4. Procedure
_________
(Ref. Fig. 403/TASK 28-12-41-991-005) Subtask 28-12-41-420-055
A. Preparation for Installation
(1)
Clean the component interface and /or the adjacent area with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Make sure that the parts retained from the removed component are clean and in the correct condition.
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.
(4) Lubricate the new O-ring (3) with FUELS (Material No. 01-001). Subtask 28-12-41-420-052
B. Installation of the Overpressure Protector 96QM
(1)
Install the new O-ring (3) on the overpressure protector (4).
(2)
Put the overpressure protector (4) in position. Engage the location dowel in the dowel hole (2).
(3)
Install and tighten the bolts (1).
(4)
Do a bonding check between the overpressure protector and RIB 1 (Ref. TASK 20-28-00-912-002). The bonding resistance must be less than 10 milliohms.
(5)
Apply SEALANTS (Material No. 09-007) over the ends of the bolts (1).
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5. Close-up
________
Subtask 28-12-41-410-056
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the HOOK-COVER (RIB2-SURGE DOORS) and carefully close the surge door 540BZ.
(3)
Install the wing access panel 540AB, (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-400-001).
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-12-41-790-052
B. Leak Test of the Overpressure Protector - Installation
(1)
Fully refuel the LH wing tank (Ref. TASK 12-11-28-650-005).
(2)
In the center tank at the overpressure protector/Rib 1 interface, inspect for signs of leaks. No leaks permitted.
**ON A/C 301-399,
Subtask 28-12-41-790-052-A
B. Leak Test of the Overpressure Protector - Installation
(1)
Fully refuel the LH wing tank (Ref. TASK 12-11-28-650-005).
(2)
In the center tank at the overpressure protector/Rib 1 interface, inspect for signs of leaks. No leaks permitted.
NOTE : A small fuel leak at the pick-up for the jet pump is
____
permitted.
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R **ON A/C ALL
Subtask 28-12-41-860-056
C. Preparation to Continue the Test
(1)
Install the access panel 147AZ (Ref. TASK 28-10-00-910-002) (Ref. TASK 57-17-11-400-001).
(2)
Make sure that the center tank and the RH wing tank are empty of fuel. If necessary, defuel the tank(s) (Ref. TASK 28-25-00-650-001).
NOTE : The LH wing tank stays full of fuel.
____
(3)
In the flight compartment on the panel 40VU, make sure that these pushbutton switches (P/BSW's) are set as follows:
-CTR TK MODE SEL released out (MAN)
-L TK PUMPS 1 and 2 released out (OFF)
-R TK PUMPS 1 and 2 released out (OFF)
-CTR TK PUMPS 1 and 2 released out (OFF)
-X-FEED released out (lights off).
(4)
Open the access panel 192MB.
(5) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM FUEL 燃油2(3)
