(2.00 to 26.00 lbf.ft)
B. 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 25-55-12-000-001 Removal of the AFT Cargo Compartment Partition FR65 25-55-12-400-001 Installation of the AFT Cargo Compartment Partition
FR65 38-41-00-710-001 Operational Test of the Air Supply System (with ground air supply) 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
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
**ON A/C 001-049, 051-099, 101-149, 201-299,
38-41-00-991-004-A Fig. 501 R **ON A/C 151-199, 301-399, 401-499,
38-41-00-991-004 Fig. 501A
**ON A/C ALL
3. Job Set-up
__________
Subtask 38-41-00-861-054
A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002). **ON A/C 001-049, 051-099, 101-149, 201-299,
Subtask 38-41-00-010-056
B. Get Access
(1)
Open the FWD cargo-compartment door (Ref. TASK 52-30-00-860-001).
(2)
Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the FWD cargo-compartment door.
(3)
Set the FWD CARGO-COMPT LIGHT switch 6LU to the ON position.
(4)
Remove the access panels 131NW, 131PW (Ref. TASK 25-54-12-000-001).
(5)
Open the potable water-service panel 171AL.
R **ON A/C 151-199, 301-399, 401-499,
Subtask 38-41-00-010-056-A
B. Get Access
(1)
Open the AFT cargo-compartment door (Ref. TASK 52-30-00-860-001).
(2)
Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the AFT cargo-compartment door.
(3)
Set the AFT CARGO-COMPT LIGHT switch 8LU on the service panel 2024VU to the ON position.
(4)
Remove the access panel 162DW (Ref. TASK 25-55-12-000-001).
(5) Open the potable water-service panel 171AL.
**ON A/C ALL
Subtask 38-41-00-480-054
C. Install the Test Equipment
(1)
Remove the cap from the test port and connect the manometer to the test connection potable water-air system.
(2)
Connect the air supply cart to the ground air connection at the potable-water service panel.
4. Procedure
_________
**ON A/C 001-049, 051-099, 101-149, 201-299,
(Ref. Fig. 501/TASK 38-41-00-991-004-A) R **ON A/C 151-199, 301-399, 401-499,
(Ref. Fig. 501A/TASK 38-41-00-991-004)
Test Connection of the Air Supply System Figure 501/TASK 38-41-00-991-004-A
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 38-41-00Page 515 1 1 May 01/05 1 1 1CES 1
Test Connection of the Air Supply System
Figure 501A/TASK 38-41-00-991-004
R 1EFF : 151-199, 301-399, 401-499, 1 38-41-00Page 516 1 1 Aug 01/05 1 1 1CES 1
R **ON A/C ALL
Subtask 38-41-00-790-051
A. Leak Check of the Air Supply System
(1) Close the shutoff valves in the lavatories and galleys.
R (2) Pressurize the system to between 39 psi (2.6889 bar) and 41 psi
R (2.8268 bar).
R (3) Make sure that the pressure indication on the manometer is stable
R between 22 psi (1.5168 bar) and 33 psi (2.2752 bar) (Ref. TASK 38-41-
00-710-001).
R (4) Stop the the pressure supply to the potable-water service panel.
R (5) Make sure that the pressure indication at the manometer stays the
R same after 20 min.
R (6) Increase the pressure at the potable-water service panel to 55 +0 -3
R psi (3.7921 +0.0000 -0.2068 bar) and keep this pressure for 5 min.
R (7) Do a check for leaks at the air lines from the potable water service
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