-Tanks No. 1 and 2: +110/-0 lbs (+50/-0 kgs)
-Center Tank: +170/-0 lbs (+80/-0 kgs)
(b)
Write the value shown on the fuel quantity indicator.
(c)
Open the access panel, 6540, for the refuel control panel, if the door is closed.
(d)
Write the value shown on the applicable refuel quantity indicator.
(e)
Compare the values on the fuel quantity indicator and the refuel quantity indicator. 1) The values must be the same with a tolerance of |20 pounds
(|20 kilograms).
F. Put the Airplane Back to Its Usual Condition
S 865-026-003
(1) Open these circuit breakers and close them again:
NOTE: This removes the error codes in the memory of the
____
indicator.
(a) P6 Main Power Distribution Panel
1) QTY
2) EP GND FUELING
S 415-027-003
(2)
Close the access door, 6540, for the refuel control panel (P15).
S 865-028-003
(3)
Remove the electrical power, if it is not necessary for other tasks (AMM 24-22-00/201).
TASK 28-41-02-825-029-003
4. System Test - Fuel Quantity Indicating System
_____________________________________________
A. Special Tools and Equipment
(1)
System test unit - Model 8000, Barfield Instrument Corp., Miami, Florida 33142
(2)
Test harnesses
NOTE:____You must control the quality of the test cables. Make sure the stray capacitance for the test cables is less than
0.2 pf.
(a)
F72731-119 - center tank
(b)
F72731-121 - tanks No. 1 and 2
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
28-41-02 QUANTITY INDICATORS ú CONFIG 3
ú 03 Page 514 (BARFIELD SYSTEM TESTER) ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
B.
C.
D.
A
737-300/400/500MAINTENANCE MANUAL
References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 27-81-00/201, Leading Edge Flaps and Slats
(3)
AMM 28-23-00/201, Defueling
(4)
AMM 28-41-81/401, Fuel Summation UnitAccess
(1)
Location Zones 101 Control Cabin, Left 217 Right Main Wheel Well 303 Left Wing Inboard Leading Edge 402 Right Wing Outboard Leading Edge 403 Right Wing Inboard Leading Edge
Prepare for the System Test
S 865-030-003
(1) Connect the external electrical power (AMM 24-22-00/201).
S 865-057-003
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAPS. THE FLAPS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(2) Extend the leading edge flaps (AMM 27-81-00/201).
S 495-032-003
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO
_______ INSTALL THE LE FLAP SAFETY LOCKS. THE LE FLAPS CAN MOVE QUICKLY IF YOU DO NOT INSTALL THE SAFETY LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3)
Install locks on the leading edge flaps (AMM 27-81-00/201).
S 655-033-003
(4)
Remove all fuel from the fuel tank and the fuel in the sumps (AMM 28-23-00/201).
NOTE: If you do the test for only one tank system, you can move
____
the fuel into the other tanks.
S 865-034-003
(5)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel
1) QTY
2) EP GND FUELING
(6)
Remove the fuel quantity indicator from the pilots' panel.
S 015-035-003
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIMMONDS DIGITAL FUEL ú
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