(g)
 At the ground pressure source, stop the supply of nitrogen.

 (h)
 On the manometer, after 5 minutes make sure that there is no decrease in pressure.

 (i)
 Release the pressure from the FWD cargo-compartment distribution line.

 (j)
 Disconnect the ground pressure source and the manometer from the flexible hose for the FWD cargo-compartment.

 (k)
 Put a blanking plug, MS21913-10, on the flexible hose for the FWD cargo-compartment.

 (l)
 Remove the blanking plug from the flexible hose for the AFT cargo-compartment.

 (m)
 Connect the ground pressure source together with the manometer to the flexible hose for the AFT cargo-compartment.

 (n)
 Do the step (2)(a) through (2)(l) again for the AFT cargo-compartment.

 (o)
 At the fire-extinguisher bottle 4005WX, remove the protection caps from the discharge head outlet ends.

 (p)
 Apply Grease

 CAUTION : APPLY A SMALL QUANTITY OF THE CORRECT GREASE TO THE
_______ MALE THREADS OF THE CONNECTIONS. THIS WILL PREVENT DAMAGE TO THE THREADS. MAKE SURE THAT GREASE DOES NOT GO INTO THE PIPES. GREASE IN THE PIPES CAN CAUSE A MALFUNCTION OF THE SYSTEM.
 Apply a small quantity of COMMON GREASE (Material No. 04-023) on the first three threads of the male connections.
 (q)
 Connect the flexible hoses to the discharge head outlet ends.

 (r)
 In the FWD and in the AFT cargo-compartment, at the discharge outlets, remove the blanking caps.

 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 609 1201-299, 301-399, 1Aug 01/05R 1 1 1CES 1

 (s) Install the spray nozzles. 
R  **ON A/C 401-499, 
R  Subtask 26-23-00-210-050-A 
R  A. Do a check of the Cargo-Compartment Fire-Extinguishing 
R  Distribution-Piping for Leakage and Obstruction. 
R  (1) Connect the ground pressure source (nitrogen), MISCELLANEOUS 
R  (Material No. 19-014), to the flexible hoses of the fire-extinguisher 
R  bottle 4015WX. 
R  (a) At the fire-extinguishing bottle 4015WX, disconnect the flexible 
R  hoses from the FWD COMPT and the AFT COMPT discharge head outlet 
R  ends. 
R  (b) Put protection caps on the discharge head outlet ends. 
R  (c) Put a blanking plug, MS21913-10, on the flexible hose for the AFT 
R  cargo-compartment. 
R  (d) Use an applicable adaptor to connect the ground pressure source 
R  together with the manometer 0 to 4 bar (58 psi) to the flexible 
R  hose for the FWD cargo-compartment. 
R  (2) Do a check of the distribution piping of the fire-extinguisher bottle 
R  4015WX. 
R  (a) Operate the ground pressure source and pressurize the FWD 
R  cargo-compartment distribution lines to approx. 3.0 bar (43.5 
R  psi). 
R  (b) In the FWD cargo-compartment, make sure that there is good flow 
R  of nitrogen from the spray nozzle(s). 
R  NOTE : The nitrogen flows directly from the ground pressure____ 
R  source to the spray nozzle(s). 
R  (c) Stop the supply of ground pressure. 
R  (d) In the FWD cargo-compartment, loosen the coupling nut(s) and 
R  remove the spray nozzle(s) from the discharge outlet(s). 
R  (e) Install blanking cap(s), MS21914-10, on the discharge outlet(s). 

R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 610 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1

R  (f) Operate the ground pressure source and pressurize the FWD 
R  cargo-compartment distribution line to approx. 3.0 bar (43.5 
R  psi). 
R  (g) At the ground pressure source, stop the supply of nitrogen. 
R  (h) On the manometer, after 5 minutes make sure that there is no 
R  decrease in pressure. 
R  (i) Release the pressure from the FWD cargo-compartment distribution 
R  line. 
R  (j) Disconnect the ground pressure source and the manometer from the 
R  flexible hose for the FWD cargo-compartment. 
R  (k) Put a blanking plug, MS21913-10, on the flexible hose for the FWD 
R  cargo-compartment. 
R  (l) Remove the blanking plug from the flexible hose for the AFT 
　
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