(b)
Remove the bonding strap (5) from the mounting stud.
(c)
Remove the adaptor (7) from the mounting studs.
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R R APU Fuel LP Valve Actuator 3QF Figure 401/TASK 28-29-51-991-001- 12 (SHEET 1)
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R R APU Fuel LP Valve Actuator 3QF Figure 401/TASK 28-29-51-991-001- 22 (SHEET 2)
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TASK 28-29-51-400-001
Installation of the APU Fuel LP Valve Actuator (3QF)
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 access platform 2.0 m (6 ft. 7 in.)
No specific 1 WARNING NOTICE
R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft)
R
B. Expendable Parts
-------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
-------------------------------------------------------------------------------
6 o-ring 28-29-51 01 -020 6 o-ring 28-29-51 01A-020
C. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
20-28-00-912-004 Electrical Bonding of Components With Conductive Bolts and Screws and Bonding Straps in the Fuselage and in the Wings (this does not include the tanks)-
28-00-00-910-001 Fuel Safety Procedures 28-29-00-710-001 Operational Test of the APU Low Pressure Fuel Valve
using each individual Motor in turn
32-12-00-010-001 Open the Main Gear Doors for Access
32-12-00-410-001 Close the Main Gear Doors after Access
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28-29-51-991-001 Fig. 401
3. Job Set-up
__________
Subtask 28-29-51-860-051
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).
(4)
Make sure that the WARNING NOTICE is 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.
(5)
Make sure that the LH MLG door is open (Ref. TASK 32-12-00-010-001)
(6)
Make sure that the access platform is in position at the MLG door.
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Subtask 28-29-51-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------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/LP VALVE/CTL 1QF M40 121VU APU/FUEL/LP VALVE/SPLY 2QF M39 121VU APU/FUEL/PUMP/CTL 3QC M38
4. Procedure
_________
R (Ref. Fig. 401/TASK 28-29-51-991-001)
Subtask 28-29-51-420-051
A. Installation of the LP Valve Actuator
NOTE : The Actuator P/N: B27000 and the Actuator P/N: A08000 together
____ with the Adaptor P/N: A08900 are 2 way interchangeable.
(1) Actuator (P/N: B27000)
(a)
Make sure that the parts retained from the removed component are clean and in the correct condition.
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