S 866-004
(3)
Open this circuit breaker on the main power distribution panel, P6, and attach DO-NOT-CLOSE tag:
(a) 6G1, FIRE EXT APU
S 866-006
(4) Find the APU fire extinguisher bottle in the APU compartment.
S 866-196
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.
(5)
Before you touch the squib, do the procedure for devices that are sensitive to electrostatic discharge (AMM 20-41-01/201).
S 026-008
(6)
Disconnect the APU fire extinguisher electrical connector from the bottle discharge squib (Table 601).
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~.............................................................................. | TABLE 601 | | APU FIRE BOTTLE CONNECTIONS | ................................................................................ | Connector | Bottle Connected To: | ................................................................................ | D2262 | Bottle 1 - APU Discharge Squib | 2............................….................................................1
S 436-010
WARNING:_______ PUT PROTECTIVE COVERS ON THE FIRE BOTTLE SQUIBS. IF YOU DO NOT
PUT PROTECTIVE COVERS ON THE FIRE BOTTLE SQUIBS, THE FIRE
BOTTLES CAN RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO
PERSONS.
CAUTION:_______DO NOT PUT SHUNT PLUGS ON THE FIRE BOTTLE SQUIBS. THE SHUNT PLUGS CAN CAUSE DAMAGE TO THE SQUIB PINS.
(7) Install protective covers on the fire bottle squibs.
F. Do the APU Fire Switch Squib Discharge Circuit Check
S 866-197 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.
(1) Before you touch the squib, do the procedure for devices that are sensitive to electrostatic discharge (AMM 20-41-01/201).
S 486-011 WARNING: DO NOT INSTALL THE ELECTRICAL CONNECTOR TO THE BOTTLE SQUIB
_______ WHEN YOU DO A TEST. IF THE BOTTLE SQUIBS ARE ACCIDENTALLY FIRED, IT CAN CAUSE INJURY TO PERSONS.
(2)
Attach the adapter cable to the connector on the squib circuit test box.
S 426-012
(3)
Set the LOAD CHECK switch on the squib circuit test box to OFF.
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S 866-013
(4) Connect the APU squib connector, D2262, to the squib test circuit box adapter cable.
NOTE: Adapter cables are included with the squib circuit tester
____
and must have the correct connectors.
S 986-015
(5) Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P6 panel:
(a) 6G1, FIRE EXT APU
S 866-016
(6)
Connect the multimeter to the voltmeter jacks on the squib circuit test box.
S 866-017
(7)
Set the LOAD CHECK switch on the squib circuit test box to ON.
S 766-018
(8)
On the P8 panel, pull the APU fire handle out to the emergency fire position.
NOTE: When you pull the fire handles into the emergency fire
____ position, it is necessary to use the manual fire override switch behind the fire handle. When you turn the fire handle, it is necessary to hold the handle against the stops while the voltage is measured.
S 766-019
(9)
Make sure the multimeter on the squib circuit test box shows 0 +/- 2 volts.
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