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 S 436-044
 (1)  Do the Squib Electrical Connection procedure to connect the electrical connector, DM7906B, to the forward squib of bottle A.
 NOTE: The color identification is used for the fire extinguishing
____ system of the cargo compartment. The yellow is used to identify the extinguishing agent supply to the forward cargo compartment. The blue is used to identify the extinguishiing agent supply to the aft cargo compartment.
 S 866-046
 (2)  
Push and hold the TEST 1 switch on the squib test module.

 S 716-047

 (3)  
Make sure these indications occur on the squib test module:

 (a)  
The LOWER CARGO light A comes on.

 (b)  
The LOWER CARGO lights B, C, and D stay off.

 

 S 866-048
 (4)  Release the TEST 1 switch.
 (a)  Make sure the LOWER CARGO light A goes off.
 S 436-051
 (5)  
Do the Squib Electrical Connection procedure to connect the electrical connector, DM7906C, to the aft squib of bottle A.

 (6)  
Push and hold the TEST 2 switch on the squib test module.

 S 716-054

 (7)  
Make sure these indications occur:

 S 866-053
 (a)  The LOWER CARGO light A comes on.
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 26-23-05
 ALL  ú ú 05 Page 613 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  The LOWER CARGO lights B, C, and D stay off.
 (8)  S 866-055Release the TEST 2 switch. (a) Make sure the LOWER CARGO light A goes off.
 (9)  S 436-058Do the Squib Electrical Connection procedure to connect the electrical connector, DM7907B, to the forward squib of bottle B.
 S 866-060

 (10)
 Push and hold the TEST 1 switch on the squib test module.

 S 716-061

 (11)
 Make sure these indications occur on the squib test module:

 (a)
The LOWER CARGO lights A and B come on.

 (b)
The LOWER CARGO lights C and D stay off.

 

 S 866-062
 (12) Release the TEST 1 switch.
 (a) Make sure the A and B LOWER CARGO lights go off.
 S 436-065
 (13)
 Do the Squib Electrical Connection procedure to connect the electrical connector, DM7907C, to the aft squib of bottle B.

 S 866-067

 (14)
 Push and hold the TEST 2 switch.

 S 716-068

 (15)
 Make sure these indications occur on the squib test module.

 (a)
The LOWER CARGO lights A and B come on.

 (b)
The LOWER CARGO lights C and D stay off.

 

 S 866-069
 (16) Release the TEST 2 switch.
 (a) Make sure the LOWER CARGO lights A and B go off.
 S 436-072
 (17)
 Do the Squib Electrical Connection procedure to connect the electrical connector, DM7908B, to the forward squib of bottle C.

 S 866-073

 (18)
 Push and hold the TEST 1 switch on the squib test module.

 S 716-074

 (19)
 Make sure these indications occur on the squib test module:

 (a)
The LOWER CARGO lights A, B and C come on.

 (b)
The LOWER CARGO light D stays off.

 

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-23-05
 ALL  ú ú 03 Page 614 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 866-075
 (20) Release the TEST 1 switch.
 (a) Make sure the LOWER CARGO lights A, B and C go off.
 S 436-078
 (21)
 Do the Squib Electrical Connection procedure to connect the electrical connector, DM7908C, to the aft squib of bottle C.

 S 866-080

 (22)
 Push and hold the TEST 2 switch.

 S 716-081

 (23)
 Make sure these indications occur on the squib test module:

 (a)
The LOWER CARGO lights A, B and C come on.
　
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