S 866-271
(24)
Release the ENG/APU/CARGO TEST Switch.
S 766-272
(25)
Make sure that the multimeter on the squib circuit test box shows 0 |2 volts and the BOTTLE DISCHARGE light on the squib circuit test box stays off.
S 026-273
(26)
Remove the jumper wire from connector D4398.
S 486-274
(27)
Install Test Relay K10335.
S 866-275
(28)
Push and hold the ENG/APU/CARGO TEST switch.
S 766-276
(29)
Make sure that the multimeter on the squib circuit test box shows 0 |2 volts and the BOTTLE DISCHARGE light on the squib circuit test box stays off.
S 866-277
(30)
Release the ENG/APU/CARGO TEST switch.
S 866-032
(31)
Open this circuit breaker on the P6 panel and attach a DO-NOT-CLOSE tag:
(a) 6G1, FIRE EXT APU
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S 026-033
(32)
Disconnect the APU extinguisher squib electrical connector D2262 from the multimeter.
S 866-207
(33)
Set the LOAD CHECK switch on the squib test box to OFF.
NOTE: Adapter cables are included with the squib circuit tester
____
and must have the correct connectors.
H. Squib Electrical Connection Procedure
NOTE: Do this procedure each time you connect an electrical connector to
____
a fire bottle squib.
S 436-295
(1) Do the steps that follow to connect electrical connector D2262 to the fire bottle squib.
S 866-198
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.
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.
(b) Make sure there is no voltage between pins 1 and 2 of the electrical connector.
NOTE: Connect a 10 Kohm resistor across the meter to remove
____ any stray voltage from the electrical connector.
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757 MAINTENANCE MANUAL
(c)
Make sure the squib pins are not bent or damaged.
(d)
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.
(e) Connect the electrical connector to the fire bottle squib.
S 946-058
(3) 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.
(a)
Disconnect the electrical connector from the fire bottle squib.
(b)
Make sure the squib electrical pins are not bent or damaged.
(c)
Make sure the electrical connector is not damaged.
NOTE: The squib pins can cause damage to the electrical
____ connector if the pins do not enter the connector receptacles.
(d) Connect the electrical connector to the fire bottle squib.
I. Do the Test of the Squib Connection and Squib Test Control Panel
S 946-061
(1)
Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P6 panel:
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