASK 27-50-00-866-008) and that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the slat/flap control lever.
(2) Make sure that the applicable No. 3 spoiler is extended (Ref. AMM TASK 27-60-00-866-002).
(3) Make sure that the 98D27604000000 COLLAR-SAFETY, SPOILER or 98D27604004000 COLLAR SAFETY SPOILER is on the applicable spoiler servo-control.
(4) Make sure that the applicable fuel tank is defueled (Ref. AMM TASK 28-25-00-650-001).
(5) Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
(6) Make sure that the ACCESS PLATFORM 3M (10 FT) is below the applicable zone 540(640).
(7) Make sure that the applicable access panels are removed (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-000-002):
(a) FOR [71QM] (DRIVE SHAFT-TRANSFER VALVE, L REAR SPAR)
remove 540JB and 540KB
(b) FOR [73QM] (DRIVE SHAFT-TRANSFER VALVE, R REAR SPAR)
remove 640JB and 640KB.

4. Procedure
Subtask 28-15-42-420-055-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Clean the component interfaces and/or the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply a thin layer of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the AIPC 28-15-42-02-020 O-RINGS (2).
(5) Apply Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the AIPC 28-15-42-02-030 O-RINGS (10).
(6) Apply Turbine Fuel-- Kerosene - (Material No.01ABA1) to the AIPC 28-15-05-01-090 O-RING (9) or AIPC 28-15-85-01-090 O-RING (9).
(7) Apply a thin layer of Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the internal bearing surface of the actuator mounting (3).

Subtask 28-15-42-420-052-A ** ON A/C NOT FOR ALL

B. Installation of the Transfer Valve Drive 71QM(73QM)
(1) Install the new O-ring seals (9) and (10), on the transfer valve drive (12).
(2) Install the new O-ring seals (2), on the actuator mounting (3).
(3) Put the transfer valve drive (12) in position and install the bolts (11).
(4) Install the bonding strap (6), the screw (7) and the nut (4) on the actuator mounting (3) (Ref. AMM TASK 20-28-00-912-802).
(5) Put the actuator mounting (3) in position and install the nuts (5).

NOTE: The actuator mounting (3) will only fit in one position.

(6) Install the transfer valve actuator (8) (Ref. AMM TASK 28-15-51-400-002).
(7) Install the transfer valve (1) (Ref. AMM TASK 28-15-41-400-001).

Subtask 28-15-42-410-051-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable wing access panels (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-400-002):

(a) FOR [71QM] (DRIVE SHAFT-TRANSFER VALVE, L REAR SPAR)
install 540JB 540KB
(b) FOR [73QM] (DRIVE SHAFT-TRANSFER VALVE, R REAR SPAR)
install 640JB 640KB.

Subtask 28-15-42-865-055-A ** ON A/C NOT FOR ALL

D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FUEL/XFR VALVE1/WING/R	2QP	A11
49VU	FUEL/XFR VALVE1/WING/L	1QP	A10
121VU	FUEL/XFR VALVE2/WING/R	4QP	M23
121VU	FUEL/XFR VALVE2/WING/L	3QP	M22

Subtask 28-15-42-710-051-A ** ON A/C NOT FOR ALL

E. Operational Test
(1) Do a BITE of the intercell transfer valves (Ref. AMM TASK 28-15-00-740-002).

5. Close-up
Subtask 28-15-42-860-053-A ** ON A/C NOT FOR ALL

A. Aircraft Configuration

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Fully retract the applicable No. 3 spoiler (Ref. AMM TASK 27-60-00-866-002).
(2) On the spoiler servo-control, make sure that the pointer on the hex. head is opposite the letter 'O' on the housing.
(3) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).

Subtask 28-15-42-650-053-A ** ON A/C NOT FOR ALL

B. Fuel Configuration
(1) Refuel, defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

Subtask 28-15-42-942-053-A ** ON A/C NOT FOR ALL

C. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the WARNING NOTICE(S).
(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 06:17:15 UTC