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.
(3)
Make sure that the warning notice is in position to tell persons not to operate the landing gear doors.
Subtask 28-26-42-860-050
B. Aircraft Maintenance Configuration
(1)
Make sure that the center tank is defueled (Ref. TASK 28-25-00-650-001).
(2)
Make sure that the remaining fuel has been drained from the center tank (Ref. TASK 28-25-00-650-003).
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(3)
Make sure that the applicable MLG door is open (Ref. TASK 32-12-00-010-001).
(4)
Make sure that the GROUND LOCK SLEEVE is installed on the applicable MLG door actuating-cylinder.
(5)
Make sure that the access platform is below the applicable access panel 147AZ (148AZ).
(6)
Make sure that the applicable access panel 147AZ (148AZ) is removed (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001).
Subtask 28-26-42-865-050
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU FUEL/CTR TK/AUTO/CTL 3QL R27 121VU FUEL/CTR TK/L&R XFR/CTL & IND 2QL R26 121VU FUEL/CTR TK/L&R XFR/CTL & IND 1QL R25
4. Procedure
_________
(Ref. Fig. 401/TASK 28-26-42-991-001) Subtask 28-26-42-420-051
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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B. Installation of the Jet Pump Strainer 220QM (221QM)
(1)
Put the strainer (2) in the platinum assembly (3).
(2)
Install the jet pump (1) (Ref. TASK 28-26-41-400-001).
5. Close-up
________ Subtask 28-26-42-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the applicable access panels 147AZ (148AZ) (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-400-001).
(3)
Remove the access platform(s).
(4) Close the applicable MLG door (Ref. TASK 32-12-00-410-001). Subtask 28-26-42-650-051
B. Fuel Configuration
(1) Refuel, defuel or transfer fuel as necessary (Ref. TASK 12-11-28-650-003), (Ref. TASK 28-25-00-650-001) or (Ref. TASK 28-25-00-869-001).
Subtask 28-26-42-942-050
C. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Remove the warning notice(s).
(3)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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TASK 28-26-43-000-001
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