S 434-117
(3)
Do the steps that follow to connect an electrical connector to a fire bottle squib.
(a) If a protective cover is installed, remove the protective cover.
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MAINTENANCE MANUAL
CAUTION: IF A SHUNT PLUG IS INSTALLED, PULL THE SHUNT PLUG STRAIGHT
_______ OFF THE FIRE BOTTLE SQUIB. IF YOU TWIST OR WIGGLE THE SHUNT PLUG, YOU CAN CAUSE DAMAGE TO THE SQUIB PINS.
(b) If a shunt plug is installed, pull the shunt plug straight off the squib and discard the shunt plug.
NOTE: Shunt plugs should not be used to cover the fire bottle
____ squibs because they can cause damage to the squib pins.
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)
Make sure the squib pins are not bent or damaged.
(e)
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.
(f)
Connect the electrical connector to the applicable squib. Refer to Table 401.
(g)
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.
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757 MAINTENANCE MANUAL
G. Test the installation of the squib.
S 864-013
(1)
Supply electrical power (AMM 24-22-00/201).
S 864-014
(2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P6 panel:
(a)
6H1, FIRE EXTINGUISHING ENG L BTL 1
(b)
6H2, FIRE EXTINGUISHING ENG L BTL 2
(c)
6H3, FIRE EXTINGUISHING ENG R BTL 1
(d)
6H4, FIRE EXTINGUISHING ENG R BTL 2
S 984-016
(3) Push the TEST switch on the SQUIB TEST Control Panel on the right side panel, P61.
(a) Make sure the green L ENG 1 and 2 and R ENG 1 and 2 squib test lights come on.
S 984-132
(4) Release the TEST switch.
(a) Make sure the squib test lights go off.
S 864-025
(5) Remove electrical power if it is not necessary (AMM 24-22-00/201).
TASK 26-21-01-004-026
4. Remove the Engine Fire Extinguisher Bottle 1 or 2 (as applicable) (Fig. 401)_________________________________________________
A. General
(1) The two engine fire extinguisher bottles are in the front of the aft cargo compartment. Each fire extinguisher bottle has two discharge cartridges (squibs). The removal/installation procedure is the same for both bottles and squibs.
WARNING: DO NOT TOUCH THE SQUIB BEFORE YOU DO THE PROCEDURES FOR DEVICES
_______ THAT ARE SENSITIVE TO ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE THE FIRE BOTTLE TO RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
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