Installation of the Transfer Valve Drive

TASK 28-15-42-400-001-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: 70QM ** ON A/C NOT FOR ALL
FIN: 72QM ** 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 3M (10 FT)
No specific	AR	SAFETY BARRIER(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 [70QM] (DRIVE SHAFT-TRANSFER VALVE, L FWD SPAR)
522KB
FOR [72QM] (DRIVE SHAFT-TRANSFER VALVE, R FWD SPAR)
622KB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
9	O-RING	AIPC 28-15-05-01-090
2	O-RINGS	AIPC 28-15-42-01-020
10	O-RINGS	AIPC 28-15-42-01-030
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 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 28-15-51-400-001-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 28-15-42-941-057-A ** ON A/C NOT FOR ALL

A. Safety Precautions

WARNING: BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.

(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.

Subtask 28-15-42-865-052-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 28-15-42-860-050-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the applicable fuel tank is defueled (Ref. AMM TASK 28-25-00-650-001).
(2) Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT) is below the applicable zone 540(640), 522(622).
(4) Make sure that the applicable leading edge access panel 522KB(622KB) is removed.
(5) 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 [70QM] (DRIVE SHAFT-TRANSFER VALVE, L FWD SPAR)
540JB and 540KB
(b) FOR [72QM] (DRIVE SHAFT-TRANSFER VALVE, R FWD SPAR)
640JB and 640KB

4. Procedure
Subtask 28-15-42-420-054-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 28-15-42-01-020 O-RINGS (2).
(5) Apply Synthetic Oil base Grease-Fuel and Oxidized Environment Fluorinated - (Material No.03GEE1) to the AIPC 28-15-42-01-030 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 28-15-42-420-050-A ** ON A/C NOT FOR ALL

B. Installation of the Transfer Valve Drive 70QM(72QM)
(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) to 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 28-15-51-400-001).
(7) Install the transfer valve (1) (Ref. AMM TASK 28-15-41-400-001).

Subtask 28-15-42-410-050-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 leading-edge access-panels:
(a) FOR [70QM] (DRIVE SHAFT-TRANSFER VALVE, L FWD SPAR)
install 522KB
(b) FOR [72QM] (DRIVE SHAFT-TRANSFER VALVE, R FWD SPAR)
install 622KB.
(3) Install the applicable wing access-panels (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-400-002):
(a) FOR [70QM] (DRIVE SHAFT-TRANSFER VALVE, L FWD SPAR)
install 540JB and 540KB
(b) FOR [72QM] (DRIVE SHAFT-TRANSFER VALVE, R FWD SPAR)
install 640JB and 640KB.

Subtask 28-15-42-865-053-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 28-15-42-710-050-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 28-15-42-650-051-A ** ON A/C NOT FOR ALL

A. 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 28-15-42-942-051-A ** ON A/C NOT FOR ALL

B. 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