S 036-160
(44)
Disconnect the bottle 2 AFT cargo squib connector, D4420, from the squib test box adapter cable.
(45)
Set the LOAD CHECK switch on the squib test box to the OFF position.
S 866-161
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757 MAINTENANCE MANUAL
G. Squib Electrical Connection Procedure
NOTE: Do this procedure each time you connect an electrical connector to
____
a fire bottle squib.
S 436-174
(1) Do the steps that follow to connect an electrical connector to a fire bottle squib.
(a)
Make sure these circuit breakers on the P6 panel are open: 1) 6H1, FIRE EXTINGUISHING ENG L BTL 1 2) 6H5, FIRE EXTINGUISHING CARGO BTL 1 3) 6H6, FIRE EXTINGUISHING CARGO BTL 2
(b)
Remove the test equipment shorting plug from the fire bottle squib.
WARNING: MAKE SURE THERE IS NO VOLTAGE AT THE ELECTRICAL CONNECTOR.
_______ IF THERE IS A VOLTAGE AT THE ELECTRICAL CONNECTOR, THE SQUIB CAN RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS.
(c) Make sure there is no voltage between pins 1 and 2 of the electrical connector.
NOTE: Connect a 10 Kohm resistor across the meter leads to
____ remove any stray voltage from the electrical connector.
(d) Do the steps that follow to make sure you did not bend or damage the squib pins.
NOTE: This step is necessary because the pins are most likely
____ to be damaged the first time an electrical connector is connected to the squib.
1) Disconnect the electrical connector from the fire bottle
squib. 2) Make sure the squib pins are not bent or damaged. 3) Make sure the electrical connector is not damaged.
NOTE: The squib pins can cause damage to the connector if
____ the pins do not enter the electrical connector receptacles.
4) Connect the electrical connector to the fire bottle squib.
(e) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P6 panel: 1) 6H1, FIRE EXTINGUISHING ENG L BTL 1 2) 6H5, FIRE EXTINGUISHING CARGO BTL 1 3) 6H6, FIRE EXTINGUISHING CARGO BTL 2
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757 MAINTENANCE MANUAL
H. Connect the Squib Connectors
S 436-175
(1)
Do the Squib Electrical Connection procedure to connect the
electrical connector, D4412, to the FWD squib of bottle 1.
S 866-164
(2)
On the SQUIB TEST Control Panel, P61, push and hold the TEST switch.
(a)
Make sure the green CARGO FWD 1 squib test light on the SQUIB TEST Control Panel comes on.
(b)
Make sure the CARGO AFT 1, CARGO FWD 2 and CARGO AFT 2 squib test lights stay off.
S 866-166
(3) Release the TEST switch.
(a) Make sure the CARGO FWD 1 squib test light goes off.
S 436-176
(4)
Do the Squib Electrical Connection procedure to connect the
electrical connector, D4414, to the AFT squib of bottle 1.
S 866-312
(5)
On the SQUIB TEST Control Panel, P61, push and hold the TEST switch.
(a)
Make sure the green CARGO FWD 1 and CARGO AFT 1 squib test lights on the SQUIB TEST Control Panel come on.
(b)
Make sure the CARGO FWD 2 and CARGO AFT 2 squib test lights stay off.
S 866-170
(6) Release the TEST switch.
(a) Make sure the CARGO FWD 1 and CARGO AFT 1 squib test lights go off.
S 436-177
(7)
Do the Squib Electrical Connection procedure to connect the
electrical connector, D4418, to the FWD squib of bottle 2.
S 986-200
(8)
On the SQUIB TEST Control Panel, P61, push and hold the TEST switch.
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