Subtask 28-15-51-865-055
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------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
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 C. Aircraft Maintenance Configuration
 (1)
 Make sure that the flaps are fully extended (Ref. TASK 27-50-00-866-008).

 (2)
 Make sure that the LOCKING TOOL - FLAP/SLAT CONTROL LEVER is on the flap/slat control lever.

 (3)
 Make sure that the No. 3 spoiler is extended (Ref. TASK 27-60-00-866-002).

 (4)
 Make sure that the COLLAR-SAFETY, SPOILER (98D27604000000) is on the applicable spoiler servo-control.

 (5)
 Make sure the access platform is below zone 575(675).

 4. Procedure
_________
 (Ref. Fig. 401/TASK 28-15-51-991-001)
 CAUTION : BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING
_______
 EDGE:

 -
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.

 -
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.

 -MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
 Subtask 28-15-51-420-054
 A. Preparation for Installation
 WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
 (1) Clean the component interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-004).
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 (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 interface and/or the adjacent area.

 (4)
 Apply COMMON GREASE (Material No. 04-023) to the new O-ring (6). Subtask 28-15-51-420-051

 B. Installation of Actuator 11QP(12QP)
 (1)
 Make sure the transfer-valve drive-slot moves freely.

 (2)
 Align the transfer-valve drive-slot with the transfer valve actuator (5).

 (3)
 Install the new O-ring (6) on the transfer valve drive (1).

 (4)
 Carefully install the transfer valve actuator (5) and the clamp (3). NOTE : Make sure that the mating surfaces of the actuator (5) and the

____ transfer valve drive (1) engage correctly before you install the clamp (3).

 (5)
 Install the bolt (2).

 (6)
 TORQUE the bolt (2) to between 0.102 and 0.113 m.daN (9.02 and 9.99 lbf.in).

 (7)
 Remove the blanking caps and install the electrical connector (4). Subtask 28-15-51-865-056

 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1QP, 2QP, 3QP, 4QP.
 Subtask 28-15-51-710-051
 D. Operational Test
 (1) Do a BITE of the intercell transfer valves (Ref. TASK 28-15-00-740-002).
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 5. Close-up
________ Subtask 28-15-51-860-053
 A. Aircraft Configuration
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Retract the Spoiler No. 3 (Ref. TASK 27-60-00-866-002).

 (3)
 On the spoiler servo-control, make sure that the pointer on the hex. head is opposite the letter 'O' on the housing.

 (4) Retract the flaps fully (Ref. TASK 27-50-00-866-009). Subtask 28-15-51-942-053
 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.

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