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757 MAINTENANCE MANUAL
S 434-038
(5)
Set the bottle mounting lugs on the support bracket.
S 434-039
(6)
Install the mounting nuts and bolts (2) (four places).
S 824-040
(7)
Loosen the discharge head gland nut and adjust the discharge head so the discharge port is turned to provide the best possible hose connection.
S 434-041
(8)
Tighten the gland nut to 55 - 65 pound-feet.
S 434-042
(9)
Attach a lockwire from the gland nut to the discharge head.
S 434-043
(10)
Remove the discharge port cap.
S 434-080
(11)
Connect the discharge hose (6) to the port.
S 434-044
(12)
Install the ground strap (4) to the ground lug.
S 434-089
(13)
Install the electrical connector (1) to the bottle pressure switch. Refer to Table 401.
E. Squib Electrical Connection Procedure
NOTE: Do this procedure each time you connect an electrical connector to
____
a fire bottle squib.
S 434-087
(1) Do the steps that follow to connect an electrical connector to a fire bottle squib.
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S 864-133
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.
(2) Before you touch the squib, do the procedure for devices that are sensitive to electrostatic discharge (AMM 20-41-01/201).
(a) If a protective cover is installed, remove the protective cover.
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.
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(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 (3) to the fire bottle squib. Refer to Table 401.
(g)
Do the steps that follow to make sure you did not bend or damage the squib pins.
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