(2)
Examine the fuel nozzles and manifolds for signs of fuel leakage. NOTE : No leaks are permitted.
____
________
5. Close-up
Subtask 49-31-41-410-053
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 SW 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). Subtask 49-31-41-860-058
B.
Aircraft Maintenance Configuration
(1)
Pressurize the reservoirs of the hydraulic systems.
(Ref. TASK 29-14-00-614-002).
(2)
De-energize the ground service network
(Ref. TASK 24-42-00-862-001).
(3)
Remove the warning notice(s).
R EFF : 001-049, 101-105, 107-107, 151-199, 49-31-41Page 210 201-210, Config-2 Aug 01/05
CES
NOZZLE AND MANIFOLD - PRIMARY FUEL ((APS 3200)) - MAINTENANCE PRACTICES
_______________________________________________________________________ TASK 49-31-41-000-002 Removal of the Pilot Fuel Nozzles and Manifold (APS 3200) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
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 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 52-41-00-010-001 Open the APU Doors for Access 49-31-41-991-002 Fig. 201
3. Job Set-up
__________ Subtask 49-31-41-860-050
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Put a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-31-41-865-052
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
Subtask 49-31-41-010-052
C. Put the access platform below the APU access doors 315AL and 316AR.
(1)
Open the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).
(2)
Set the LIGHT control switch 11LJ to the on position.
4. Procedure
_________ Subtask 49-31-41-020-052
A. Removal of Nozzles and Manifold.
(Ref. Fig. 201/TASK 49-31-41-991-002)
(1)
Remove the bolt (8) and the nut (9) from the clamp (7).
(2)
Repeat step (1) at the three remaining clamp positions.
(3)
Put the container below the fuel manifold assembly.
(4)
Disconnect the fuel manifold connector (1) at the nozzle (3).
(5)
Repeat step (3) at the two remaining pilot nozzle positions.
(6)
Disconnect the manifold connector (10) at the fuel flow divider and remove the manifold assembly.
(7)
Remove the bolts (2) from the nozzle assembly (3).
(8)
Remove the nozzles (3), the gasket (4) and the shield (5) from the mount boss (6).
(9)
Discard the gasket (4).
Pilot Fuel Nozzles and Manifold
Figure 201/TASK 49-31-41-991-002
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