FLOAT
MAGNET

PUSH
TURN

LATCH
BUMPER
MOUNTING RETAINER
BASE (VIEWED FROM BELOW THE WING)

A
3. HOUSING
3. HOUSING
PLASTIC PICK
2. O-RINGS  2. O-RING  2. O-RINGS 
GUIDE 
SPRING 
GUIDE O-RING SEE RETAINER O-RING A  PICK PLASTIC 
STEEL ARMATURE STICK SUB ASSEMBLY  2. O-RING 
LATCH  REMOVAL OF O-RING(S) (2) 

Fuel Measuring Stick Assembly
Figure 801

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE MAGNETIC FLOAT TYPE ú

 28-41-11
 OF FUEL MEASURING STICK  ú CONFIG 2 ú 01 Page 802 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 018-005-002
 (4)  Remove the fuel measuring stick (1) from its housing (AMM 28-41-11/401).
 S 038-006-002
 WARNING: MAKE SURE THE FUEL TANK CONTAINS LESS THAN THE MAXIMUM FUEL
_______ GIVEN IN TABLE 1 BEFORE YOU LOOSEN THE HOUSING. A FUEL SPILL CAN OCCUR. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (5)  
Put a nine sixteenth inch (9/16 inch) hexagonal wrench through the bottom of the base and into the bottom of the housing until it has a good fit.

 S 038-007-002

 (6)  
Loosen the housing (3) from the base with the wrench.

 S 038-008-002
 CAUTION:_______DO NOT MOVE THE HOUSING MORE THAN NECESSARY. YOU CAN CAUSE DAMAGE TO THE FLOAT AND FLOAT STOP.
 (7)  
Carefully move the housing down until it is possible to remove the O-ring(s) (2) from the end of the housing.

 S 038-009-002

 (8)  
Use a plastic pick to remove the O-ring(s) (2) from the housing.

 S 368-010-002

 (9)  
Install new O-ring(s) (2) on the housing.

 S 438-011-002

 (10)
 Lift the housing into the base assembly.

 S 438-006-002

 (11)
 Tighten the housing into the base assembly with the hexagonal wrench to a torque of 40-50 inch-pounds (4.5-5.6 Newton-meters).

 S 658-012-002

 (12)
 Refuel the applicable tank until the fuel quantity is more than the maximum quantity shown in table 1.

 (13)
 Do a check for fuel leakage in the area of the fuel measuring stick.

 S 218-013-002
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 28-41-11
 OF FUEL MEASURING STICK  ú CONFIG 2 ú 01 Page 803 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 418-014-002
 (14)
 If there is no fuel leakage, install the fuel measuring stick again (AMM 28-41-11/401).

 S 428-015-002

 (15)
 If the fuel leakage continues, replace the housing for the fuel measuring stick.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE MAGNETIC FLOAT TYPE ú

 28-41-11
 OF FUEL MEASURING STICK  ú CONFIG 2 ú 01 Page 804 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 TANK AND COMPENSATOR UNIT - REMOVAL/INSTALLATION
________________________________________________
 1.  General
_______
 A.  This procedure has two tasks:
 (1)  
A task to remove the tank unit or the compensator unit

 (2)  
A task to install the tank unit or the compensator unit.

 B.  The procedure is the same for the tank units or the compensator units.
 C.  The access to the tank units or compensator units is different for each unit.
 TASK 28-41-21-004-001
 2.  Remove the Tank Unit or the Compensator Unit (Fig. 401)
____________________________________________
　
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