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A 737-300/400/500MAINTENANCE MANUAL
PROCEDURE 1

PROCEDURE 2

Procedure 1/Procedure 2
Figure 102

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A 737-300/400/500MAINTENANCE MANUAL
PROCEDURE 3

Procedure 3
Figure 103

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A 737-300/400/500MAINTENANCE MANUAL
PROCEDURE 4

Procedure 4
Figure 104

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E82107
A
737-300/400/500MAINTENANCE MANUAL
 FUEL QUANTITY INDICATING SYSTEM - ADJUSTMENT/TEST
_________________________________________________
 1.  General_______
 A.  This procedure has these tasks:
 (1)  
A test for the correct operation of the fuel quantity indicating system

 (2)  
A system trim

 (3)  
A system test

 B.  To do the test for the correct operation, you push the test switch in the control cabin and make sure the indicators operate. You do this procedure again at the P15 refuel panel on the wing.
 C.  After you replace one of these components, you must do a check of the value on the applicable fuel quantity indicator:
 (1)  
The fuel quantity indicator

 (2)  
The tank unit

 (3)  
The compensator

 (4)  
The wire bundle

 (5)  
The capacitance trimmer.

 D.  Compare the value to this table to see if you must do the trim procedure or the system test for the fuel quantity indicating system.
 NOTE: You must do this check before you put the fuel in the tank.
____
 ~...................................................................... | | ACTION REQUIRED | | ...................................................... | TANKS | | TRIM | SYSTEM TEST | | | NONE | (Ref Par. 3) | (Ref Par. 4) | ........................................................................ | 1 & 2 | 0 to +110 lbs | +110 to +200 lbs | over 200 lbs | | | 0 to +50 kgs | +50 to +100 kgs | over 100 kgs | ........................................................................ | CENTER | 0 to +170 lbs | +170 to +300 lbs | over 300 lbs | | | 0 to +80 kgs | +80 to +150 kgs | over 150 kgs | 2.................…................…..................…................1
 E.  When you replace the fuel summation unit, adjustment of the unit is not necessary.
 F.  If the value on a fuel quantity indicator changes suddenly, do a check for water in the applicable fuel tank (AMM 12-11-00/301).
 G.  An indicator in the control cabin is referred to as a fuel quantity
____
 indicator. An indicator in the refuel control panel (P15) on the wing is
 referred to as a refuel quantity indicator.
______
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A
737-300/400/500MAINTENANCE MANUAL
 TASK 28-41-00-715-001-001
　
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