26-21-01
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A
757
MAINTENANCE MANUAL
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).
B. Equipment
(1) Voltmeter - with a 10k ohm or greater
resistance
C. Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Fire Extinguisher Bottle | 26-21-03| 01 | 96 | | | 6 | Cartridge | | | 103C | | | 8 | Nut (2) | | | 102 | | | 10 | Washer - GND | | | 103F | | | 11 | Screw | | | 102E | 2.....….........…...................................…..........…......…........1
D. Reference
(1)
AMM 20-41-01/201, Electrostatic Discharge Sensitive Devices
(2)
AMM 24-22-00/201, Electrical Power - Control
E. Access
(1)
Location Zones
153 Aft Cargo Compartment (Left)
154 Aft Cargo Compartment (Right)
(2)
Access Panels
822 Aft Cargo Compartment Door
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757 MAINTENANCE MANUAL
F. Install the component.
S 214-037
WARNING: DO NOT TOUCH THE BOTTLE WHEN THE DISCHARGE PORTS ARE EXPOSED.
_______ KEEP CAPS ON THE PORTS. DO NOT LET THE BOTTLE HIT THE AIRPLANE. BE CAREFUL NOT TO DAMAGE THE BOTTLE. IF THE BOTTLE IS ACCIDENTALLY DISCHARGED, IT CAN CAUSE INJURY TO PERSONS.
(1) Before you install the bottle, make sure that its weight is not more than 0.1 pound from the weight that is written on the bottle. (If you install a bottle from storage, and do not do this check, obey the conditions in the next step).
NOTE: The measured weight of the bottle includes the charged
____ bottle, the inspection tag on the bottle and the swivel assemblies. If the squib cartridge is not installed on the fire extinguisher bottle, do not install it. Weigh the squib cartridges as loose parts. Include the weight of the squib cartridges in the measured weight. If the squib cartridges are installed, weigh the bottle with the cartridges installed. Remove all protective caps when the parts are weighed.
S 214-160
(2) If you install a fire bottle from storage, obey these conditions if you do not do the bottle-weight check:
(a)
Make sure that the bottle weight was measured, was in limits, and that the weight was recorded before it was put in storage.
(b)
Make sure that the bottle was in storage for less than five years.
(c)
Make sure that the bottle assembly has no dents, scratches, or other damage.
S 434-124
(3) If the discharge cartridge is not installed on the fire extinguisher bottle, do the procedure to install the discharge cartridge (squib).
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757 MAINTENANCE MANUAL
S 434-038
(4)
Set the bottle mounting lugs on the support bracket.
S 434-039
(5)
Install the mounting nuts and bolts (four places).
S 824-040
(6)
Loosen the discharge head gland nut and move the discharge heads to give the best access to the hose connections.
S 434-041
(7)
Remove the discharge port caps and connect the discharge hoses to the ports. Refer to the outlet identification decal above each discharge outlet.
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