Subtask 49-31-41-010-054
C. Get Access
(1)
Make sure that the access platform is in position below the APU compartment.
(2)
Make sure that the APU access doors 315AL and 316AR are open (Ref. TASK 52-41-00-010-001).
(3)
Make sure that the light SW 11LJ is set to the ON position.
4. Procedure
_________
(Ref. Fig. 201/TASK 49-31-41-991-001-A) Subtask 49-31-41-420-050-A
A. Install the Fuel Nozzles and Manifold.
NOTE : Make sure that the alignment hole in the nozzle shroud is
____ correctly aligned over the location pin on the fuel nozzle.
(1)
Apply COMMON GREASE (Material No. 04-014) to the bolt threads (6).
(2)
Install the seal (8), the shroud (7), the nozzle (5) and the bolts
(6) in the APU turbine housing.
(3)
TORQUE the bolts (6) to between 0.68 and 0.71 m.daN (60.17 and 62.83 lbf.in).
(4)
Safety the bolts (6) with lockwire-corrosion resistant steel 0.8mm (0.032in) dia.
(5)
Remove the blanking plugs from the manifold and fuel nozzles.
(6)
Install the manifold (8020KM) (3) and (8021KM) (4) to the fuel nozzle (5).
(7)
TORQUE the nuts to between 0.85 and 0.90 m.daN (75.22 and 79.64 lbf.in).
(8)
Install the fuel supply lines (1) and (2) to the fuel-flow divider and drain-valve assy (8023KM).
(9)
TORQUE the nuts to between 1.13 and 1.36 m.daN (99.99 and 120.35 lbf.in).
Subtask 49-31-41-865-051
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD
Subtask 49-31-41-790-050
C. Leak Test
(1)
Start and operate the APU for a minimum of five minutes (Ref. TASK 49-00-00-860-003).
(2)
Examine the fuel nozzles and manifolds for signs of fuel leakage. NOTE : No leaks are permitted.
____
________
5. Close-up
Subtask 49-31-41-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the LIGHT control switch 11LJ to the off position.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s).
(5)
Remove the warning notice(s). Subtask 49-31-41-860-055
B.
Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
NOZZLE - PRIMARY AND SECONDARY FUEL ((131-9(A))) - MAINTENANCE PRACTICES
________________________________________________________________________ TASK 49-31-41-000-003 Removal of the Primary and Secondary Fuel-Nozzle (131-9(A)) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
WARNING : MAKE SURE THAT YOU HAVE THE CORRECT FIRE FIGHTING EQUIPMENT
_______ AVAILABLE.
CAUTION : MAKE SURE THAT THE FUEL-FEED SYSTEM DOES NOT HAVE ANY LEAKS. LEAKS IN
_______ THE FUEL-FEED SYSTEM CAN CAUSE A FIRE.
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 plugs
No specific circuit breaker(s) safety clip(s)
No specific container 10 l (2.6416 USgal)
No specific access platform 3.5 m (11 ft. 6 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External
Power 28-00-00-910-001 Fuel Safety Procedures 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 52-41-00-010-001 Open the APU Doors for Access 49-31-41-991-003 Fig. 201
R EFF : 001-049, 101-105, 107-107, 151-199, 49-31-41Page 201 201-210, Config-2 Aug 01/05
CES 3. Job Set-up
__________ Subtask 49-31-41-860-056
A. Aircraft Maintenance Configuration
(1)
Energize the ground service network
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