540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, ....)
**ON A/C 001-001, 051-052,
28-25-46-991-001 Fig. 401
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Post SB 28-1077 For A/C 001-001,051-052,
28-25-46-991-001-A Fig. 401A
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
3. Job Set-up
__________
Subtask 28-25-46-941-053
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.
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-25-46Page 407 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
(2) Make sure that the safety barriers are in position.
Subtask 28-25-46-860-050
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 access panel 540HB (640HB).
(4)
Make sure that the applicable access panel 540HB, 640HB is removed (Ref. TASK 28-10-00-910-002), (Ref. TASK 28-12-46-000-001).
4. Procedure
_________
**ON A/C 001-001, 051-052,
(Ref. Fig. 401/TASK 28-25-46-991-001) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499, Post SB 28-1077 For A/C 001-001,051-052, (Ref. Fig. 401A/TASK 28-25-46-991-001-A) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-25-46-420-050
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)
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.
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Subtask 28-25-46-420-051
B. Installation of the Refuel Spill-Pipe Diffuser
(1)
Put the refuel spill-pipe diffuser (5) in position and attach it to the pipe support bracket with the bolts (1) and (2).
(2)
Install the washers (3) and the bolts (7) in the support brackets.
(3)
Install the bolts (6) and the nuts (4) in the bracket.
(4) Apply SEALANTS (Material No. 09-007) on and around the head of the bolts (6) and the nuts (4). R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Post SB 28-1077 For A/C 001-001,051-052,
Subtask 28-25-46-420-051-A
B. Installation of the Refuel Spill-Pipe Diffuser
(1) Put the refuel spill-pipe diffuser (5) in position and attach it to the pipe support bracket with the bolts (1) and (2).
NOTE : You must bond one of the bolts (7) (Ref. TASK 28-25-46-991-
____
001) (Ref. TASK 20-28-00-912-002).
(2)
Install the washers (3) and the bolts (7) in the support brackets.
(3)
Install the bolts (6) and the nuts (4) in the bracket.
(4)
Apply SEALANTS (Material No. 09-007) on and around the head of the bolts (6) and the nuts (4).
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-25-46Page 409 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
5. Close-up
________
Subtask 28-25-46-410-050
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Install the access panel 540HB, 640HB (Ref. TASK 57-27-11-400-002). Subtask 28-25-46-650-053
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