737-300/400/500
MAINTENANCE MANUAL
TANK NO. 2 BUSSING PLUG
SEE C
TANK NO. 1 BUSSING PLUG
SEE C
TANK AND COMPENSATOR UNIT BUSSING PLUG
FUEL QUANTITY INDICATING SYSTEM ELECTRICAL CONNECTOR
BUSSING PLUG C
Fuel Quantity Indicating System Component Location
Figure 501 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02 QUANTITY INDICATORS ú CONFIG 2
ú 05 Page 507 (SIMMONDS SYSTEM TESTER) ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
FUNCTION MEASURE SWITCH
DO NOT
TO
CONNECT TO
COMPENSATOR
FUEL
AND TANK
QUANTITY
UNITS
INDICATOR
SIMMONDS PSD60-1 SYSTEM TESTER
SIMMONDS PSD40-1 SYSTEM TESTER
TANK ADAPTER CABLES
WING PSD40-502-3
CENTER PSD40-502
Test Equipment Set-Up for Capacitance Measurement
Figure 502 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02 QUANTITY INDICATORS ú CONFIG 2
ú 01 Page 508 (SIMMONDS SYSTEM TESTER) ú Jul 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
POWER SWITCH
SIMMONDS
PRECISION
ON PF
PRESS FOR
TWO TERM.
MEG READINGS
506.6
CHASSIS
M
OFF
PSD60-1
AIRCRAFT ONLY
SIM TU ONLY SIMULATOR
F
SIM TU & COMP U
INDICATOR
TANK N UNITS
TU
MEASURE INT C COMP
T MEASURE EXT
0 2 0 42
LOZ
T
TU
PF COMP
T
LOZ-HIZ
U
10-200 PF
10-2000 PF LOZ-COMP S
COMP-HIZ
HIZ
LOZ-SHLD E
C
L
SHLD H COMP-SHLD
O
E
M
HIZ-SHLD
M
C
P
SHLD-GND
T
COMP
LOZ-GND
COMP-GND
C
HIZ-GND SYSTEM TESTER
ADAPTER
TANK
CABLES
CONNECT TO
AIRFRAME
WING
PSD40-502-3GROUND
CENTER
PSD40-502
DO NOT TO
CONNECT TO PSD40-503 COMPENSATOR
FUEL AND TANK
QUANTITY UNITS
INDICATOR
AIRCRAFT
ADAPTER
T-CABLE WIRINGCABLE
SIMMONDS PSD60-1 SYSTEM TESTER
Test Equipment Set-Up for Capacitance Measurement
Figure 502 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02 QUANTITY INDICATORS ú CONFIG 2
ú 01 Page 509 (SIMMONDS SYSTEM TESTER) ú Jul 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
FUNCTION MEASURE SWITCH
FUNCTION HIZ-SHLD SHLD-GND
SIMULATOR COMP-SHLD LOZ-GND
SIMMONDS
LOZ-SHLD
COMP-GND COMP 2 LOZ-COMP HIZ-GND
PRECISION
X100 PF
PF
V1 M^ D1
COMP
D4
COMP-HIZ HIGH TU LOW
FUNCTION
LOZ-HIZ 0-200 PF
S3 TU
MEASURE
SELECT
SWITCH
INT CAP
SIM EXT CAP CAP SELF TEST
MEG MEG
X10 PF V2 FUNCTION SEL S2 D2
0-25 PF
J1 LOZ J4 PSD40-1 COMP
J2 HIZ
TESTER
POWER
J3 COMP
X10 PF V3 INDICATOR TAN
SWITCH
D3
0-25 PF ON
J7 COMP
J9
O F
S1
CHA SIS
LOZ 2 HIZ COMP 2
GROUNDED TO UNSHIELDED AIRPLANE
COMP
STRUCTURE COAXIAL
F72731
FUEL QUANTITY
INDICATOR
TO COMPENSATOR AND TANK UNITS
DO NOT CONNECT
SIMMONDS PSD40-1 SYSTEM TESTER WITH THE F72731 CABLE
Test Equipment Set-Up for Capacitance Measurement
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