(3)  
AMM 20-40-12/401, Electrostatic Sensitive Discharge Devices

 B. Access
 (1)  Location Zone
 16 Left Main Wheel Well

 C. Install the Engine Fire Extinguish Bottle
 S 284-056
 (1)  Weigh the bottle.
 (a)  The bottle weight must be +0/-.10 pound within the total weight shown on the tag.
 S 034-051
 (2)  Remove the lockwire from each bottle discharge port assembly coupling.
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 S 434-011
 (3)  
Support the fire extinguisher bottle in the support frame and install the mounting bolts.

 S 434-012

 (4)  
Connect the discharge lines to the discharge outlet.

 S 434-015

 (5)  
Tighten the retaining nut at the discharge outlet to 45-55
 pound-feet.

 S 434-016

 (6)  
Put the discharge squibs in the discharge outlets.

 NOTE: The squib must be inspected for damage with special attention
____ given to the soft seal, opposite the electrical connector, which protects the explosive charge. If punctured or otherwise damaged, the squib must be replaced with a new part.
 (a)  
Tighten the squib to 90 to 100 pound-inches.

 (b)  
Lockwire the squib to the discharge outlet.

 D. Test the bottle installation.
 S 754-017
 (1)  
Visually check that the engine fire extinguishing tubing is routed correctly.

 S 864-018

 (2)  
Supply electrical power (AMM 24-22-00/201).

 S 754-019

 (3)  
Make sure all four squib electrical connectors and both pressure switch connectors are disconnected.

 S 434-020

 (4)  
Install protective covers on each engine squib.

 S 864-021

 (5)  
Close these circuit breakers on the P6-2 panel:

 (a)  
EXTINGUISHER BOTTLES RIGHT

 (b)  
EXTINGUISHER BOTTLES LEFT

 (c)  
EXTINGUISHER BOTTLE RIGHT

 (d)  
EXTINGUISHER BOTTLE LEFT

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A 737-300/400/500MAINTENANCE MANUAL
 S 864-050
 (6)  Close these circuit breakers:
 (a)  CONTROL CABIN LIGHTING INDICATOR LIGHTS MASTER DIM BUS (nine
 circuit breakers) on panel P6-3
 S 864-022
 (7)  Put a jumper across pins 1 and 2 of connector D586 on the left
 (forward) fire extinguisher bottle pressure switch.
 (a)  Make sure the L BOTTLE DISCHARGED light on the P8-1 panel comes
 on.

 S 864-023
 (8)  
Remove the jumper from pins 1 and 2 of electrical connector D586.

 S 864-024

 (9)  
Reconnect the electrical connector D586 to left (forward) fire extinguisher bottle pressure switch.

 S 864-025

 (10)
 Put a jumper across pins 1 and 2 of connector D588 on the right (aft) fire extinguisher bottle pressure switch.

 (a)  Make sure the R BOTTLE DISCHARGED light on the P8-1 panel comes on.
 S 864-026
 (11)
 Remove the jumper from pins 1 and 2 of electrical connector D588.

 S 864-027

 (12)
 Reconnect the electrical connector D588 to right (aft) fire extinguisher bottle pressure switch.

 S 864-028

 (13)
 Set and hold the EXT TEST switch on the P8-1 panel in position 1.

 (a)  Make sure all of the lights on the panel P8-1 stay off.
 S 864-029
 (14) Set and hold the EXT TEST switch on the P8-1 panel in position 2.
 (a)  Make sure all of the lights on panel P8-1 stay off.
 S 864-030
　
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