737-300 400 500 AMM 飞机维护手册 燃油 FUEL 3(151)

 (2)  
Set the DISPLAY SELECT on the test unit to RES.

 (3)  
Set the RESISTANCE FUNCTION switch to EXT RES.

 (4)  
Set the power switch to ON.

 S 736-008-001
 S 736-009-001
 S 736-010-001
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 AIRPLANES WITHOUT ISOLATED FUEL QUANTITY ú  28-41-91
 TRANSMITTER (IFQT)  ú  CONFIG  1
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 ú  Mar 12/02 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL 
ASEE BUSSING PLUG CENTER TANK 
ASEE NO. 2 TANK BUSSING PLUG  BSEE 1 BUSSING PLUG AUXILIARY TANK 
ASEE NO. 1 TANK BUSSING PLUG 

BULKHEAD ELECTRICAL CONNECTOR
RECEPTACLE FOR THE FUEL TANK
BUSSING PLUG
BUSSING PLUG
FUEL TANKBUSSING
(FRONT SPAR SHOWN; ALMOST
RECEPTACLEPLUG
THE SAME FOR THE REAR SPAR) AUXILIARY TANK BUSSING PLUG
A
1 AIRPLANES WITH AN B
1
AUXILIARY FUEL TANK
Bussing Plug Locations
Figure 601

M46327
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
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 TRANSMITTER (IFQT)  ú  CONFIG  1
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (5)  S 736-011-001Touch the probes to each of these locations and make sure the resistance is more than the applicable minimum value: (a) Touch the probes to each of these locations and make sure the resistance is more than the applicable minimum value:
 NOTE:____ Change the position of the probes if the resistance value is less than the minimum value. If you cannot get a resistance that is more than the minimum value, the circuit is bad.
 ~............................................................ | LEAD 1 | LEAD 2 | MINIMUM RESISTANCE | .............................................................. | Pin 1 of receptacle | Shield of pin 1 | 1 megohm | .............................................................. | Pin 2 of receptacle | Shield of pin 1 | 1 megohm | .............................................................. | Pin 3 of receptacle | Shield of pin 1 | 1 megohm | .............................................................. | Shield of Pin 1 | Airplane ground | 10 megohms | 2.....................….................…....................1
 (6)  S 766-012-001Set the RESISTANCE FUNCTION knob on the system tester to AB to measure the resistance between pin 1 (COAX, Hi Z) and pin 2 (Tank Unit, Lo Z).
 (7)  S 766-013-001Make sure the resistance is more than 250 megohms.
 (8)  S 766-014-001Move the system tester switch to measure the resistance between the subsequent pin numbers or conductors. (a) Make sure the minimum resistance agrees with the values shown in this table:

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 AIRPLANES WITHOUT ISOLATED FUEL QUANTITY ú 28-41-91
 TRANSMITTER (IFQT)  ú  CONFIG  1
 ú  01  Page 604
 ú  Mar 12/02 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 ~..............................................................
 | SYSTEM TESTER SWITCH POSITION | MINIMUM RESISTANCE |
 | | Megohms |
 ................................................................
 | A - GND (Hi Z to Airplane Ground) | 10 |
 | B - GND (Tank Unit Lo Z to Airplane | 10 |
 | Ground) | |
 | C - GND (Compensator Lo Z to | 10 |
 | Airplane Ground) | |
 | A - C (Hi Z to COMP Lo Z) | 250 |
 2.......................................…......................1
　
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