TASK 21-51-11-000-001-A Removal of the Differential Pressure Sensor 23HB2 (24HB2) WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM
_______
FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE.
HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific circuit breaker(s) safety clip(s)
B. Referenced Information
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REFERENCE DESIGNATION
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24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 53-35-13-000-002 Removal of the Quick-Release Access Panels from the Belly Fairing Structure
R **ON A/C 401-499,
21-51-11-991-002 Fig. 402
R 1EFF : 106-149, 303-399, 401-499, 1 21-51-11Page 418 1 1 Aug 01/05 1 1 1CES 1
R **ON A/C 106-149, 303-399, 401-499,
3. Job Set-up__________
Subtask 21-51-11-861-051
A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
Subtask 21-51-11-865-053
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 23HB2
R **ON A/C 401-499,
R 49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC 52HH 49HH 51HH 50HH D08 X22X21Y18
R **ON A/C 106-149, 303-399, 401-499,
FOR 24HB2
R **ON A/C 401-499,
R R 122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC 53HH 55HH 56HH 54HH W22W21 Y21Y20
R 1EFF : 106-149, 303-399, 401-499, 1 21-51-11Page 419 1 1 Aug 01/05 1 1 1CES 1R **ON A/C 106-149, 303-399, 401-499,
Subtask 21-51-11-010-051
C. Get Access
(1) Remove the access panel (Ref. TASK 53-35-13-000-002): FOR 23HB2 191BB, FOR 24HB2 192FB.
4. Procedure
_________ R **ON A/C 401-499,
(Ref. Fig. 402/TASK 21-51-11-991-002) R **ON A/C 106-149, 303-399, 401-499,
Subtask 21-51-11-020-053
A. Removal of the Pressure Sensor
(1)
Remove the screws (7), the washers (8) and the clamp (9).
(2)
Discard the washers (8).
(3)
Loosen and partially remove the screws (1).
(4)
Push the screws (1) to disconnect the sensor (5) from the sensor mount (13).
(5)
Remove the screws (1) and the washers (2). NOTE : Make sure that the inserts (3) stay in the sensor mount (13).
____
(6)
Disconnect the electrical connector (6) and remove the sensor (5).
(7)
Remove and discard the O-rings (11) and (12).
R 1EFF : 106-149, 303-399, 401-499, 1 21-51-11Page 420 1 1 Aug 01/05 1 1 1CES 1
Pressure Sensor - Component Location
Figure 402/TASK 21-51-11-991-002
R 1EFF : 401-499, 1 21-51-11 Page 421
1 1 Aug 01/05
1 1
1CES 1
TASK 21-51-11-400-001-A
Installation of the Differential Pressure Sensor 23HB2 (24HB2)
WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM
_______ FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE. HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
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