(b)
Close the QTY and the EP GND FUELING circuit breaker and let the system become warm for five minutes.
(c)
Make sure the fuel quantity indicator shows the applicable full value with the applicable tolerance: ~........................................... | TANK | FULL VALUE | ............................................. | No. 1 and 2 *[1] | 11000 |110 pounds | ............................................. | Center *[1] | 16800 |170 lb | ............................................. | No. 1 and 2 *[2] | 5000 |50 kilograms | ............................................. | Center *[2] | 7600 |80 kilograms | 2..................…........................1 *[1] Fuel quantity indication in pounds *[2] Fuel quantity indication in kilograms
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28-41-02 QUANTITY INDICATORS ú CONFIG 1
ú 01 Page 509 (GULL SYSTEM TESTER) ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500
MAINTENANCE MANUAL
SYSTEM TESTER
GROUNDED TO AIRPLANE STRUCTURE
CONNECTED TO 115 VOLTS
GULL SYSTEM TESTER
Test Equipment Set-Up for Capacitance Simulation
Figure 503
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28-41-02 QUANTITY INDICATORS ú CONFIG 1
ú 02 Page 510 (GULL SYSTEM TESTER) ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(d)
Write the value shown on the fuel quantity indicator.
(e)
Open the access door, 6540, for the refuel control panel (P15).
(f)
Write the value shown on the applicable refuel quantity indicator.
(g)
Compare the values on the fuel quantity indicator and the refuel quantity indicator.
(h)
The values must be the same with a tolerance of |20 pounds (|20 kilograms).
S 715-022-001
(9)
Do this task: "Operational Test - Fuel Quantity Indicating System".
S 085-023-001
(10)
Remove the test equipment.
(a)
Open the QTY and EP GND FUELING circuit breakers.
(b)
Disconnect the test harness from the rear of the fuel quantity indicator and the airplane wire bundle.
(c)
Connect the airplane wire bundle to the rear of the fuel quantity indicator.
(d)
Install the fuel quantity indicator in the pilot's panel, and tighten the clamp screw.
S 865-024-001
(11) Close these circuit breakers and remove the DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel
1) QTY
2) EP GND FUELING
S 975-025-001
(12) Do a check of the values on the indicators with an empty tank.
(a)
Make sure the fuel quantity indicator shows a value of zero with the applicable tolerance:
-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.
(f)
The values must be the same with a tolerance of |20 pounds (|20 kilograms).
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