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R  (13) Remove the blanking caps from the electrical connectors. 
R R  (14) Make sure that the electrical connectors are clean and in the correct condition. 
R  (15) Connect the electrical connector (4). 
R  **ON A/C ALL
 Subtask 21-26-51-710-051
 B. Do an operational test of the ventilation system of the avionics equipment (Ref. TASK 21-26-00-710-001).
 NOTE : As an alternative procedure, you can do this operational test____ without the CFDS (Ref. TASK 21-26-51-710-001).
 5. Close-up________
 Subtask 21-26-51-410-050
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 (2) Close the access door 824 (Ref. TASK 52-41-00-410-002).
 (3) Remove the access platform(s).
 Subtask 21-26-51-865-052
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): FOR 18HQ 2HQ, 6HQ FOR 20HQ 1HQ, 5HQ

 

 Subtask 21-26-51-862-051
 C. De-energize the ground service network (Ref. TASK 24-42-00-862-001).

 FANS - BLOWER AND EXTRACT (18HQ,20HQ) - ADJUSTMENT/TEST
_______________________________________________________
 TASK 21-26-51-710-001
 Operational Test of the Blower and Extract Fans (18HQ, 20HQ) (without the CFDS)
 1. Reason for the Job
__________________
 To do the test after the removal/installation of the blower fan or the
 extract fan if the CFDS is unserviceable.
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
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
 31-60-00-860-001 EIS Start Procedure
 31-60-00-860-002 EIS Stop Procedure

 3. Job Set-up
__________
 Subtask 21-26-51-865-053

 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR COND/AVNCS VENT/CTL 6HQ D06 49VU AIR COND/AVNCS VENT/CTL 5HQ D05 122VU AIR COND/AVNCS/VENT/MONG 3HQ Y17

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 123VU AVNCS VENT/EXTC/FAN  2HQ AE02

R  -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**ON A/C ALL 
R  123VU AVNCS VENT/BLOWER/FAN  1HQ  AD10 
R  **ON A/C 301-399, 
R  123VU AVNCS VENT/EXTC/FAN  2HQ  AC04 
R  **ON A/C ALL
 Subtask 21-26-51-869-052
 B. Make sure that the throttle control levers of the engines 1 and 2 are at idle.
 Subtask 21-26-51-861-052
 C. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
 Subtask 21-26-51-860-051
 D. Aircraft Maintenance Configuration
 (1) On the VENTILATION section of the panel 22VU: - make sure that the BLOWER and EXTRACT pushbutton switches are in the AUTO configuration (pushed with the FAULT and OVRD legends off).
 (2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).

 

 4. Procedure
_________ Subtask 21-26-51-710-050
 A. Operational Test of the Blower and Extract Fans (18HQ, 20HQ)
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the circuit breaker panel 122VU:  On the VENTILATION section of the panel22VU:
 - open the circuit breaker 3HQ.  - the FAULT legends of the BLOWER and EXTRACT pushbutton switches come on. On the upper ECAM DU: - the AVNCS SYS FAULT indication comes
 into view after approximately 10 seconds.
 2. On the circuit breaker panel 122VU:  On the VENTILATION section of the panel22VU:
 - close the circuit breaker 3HQ.  - the FAULT legends of the BLOWER and EXTRACT pushbutton switches go off after 10 seconds.
 On the upper ECAM DU: - the AVNCS SYS FAULT indication goes out of view.
 5. Close-up________
 Subtask 21-26-51-860-052
　
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