S 864-108

 (22)
 Close these circuit breakers:

 (a)  P6 Main Power Distribution Panel
 1) 6L10 FUEL CONT VALVE ENG 1
 2) 6L11 FUEL CONT VALVE ENG 2
 3) 6L12 FUEL CONT VALVE ENG 3
 4) 6L13 FUEL CONT VALVE ENG 4

 G.
Squib Discharge

 S 864-109
 (1)  Close these circuit breakers:
 (a)  P6 Main Power Distribution Panel
 1) 6H1 FIRE EXTINGUISHER ENG 1&3 B
 2) 6H2 FIRE EXTINGUISHER ENG 1&3 A
 3) 6H3 FIRE EXTINGUISHER ENG 2&4 B

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 4)  6H4  FIRE EXTINGUISHER ENG 2&4 A
 (2)  S 764-110Make sure the toggle switch on the squib circuit test box is set to OFF.
 (3)  S 484-111Connect the multimeter to the squib test box.
 (4)  S 484-112Attach the adapter cable to the squib test box.
 (5)  S 484-113Connect the adapter cable for the squib test box to connector, DM228C, on the fire bottle squib.
 (6)  S 864-115Pull the fire handle for each engine out.
 (7)  S 864-116Turn and hold the engine 1 fire handle fully counterclockwise. (a) Make sure the BOTTLE DISCH light on the test box comes on.
 (8)  S 974-118Make a record of the voltage shown on the multimeter (V1).
 (9)  S 864-119Set the toggle switch on the squib test box to ON.

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 S 974-120
 (10) Make a record of the voltage shown on the multimeter (V2).
 (a)  For voltage V1 in the range shown, make sure that voltage V2 is greater than or equal to the value shown in the engine test voltage table
 ENGINE TEST VOLTAGES
 _____________V1 V2

 18.00
 - 19.00 9.67

 19.01
 - 20.00 10.18

 20.01
 - 21.00 10.69

 21.01
 - 22.00 11.20

 22.01
 - 23.00 11.71

 23.01
 - 24.00 12.22

 24.01
 - 25.00 12.73

 25.01
 - 26.00 13.23

 26.01
 - 27.00 13.74

 27.01
 - 28.00 14.25

 28.01
 - 29.00 14.76

 29.01
 - 30.00 15.27

 30.01
 - 31.00 15.78

 31.01
 - 32.00 16.29

 32.01
 - 33.00 16.80

 33.01
 - 34.00 17.31

 34.01
 - 35.00 17.82

 35.01
 - 36.00 18.32

 S 864-121
 (11)
 Set the toggle switch on the squib test box to OFF.

 S 864-122

 (12)
 Release the handle and make sure the handle moves to the center 10 degrees.

 S 864-123

 (13)
 Put the handle back to the vertical position.

 S 864-124

 (14)
 Push in the fire handles for engine 1 and 2.

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MAINTENANCE MANUAL

 S 484-125
 (15)
 Disconnect the adapter cable for the test box from the connector DM228C.

 S 764-127

 (16)
 Repeat the squib circuit test for the left wing fire bottles with the data shown in the table:

 ~................................................................. | | | ELECTRICAL| | FIRE HANDLE | | WING | BOTTLE | CONNECTOR | SQUIB | ROTATION | ...................................................................
　
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