R Subtask 28-12-43-942-053
R C. Removal of Equipment
R (1) Remove the safety barriers.
R (2) Remove the access platform(s).
R (3) Remove the ground support and maintenance equipment, the special and
R standard tools and all other items.
_______________________________________________________________ REMOVAL/INSTALLATION
____________________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
TASK 28-12-44-000-001 Removal of the Check Valve 52QM (53QM) WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______
START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE. WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers
No specific access platform 3.6 m (11 ft. 10 in.)
1EFF : ALL 1 28-12-44Page 401 1 1 Aug 01/05 1 1 1CES 1
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 28-25-00-650-001 Pressure Defuel 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank
57-27-11-000-002 Removal of the Access Panel (540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, 640KB, ....)
28-12-44-991-001 Fig. 401
3. Job Set-up
__________ (Ref. Fig. 401/TASK 28-12-44-991-001) Subtask 28-12-44-941-061
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) Put the safety barriers in position. Subtask 28-12-44-860-053
B. Fuel Configuration
(1)
Defuel the applicable fuel tank (Ref. TASK 28-25-00-650-001).
(2)
Drain the remaining fuel from the applicable fuel tank (Ref. TASK 28-25-00-650-003).
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-12-44Page 402 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
Check Valve 50QM(51QM) 52QM(53QM) 120QM(121QM) 93QM
Figure 401/TASK 28-12-44-991-001
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-12-44Page 403 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 Subtask 28-12-44-010-058
C. Get Access
(1)
Put the access platform below the applicable access panel 540JB(640JB).
(2)
Remove the applicable access panel 540JB(640JB) (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-002).
4. Procedure
_________
(Ref. Fig. 401/TASK 28-12-44-991-001) Subtask 28-12-44-020-050
A. Removal of the Check Valve 52QM(53QM)
(1)
Loosen the clamp (2) and move it along the pipe (1) away from the check-valve (3).
(2)
Remove the check-valve (3) from the pipe (1) and remove the clamp (2).
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-12-44Page 404 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R Check Valve 50QM(51QM) 120QM(121QM) 93QM
R Figure 401A/TASK 28-12-44-991-001-A
R 1EFF : 301-399, 1 28-12-44 Page 405
1 1 May 01/04
1 1
1CES 1
TASK 28-12-44-400-002
Installation of the Check Valve 52QM (53QM)
WARNING : MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING
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