C. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
O-ring 28-21-05 28A-450
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 20-28-00-912-002 Electrical Bonding of Components With Conductive
Bolts and Screws in the Tanks 28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas 28-21-00-710-006 Operational Test of the Fuel Flow through the Fuel
Pumps with Gravity Feed 28-25-00-650-001 Pressure Defuel 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank 28-25-00-869-001 Fuel Transfer 57-27-11-000-001 Removal of the Access Panel (540AB, 540BB, 540CB,
540DB, 540EB, 540FB, 540GB, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB)
57-27-11-400-001 Installation of the Access Panel (540AB, 540BB, 540CB, 540DB, 540EB, 540FB, 540GB, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB)
**ON A/C 001-049, 051-061, 101-103, 201-203,
28-21-42-991-001 Fig. 401
**ON A/C 301-399,
28-21-42-991-001-B Fig. 401A
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Post SB 28-1077 For A/C 001-049,051-061,101-103,201-203,
28-21-42-991-001-A Fig. 401B
1EFF : ALL 1 28-21-42Page 409 1 1 Aug 01/05 1 1 1CES 1 **ON A/C ALL
3. Job Set-up
__________
Subtask 28-21-42-941-054
A. Safety Precautions WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1) You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
(2) Make sure that the safety barriers are in position.
Subtask 28-21-42-860-050
B. Aircraft Maintenance Configuration
(1)
Make sure that the applicable fuel tank is defueled (Ref. TASK 28-25-00-650-001).
(2)
Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. TASK 28-25-00-650-003).
(3)
Make sure that the access platform is below the applicable zone 540(640).
(4)
Make sure that the applicable access panel 540AB(640AB) is removed (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-001).
(5)
Make sure that the applicable surge door 540BZ(640BZ) is open and that the HOOK-COVER (RIB2-SURGE DOORS) (98D57004014000) is installed.
4. Procedure
_________ R **ON A/C 001-049, 051-061, 101-103, 201-203,
(Ref. Fig. 401/TASK 28-21-42-991-001)
**ON A/C 301-399,
(Ref. Fig. 401A/TASK 28-21-42-991-001-B)
1EFF : ALL 1 28-21-42Page 410 1 1 May 01/05 1 1 1CES 1
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499, Post SB 28-1077 For A/C 001-049,051-061,101-103,201-203, (Ref. Fig. 401B/TASK 28-21-42-991-001-A) **ON A/C ALL
Subtask 28-21-42-420-050
A. Preparation for Installation
(1)
Clean the component interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).
(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 FUELS (Material No. 01-001) or COMMON GREASE (Material No. 04-012) to the new O-ring (4).
Subtask 28-21-42-420-051
B. Installation of the Fuel-Pump Suction Valve
(1)
Install the O-ring (4) on the fuel pipe (6).
(2)
Install the fuel-pump suction valve (3) on the fuel pipe (6).
(3)
Put the bonding tab (9) in position on the suction valve (3).
(4)
Install the bolts (1) and (2) in their correct positions.
(5)
Install the nuts (8).
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