(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
(5)
Make sure that the access platform is in position below the APU compartment.
(6)
Make sure that the APU access doors 315AL and 316AR are open (Ref. TASK 52-41-00-010-001).
(7)
Make sure that the LIGHT SW 11LJ is set to the ON position.
(8)
Make sure that the igniter leads are grounded with an insulated device.
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(9)
Make sure that the LT connector (1) is disconnected. Subtask 49-41-41-865-061
B.
Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
4. Procedure
_________
(Ref. Fig. 401/TASK 49-41-41-991-007) Subtask 49-41-41-420-054
A. Installation of the Igniter Plug NOTE : There is only one igniter plug. It is installed in the combustion
____
casing at 220 degrees viewed from the rear.
(1)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(2)
Clean the component interface and/or the adjacent area.
(3)
Apply a thin layer of COMMON GREASE (Material No. 04-014) to the threads of the igniter plug (3).
(4)
Remove all blanking caps and put the gasket (4) in position on the igniter plug (3).
(5)
Install the igniter plug (3) and the gasket (4).
(6)
TORQUE the igniter plug (3) to 2.03 m.daN (14.97 lbf.ft).
(7)
Connect the ignition electrical lead (2) to the igniter plug (3).
(8)
TORQUE the ignition electrical lead (2) connection to 0.4 m.daN
(35.39 lbf.in).
(9)
Connect the electrical connector (1).
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(10) Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 49-41-41-865-062
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-41-41-710-052
C. Do the operational test of the APU (Ref. TASK 49-00-00-710-010).
5. Close-up
________ Subtask 49-41-41-410-054
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Make sure that the insulating device is removed.
(3)
Set the LIGHT SW 11LJ to the OFF position.
(4)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(5)
Remove the access platform(s). Subtask 49-41-41-860-060
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).
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PLUG - IGNITER - REMOVAL/INSTALLATION
_____________________________________ TASK 49-41-41-000-003 Removal of the Igniter Plug(s) (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 circuit breaker(s) safety clip(s) No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
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