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73-34-00
ALL ú ú C01 Page 503 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 015-023-C00
WARNING: OBEY THE INSTRUCTIONS IN THIS PROCEDURE WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(2)
Open the left thrust reverser (AMM 78-31-00/201).
S 495-007-C00
(3)
Put the container below the differential pressure switch of the fuel filter.
(a) This will catch all fuel leakage from the fuel line.
S 035-008-C00
(4)
Disconnect one end of the fuel inlet line between the fuel filter and the differntial pressure switch (Fig. 502).
S 685-009-C00
(5)
Permit the fuel in the line to drain into the container.
S 495-010-C00
(6)
Install a temporary plug or cap in the open line or port on the fuel filter housing.
NOTE:____This is to prevent fuel leakage. Fuel leakage from the open line can occur during this check if a cap is not installed.
S 495-011-C00
(7)
Connect an air pressure source to a pressure gage or the test equipment, if used.
S 495-021-C00
(8)
Connect the gage or test equipment to the fuel inlet pressure line of the differential pressure switch for the fuel filter.
NOTE: This is to pressurize the inlet (lower) side of the switch
____
(Fig. 502).
S 865-012-C00
(9) Set the equipment so that you can speak with the flight compartment.
(a) Slowly apply the air pressure to the switch.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
73-34-00
ALL ú ú C01 Page 504 ú Mar 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
AIR PRESSURE SUPPLY INLET
SEE A
BOEING TEST EQUIPMENT INSTALLATION (IF USED)
FUEL FILTER D1006 CONNECTOR ELECTRICAL
FUEL INLET PRESSURE LINE
FWD FUEL FILTER DIFFERENTIAL PRESSURE SWITCH A RECOMMENDED DISCONNECT LOCATION
Test Equipment Installation Figure 502 (Sheet 1)
B10391
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
73-34-00
ALL ú ú C01 Page 505 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FUEL FILTER BYPASS WARNING SYSTEM LIGHT
TEST EQUIPMENT INSTALLATION SCHEMATIC
Test Equipment Installation
Figure 502 (Sheet 2)
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ú C02 Page 506
ú Nov 15/92
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