(3)
For the APU fuel line between FR41 and FR42.
(a) Install the floor panel 241HL (Ref. TASK 53-32-12-400-002).
(4)
For the APU fuel line between FR42 and FR46.
(a)
Remove the ACCESS PLATFORM 1M (3 FT).
(b)
Close the LH main landing-gear door Z734 (Ref. TASK 32-12-00-410-001).
R 1EFF : 151-199, 301-399, 401-499, 1 28-22-47Page 421 1 1 Aug 01/05 1 1 1CES 1 1EFF : 301-399, 1 28-22-47Page 422 1 1 May 01/04 1 1 1CES 1 PUMP - APU FUEL (4QC) - REMOVAL/INSTALLATION
R (5) For the APU fuel line between FR46 and FR70.
R (a) Install the applicable access panels for the APU fuel line:
R - between the FR46 and FR47
R install 151BW
R - between the FR47 and FR47.4
R install 151RW
R - between the FR47.4 and FR49
R install 151CW
R - between the FR49 and FR52
R install 151DW
R - between the FR52 and FR55
R install 151EW
R - between the FR55 and FR58
R install 151HW
R - between the FR58 and FR59
R install 151JW
R - between the FR59 and FR62
R install 161AW
R - between the FR62 and FR63
R install 161BW
R - between the FR63 and FR65
R install 161CW
R - between the FR65 and FR70
R install 161DW (Ref. TASK 25-55-12-400-001)
R (6) For the APU fuel line between FR46 and FR70.
R (a) Close the AFT cargo-compartment door (Ref. TASK 52-30-00-860-
R 002).
R (7) For the APU fuel line aft of FR70.
R (a) Close the applicable access panels for the APU fuel line:
R - between the FR70 and FR77
R install 312AR
R - aft of FR77
R install 314AR
R (8) Remove the warning notice(s).
R (9) Remove the access platform(s).
R (10) Remove the ground support and maintenance equipment, the special and
R standard tools and all other items.
____________________________________________
TASK 28-22-51-000-001
Removal of the APU Fuel Pump (4QC)
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific extraction screws, thread size 10-32 UNF 3B
No specific screws, thread size 10-32 UNF 3B
R No specific container 1.0 l (0.2641 USgal) No specific access platform 2.0 m (6 ft. 7 in.)
R No specific 1 WARNING NOTICE
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-00-00-910-001 Fuel Safety Procedures
32-12-00-010-001 Open the Main Gear Doors for Access
28-22-51-991-001 Fig. 401
28-22-51-991-002 Fig. 402
28-22-51-991-003 Fig. 403
28-22-51-991-004 Fig. 404
1EFF : ALL 1 28-22-51Page 401 1 1 Aug 01/04 1 1 1CES 1
3. Job Set-up
__________
Subtask 28-22-51-941-050
A. Aircraft Maintenance Configuration
(1)
When you do maintenance work on the fuel system you must obey the fuel safety procedures (Ref. TASK 28-00-00-910-001).
(2)
On the APU section of the overhead panel 25VU, make sure that the APU MASTER SW is in the off position (the ON legend is off).
(3)
On the FUEL overhead panel 40VU, make sure that all L TK PUMPS and R TK PUMPS pushbutton switches are released (the OFF legends are on).
R (4) Put the WARNING NOTICE in position: - on the overhead panel 25VU, to tell persons not to operate the APU MASTER SW, - on the FUEL panel 40VU, to tell persons not to operate the fuel system, - on the APU FIRE panel 20VU, to tell persons not to operate the fire extinguishing system.
Subtask 28-22-51-865-050
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU APU/FUEL/BLOW OFF/PUMP 2QC B14 121VU APU/FUEL/BLOW OFF/CTL 1QC K39 121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41 121VU APU/FUEL/PUMP/CTL 3QC M38
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