(7)
Make sure that the LIGHT control switch 11LJ is set to the on position.
Subtask 49-31-41-865-054
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
4. Procedure
_________
(Ref. Fig. 201/TASK 49-31-41-991-002) Subtask 49-31-41-420-053
A. Installation of the Nozzles and Manifold
(1)
Remove all the blanking caps.
(2)
Install the gaskets (4) (4) on the nozzles (3).
(3)
Install the shield (5) and the nozzles (3) with the new gasket (4) in the combustor casing mount bosses (6).
(4)
Apply lubricant COMMON GREASE (Material No. 04-014) to the bolts (6).
(5)
Install the bolts (2) and secure the nozzles (3)
(6)
TORQUE the bolts (2) to between 0.57 and 0.63 m.daN (50.44 and 55.75 lbf.in)
(7)
Connect the manifold (1) to the nozzle connector (3).
(8)
TORQUE the manifold nuts (1) to between 1.07 and 1.19 m.daN (94.69 and 105.30 lbf.in).
(9)
Repeat steps (2) thru (8) at the remaing two pilot nozzles.
(10)
Install the clamps (7) with the bolts (8) and nuts (9).
(11)
Repeat step (10) at the remaing three clamp positions.
(12)
TORQUE the nuts (8) to between 0.57 and 0.63 m.daN (50.44 and 55.75 lbf.in)
(13)
Connect the manifold connector (10) to the fuel flow divider, torque tighten to the same value as in step (8).
Subtask 49-31-41-865-055
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD
Subtask 49-31-41-790-051
C. Leak Test.
(1)
Start and operate the APU for a minimum of five minutes (Ref. TASK 49-00-00-860-005).
(2)
Examine the fuel nozzles and manifolds for signs of fuel leaks. NOTE : No leaks are permitted.
____
(3)
Stop the APU (Ref. TASK 49-00-00-860-006).
5. Close-up
________ Subtask 49-31-41-410-052
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 49-31-41-860-052
B.
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
NOZZLE AND MANIFOLD - SECONDARY FUEL ((GTCP 36-300)) - MAINTENANCE PRACTICES
____________________________________________________________________________ R **ON A/C 001-003, 051-099, 401-499,
TASK 49-31-42-000-002 Removal of the Secondary Fuel Nozzle and Manifold (8021KM) (GTCP 36-300) 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 circuit breaker(s) safety clip(s)
No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 49-31-41-000-001 Removal of the Primary Fuel Nozzle and Manifold (8020KM) (GTCP 36-300) 52-41-00-010-001 Open the APU Doors for Access
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