Subtask 21-26-41-860-051
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).
Subtask 21-26-41-865-054
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------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 **ON A/C ALL
123VU AVNCS VENT/BLOWER/FAN 1HQ AD10 **ON A/C 301-399,
123VU AVNCS VENT/EXTC/FAN 2HQ AC04 **ON A/C ALL
Subtask 21-26-41-010-053
C. Get Access
(1)
Make sure that the access platform is in position at the access door
824.
(2)
Make sure that the access door 824 is open.
4. Procedure
_________
(Ref. Fig. 402/TASK 21-26-41-991-002) R **ON A/C 001-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
Subtask 21-26-41-420-053
A. Installation of the Air Extraction Duct
(1)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(2)
Remove the blanking plugs from the disconnected line ends.
(3)
Install the flexible sleeve (7) on the fan (8). NOTE : Make sure that the arrow which indicates the air flow points
____
down.
(4)
Install the duct (15) in the flexible sleeve (7).
(5)
Put the flexible sleeve (7) in position.
(6)
Install the clamps (6). Do not fully tighten at this time. NOTE : Use the clamps (6) kept during the removal procedure.
____
(7)
Install the flexible sleeves (3), (14) and (11) on the ducts (1),
(12) and (9).
(8)
Put the flexible sleeves (3), (14) and (11) in position on the duct (15).
(9)
Install the clamps (2), (10) and (13) and tighten them. NOTE : Use the clamps (2), (10) and (13) kept during the removal
____
procedure.
(10)
Tighten the clamps (6).
(11)
Install the avionics compartment smoke detector (4), if removed (Ref. TASK 26-15-15-400-001).
(12)
Remove the blanking caps from the electrical connectors.
(13) Make sure that the electrical connectors are clean and in the correct
condition.
(14) Connect the electrical connector (5).
R **ON A/C 051-052,
R Subtask 21-26-41-420-053-A
R A. Installation of the Air Extraction Duct
R (1) Make sure that the parts retained from the removed component are
R clean and in the correct condition.
R (2) Remove the blanking plugs from the disconnected line ends.
R (3) Install the flexible sleeve (7) on the fan (8).
R NOTE : Make sure that the arrow which indicates the air flow points____
R down.
R (4) Install the duct (15) in the flexible sleeve (7).
R (5) Put the flexible sleeve (7) in position.
R (6) Install the clamps (6). Do not fully tighten at this time.
R (7) Install the flexible sleeves (3), (14) and (11) on the ducts (1),
R (12) and (9).
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