(2)
Put the access platform in position as necessary to get access to the cargo-compartment.
(3)
Remove the protection panel 132MW in the FWD cargo-compartment.
(4)
Remove the guard assemblies from below the spray nozzles.
(5)
Put the warning notices in position to tell persons that nitrogen will flow from the spray nozzles and make sure that there is a good flow of air through the work area.
**ON A/C 151-199,
Subtask 26-23-00-010-050-A
C. Get Access
(1)
Open the FWD cargo-compartment door 825 and the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-001)
(2)
Put the access platform in position as necessary to get access to the cargo-compartment.
(3)
Remove the protection panel 132SW in the FWD cargo-compartment.
(4)
Remove the guard assemblies from below the spray nozzles.
(5)
Put the warning notices in position to tell persons that nitrogen will flow from the spray nozzles and make sure that there is a good flow of air through the work area.
R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 604 1201-299, 301-399, 1May 01/05 1 1 1CES 1
R **ON A/C 401-499,
R Subtask 26-23-00-010-050-B
R C. Get Access
R (1) Open the FWD cargo-compartment door 825 and the AFT cargo-compartment
R door 826 (Ref. TASK 52-30-00-860-001)
R (2) Put the access platform in position as necessary to get access to the
R cargo-compartment.
R (3) Remove the protection panel 162AW in the AFT cargo-compartment.
R (4) Remove the guard assemblies from below the spray nozzles.
R (5) Put the warning notices in position to tell persons that nitrogen
R will flow from the spray nozzles and make sure that there is a good
R flow of air through the work area.
R **ON A/C 004-049, 051-099, 101-149, 151-199, 201-299, 301-399, 401-499,
4. Procedure_________
R **ON A/C 004-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 601/TASK 26-23-00-991-005)
**ON A/C 301-399,
(Ref. Fig. 601A/TASK 26-23-00-991-005-A)
R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 605 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
Check of Fire-Extinguishing Distribution-Piping for Leakage
Figure 601/TASK 26-23-00-991-005
R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 606 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1R Check of Fire-Extinguishing Distribution-Piping for Leakage R Figure 601A/TASK 26-23-00-991-005-A
R 1EFF : 301-399, 1 26-23-00Page 607 1 1 May 01/04 1 1 1CES 1
**ON A/C 004-049, 051-099, 101-149, 151-199, 201-299, 301-399,
Subtask 26-23-00-210-050
A. Do a check of the Cargo-Compartment Fire-Extinguishing
Distribution-Piping for Leakage and Obstruction.
(1)
Connect the ground pressure source (nitrogen), MISCELLANEOUS (Material No. 19-014), to the flexible hoses of the fire-extinguisher bottle 4005WX.
(a)
At the fire-extinguishing bottle 4005WX, disconnect the flexible hoses from the FWD COMPT and the AFT COMPT discharge head outlet ends.
(b)
Put protection caps on the discharge head outlet ends.
(c)
Put a blanking plug, MS21913-10, on the flexible hose for the AFT cargo-compartment.
(d)
Use an applicable adaptor to connect the ground pressure source together with the manometer 0 to 4 bar (58 psi) to the flexible hose for the FWD cargo-compartment.
(2)
Do a check of the distribution piping of the fire-extinguisher bottle 4005WX.
(a)
Operate the ground pressure source and pressurize the FWD cargo-compartment distribution lines to approx. 3.0 bar (43.5 psi).
(b)
In the FWD cargo-compartment, make sure that there is good flow of nitrogen from the spray nozzle(s).
NOTE : The nitrogen flows directly from the ground pressure
____
source to the spray nozzle(s).
(c)
Stop the supply of ground pressure.
(d)
In the FWD cargo-compartment, loosen the coupling nut(s) and remove the spray nozzle(s) from the discharge outlet(s).
(e)
Install blanking cap(s), MS21914-10, on the discharge outlet(s).
1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 608 1201-299, 301-399, 1Aug 01/05R 1 1 1CES 1
(f)
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