EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02
QUANTITY INDICATORS ú ú 01 Page 10 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
N62 TANK 2 FUELING N63 CENTER TANK N61 TANK 1 FUELING
115V AC
IND (P15) FUELING IND (P15)FUELING IND (P15)
STBY BUS
C397
INTERNALS SAME INTERNALS SAME INTERNALS SAME
FUEL SYSTEMS
AS N50 AS N50 AS N50
F12 QTY 115V AC
EXT PWR
F10
RECEPTACLE C398
EP GND R10 FUEL POWER
F9FUELING SELECT RELAY F18
(E3-3)
1
P6-3 CIRCUIT FUEL QTY INDF12
C1240 F21 F8
BREAKER PANEL TANK 2
1
FUEL QTY IND
C1241
F7 F11
CTR
1
FUEL QTY INDF6F10
C1242
NO. 2 1TANK 1 F9TANK FUELING PANELC1243 F5
IND
F21R309 FUEL POWER
S160 FUEL IND
P6-3 PANEL
TEST IND (P15)F4
TRANSFER RELAY
F7 F8
F5 F6POWERSUPPLY
F3
F2
COMP F4 POWERSUPPLY M1097 LB/KG SELECT F18
F3CENTER
TRIMMERTANK 2
FUEL
F2 TANK
TANK 2
ZERO AND FULL
QTY
PROC
SCALE ADJUST F11
TANK 1 F14
F16 F2 CTR TANK
F17 F3 D1586 SELF TESTM290 ADAPTER
BUSSING
PLUG
FUEL SUMMATION UNIT
ASSY TANK 2
N50 TANK 2 FUEL QTY IND F4
F16 F6
F5 F8 F17 F7 INTERNALSSAME AS
COMP
F14 F21 N50
F9 D1590
NO. 1BUSSING M291 ADAPTER F10
TANK PLUG ASSY CTR TANK
N64 CENTER TANK
FUEL QTY IND
ON
F11 CENTER TANKM1098 TRIMMER
OFF
F12 INTERNALS
F18 INTERNALS
SAME AS
R11 REFUELING POWER INTERNALS SAME AS
N50
SELECT RELAY (E3-3)
M1096 TRIMMERSAME ASM290 OFTANK 1 D1586
S257 FUEL QTY TANK 2
TEST SW N49 TANK 1FUEL QTY IND 2 AIRPLANES WITH CIRCUITBREAKERS C1240 THRU C1243D1588
(P6-3 PANEL, POSITIONS
PILOTS INSTRUMENT PANEL M290 ADAPTERBUSSING F3,F4,F5, AND F6)PLUG
ASSY TANK 1
Fuel Quantity Indicating System Schematic 2
Figure 2 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02
QUANTITY INDICATORS ú ú 01 Page 11 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
ALIGNMENT SCREWDRIVER SLOT MARKS
NOTE: SOME PARTS ARE NOT SHOWN TO MAKE THE ILLUSTRATION EASIER TO READ.
Fuel Measuring Stick Extended Position (Example) Figure 3
A09885
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02
QUANTITY INDICATORS ú ú 04 Page 12 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
C. The microcomputer monitors the fuel quantity indicating system and supplies an error indication and code to help in the troubleshooting.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02
QUANTITY INDICATORS ú ú 02 Page 13 ú Nov 15/92
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