D. 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
25-54-12-000-001 Removal of the FWD Cargo Compartment Partition FR34
25-54-12-400-001 Installation of the FWD Cargo Compartment Partition FR34
52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
21-63-19-991-001 Fig. 401
3. Job Set-up__________
Subtask 21-63-19-860-050
A. Aircraft Maintenance Configuration
(1) Make sure that:
(a)
The aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002),
(b)
The FWD cargo compartment door 825 is open (Ref. TASK 52-30-00-860-001),
(c)
The access platform is in position at the FWD cargo compartment door 825,
(d)
The access panel 131PW is removed (Ref. TASK 25-54-12-000-001).
1EFF : ALL 1 21-63-19Page 406 1 1 Feb 01/05R 1 1 1CES 1
Subtask 21-63-19-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 401-499,
49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC 52HH D08
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 21HH 23HH 1HH 3HH 24HH 22HH W22W21X22X21Y21Y20
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
R **ON A/C 106-149, 303-399,
R 122VU 4HH Y19
R **ON A/C 401-499,
R R 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 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 53HH 55HH 49HH 51HH W22 W21 X22 X21
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 56HH Y21 R 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC 54HH Y20 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC 50HH Y18 R
**ON A/C ALL
4. Procedure
_________
(Ref. Fig. 401/TASK 21-63-19-991-001)
Subtask 21-63-19-420-050
A. Installation of the Pressure Switch
(1)
Remove the blanking plugs from the disconnected line ends.
(2)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(3)
Clean the component interface and/or the adjacent area.
(4)
Make sure that the O-ring (3) is in a good condition. If necessary replace the O-ring (3).
(5)
Put the O-ring (3) in position on the pressure switch (2).
(6)
Install the pressure switch (2) and safety with MISCELLANEOUS (Material No. 19-009).
(7)
Remove the blanking caps from the disconnected electrical connectors.
(8)
Make sure that the electrical connectors are clean and in the correct condition.
(9)
Connect the electrical connector (1).
(10) Make sure that the work area is clean and clear of tool(s) and other items.
5. Close-up
________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
Subtask 21-63-19-865-052
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HH, 2HH, 3HH, 4HH, 21HH, 22HH, 23HH, 24HH.
R **ON A/C 401-499,
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