On the APU FIRE panel 20VU:
-
the SQUIB legend in the AGENTpushbutton switch stays on.
At the electrical connector 12WF-A ofthe APU fire extinguisher bottle:
-
the DC voltmeter reads zero.
At the electrical connector 12WF-A ofthe APU fire extinguisher bottle:
-
the DC voltmeter reads zero.
On the APU FIRE panel 20VU:
-
the SQUIB legend in the AGENTpushbutton switch goes off.
-put the guard of the APU FIRE pushbutton switch in the correct position.
NOTE : Make sure that the APU FIRE pushbutton switch is in its latched
____
position before you close the guard.
5. Close-up
________ Subtask 26-22-00-410-053
A. Close Access
(1)
Connect the electrical connector 12WF-A of the APU fire-extinguisher bottle and safety with corrosion-resistant steel lockwire 0.8 mm
(0.032 in.) dia.
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
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(3) Close the access door 314AR.
(4) Remove the access platform(s). Subtask 26-22-00-865-061
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 26-22-00-862-054
C. De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
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TASK 26-22-00-710-003
Operational Test of the Low-Pressure Indicating Circuit of the APU Fire-Extinguishing Bottle
WARNING : THE ACCIDENTAL FIRING OF THE EXTINGUISHER BOTTLE CAN CAUSE SERIOUS
_______ INJURY TO PERSONS WHO WORK OR ARE IN THE CLOSE PROXIMITY.
1. Reason for the Job
__________________
Refer to the MPD TASK: 262200-05
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 3/32 in. allen key
No specific 600 ohms headset
No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
23-51-00-710-001 Operational Test of the Audio Management 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
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3. Job Set-up
__________ Subtask 26-22-00-865-062
A. 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 26-22-00-010-053
B. Get Access
(1) Put the access platform below the access door 314AR.
(2) Open the access door 314AR. Subtask 26-22-00-860-054
C. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Energize the audio integrating system (Ref. TASK 23-51-00-710-001). NOTE : For this procedure we recommend that a minimum of two persons
____ are in contact with each other with the audio integrating system. One person must monitor the cockpit APU panel 20VU and the other person does the test in the zone 313.
(3)
On the CAPT jack panel, connect the 600 ohms headset to the related connector.
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4. Procedure
_________ Subtask 26-22-00-710-056
A. Test
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
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