26-21-00
 ALL  ú ú 01 Page 5 ú Mar 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 ENGINE FIRE EXTINGUISHING SYSTEM - TROUBLE SHOOTING
___________________________________________________
 1. Equipment and Materials
_______________________
 CAUTION: CURRENT FLOW EXCEEDING 50 MILLIAMPS MAY DETONATE BOTTLE DISCHARGE
_______
 SQUIB.

 A. Ohmmeter incapable of supplying more than 50 milliamps.
 2. Prepare for Trouble Shooting
____________________________
 A. Check that the following circuit breakers are closed:
 (1)  
CONTROL CABIN LIGHTING INDICATOR MASTER DIM BUS (9 circuit breakers) on panel P6-3.

 (2)  
CONTROL CABIN LIGHTING DIM & TEST on panel P6-3.

 (3)  
FIRE PROTECTION DETECTION EXTINGUISHER BOTTLES RIGHT on panel P6-2.

 (4)  
FIRE PROTECTION DETECTION EXTINGUISHER BOTTLES LEFT on panel P6-2.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-21-00
 ALL  ú ú 01 Page 101 ú Oct 25/84
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
3. ________________________________________________________
Engine Fire Extinguishing System Trouble Shooting Charts

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-21-00
 ALL  ú ú 01 Page 102 ú Oct 25/84
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-21-00
 ALL  ú ú 01 Page 103 ú Mar 15/89
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 ENGINE FIRE EXTINGUISHING SYSTEM - ADJUSTMENT/TEST
__________________________________________________
 1.  General_______
 A.  This section contains an operational test (par. 2); a system test (par. 3); a tubing leak test (par. 4) and a tubing flow test (par./5) of the engine fire extinguishing system. The operational test checks the system using airplane instrumentation. The system test uses special equipment to provide a full system test. The leak test examines the tubing connections and seals. The tubing flow test examines the tubing for blockage and makes sure the tubing is routed correctly.
 TASK 26-21-00-715-001
 2.  Engine Fire Extinguishing Sytem - Operational Test__________________________________________________
 A.  References
 (1) AMM 24-22-00/201, Manual Control
 B.  Access
 (1)  Location Zone
 101, 102 Control Cabin

 C.  Prepare for the Test
 S 865-002
 (1)
Supply electrical power (AMM 24-22-00/201).

 S 865-003

 (2)
Disconnect these electrical connectors in the main wheel well:

 (a)
D586-L (forward) bottle, pressure switch

 (b)
D588-R (aft) bottle, pressure switch

 S 865-004
 (3) Make sure these circuit breakers on the P6-2 panel are closed:
 (a)
EXTINGUISHER BOTTLES RIGHT

 (b)
EXTINGUISHER BOTTLES LEFT

 (c)
EXTINGUISHER BOTTLE RIGHT

 (d)
EXTINGUISHER BOTTLE LEFT

 (e)
EXTINGUISHER BOTTLES APU

 S 865-006
 (4) Make sure these circuit breakers on the P6-3 panel are closed:
 (a)
INDICATOR MASTER DIM BUS BAT

 (b)
INDICATOR MASTER DIM BUS NO. 1 DC

 (c)
INDICATOR MASTER DIM BUS NO. 2 DC

 (d)
INDICATOR SECT 1

 (e)
INDICATOR SECT 2

 (f)
INDICATOR SECT 3

 (g)
INDICATOR SECT 4

 (h)
INDICATOR SECT 5

 (i)
　
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