Pack Inlet-Pressure Sensor Figure 401/TASK 21-61-16-991-001- 12 (SHEET 1)
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Pack Inlet-Pressure Sensor Figure 401/TASK 21-61-16-991-001- 22 (SHEET 2)
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Installation of the Pack-Inlet Pressure Sensor 16HH (36HH)
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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R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft)
B. Referenced Information
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REFERENCE DESIGNATION
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12-33-21-618-001 Pre-conditioning through the HP Ground Connection 12-33-21-618-001 Pre-conditioning with the APU 20-28-00-912-002 Electrical Bonding of Components With Conductive
Bolts and Screws in the Tanks 21-61-00-710-001 Operational Test of the Pack Temperature-Control System 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 53-35-13-000-002 Removal of the Quick-Release Access Panels from the Belly Fairing Structure 53-35-13-400-002 Installation of the Quick-Release Access Panels on the Belly Fairing Structure 21-61-16-991-001 Fig. 401
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3. Job Set-up
__________
Subtask 21-61-16-860-050
A. Aircraft Maintenance Configuration
(1) Make sure that:
(a)
The aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).
(b)
The access panel is removed (Ref. TASK 53-35-13-000-002),
R 1_FOR 16HH 191KB.
R 2_FOR 36HH 192KB.
Subtask 21-61-16-865-053
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 16HH
122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 1HH X22 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 3HH X21 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
FOR 36HH 122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 21HH W22 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 23HH W21 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 24HH Y21 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 22HH Y20
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4. Procedure
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(Ref. Fig. 401/TASK 21-61-16-991-001)
Subtask 21-61-16-420-051
A. Installation of the Pack-Inlet Temperature Sensor
(1)
Clean the component interface and/or the adjacent area.
(2)
Make sure that the parts retained from the removed component are clean and in the correct condition.
R (a) FOR 16HH 1 Put the clamps (2) in position on the pack-inlet pressure
_
sensor (10).
2 Put the pack-inlet pressure sensor (10) in position on the
_
bracket (11).
3 Install the bolts (4) and the washers (3).
_ 4 Put the bonding strap (7) in position and install the screw
_ (6), the washer (8) and the nut (9) (Ref. TASK 20-28-00-912-002).
5 Remove the blanking caps from the disconnected electrical
_
connectors.
6 Make sure that the electrical connectors are clean and in the
_
correct condition.
7 Connect the electrical connector (5).
_ 8 Remove the blanking plugs from the disconnected line ends and
_ connect the pressure sense line (1).
9 TORQUE the pressure sense line-connector (1) to between 0.95
_ and 1.05 m.daN (84.07 and 92.92 lbf.in).
10 Make sure that the work area is clean and clear of tool(s) and
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