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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 024-006
 (5)  Push the fuel temperature bulb into the adapter assembly, turn one-quarter turn counterclockwise, and pull to remove it from the adapter assembly.
 NOTE: Do not loosen or remove the adapter assembly or fuel will
____
 drain from the fuel tank.

 TASK 28-43-01-404-007
 3. Fuel Temperature Bulb Installation (Fig. 401)
__________________________________
 A. Consumable Materials
 (1)  
D00093 Oil - Lubricating, General Purpose, Low Temperature, MIL-L-7870

 B.
References

 (1)  
AIPC 28-43-01, Fig. 1

 (2)  
SSM 28-43-01

 (3)  
WDM 20-30-12, Moisture Proof Splices

 (4)  
WDM 28-43-12

 C.
Access

 (1)  
Location Zone 573 Rear Spar to Inbd Aileron Leading Edge, Left

 (2)  
Access Panel
 573CB Hydraulic Access Panel

 D.
Procedure

 S 644-008
 (1)  
Apply a light layer of oil to the external surface of the mounting connector on the fuel temperature bulb.

 S 424-009

 (2)  
Put the fuel temperature bulb into the adapter assembly and turn one-quarter turn clockwise to attach it to the adapter assembly.

 S 434-010

 (3)  
Connect the electrical cable on the fuel temperature bulb to the airplane leads with a moisture proof splice (WDM 20-30-12).

 (4)  
Close the hydraulic access panel, 573CB.

 (5)  
Install the aft fixed fairing on the No. 2 engine nacelle strut.

 S 414-011
 S 414-012
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A

747-400
MAINTENANCE MANUAL

NO. 2 ENGINE NACELLE STRUT SEE B
SEE A
AFT FIXED FAIRING OF THE
NO. 2 ENGINE NACELLE STRUT

NO. 2 ENGINE NACELLE STRUT A
ADAPTER ASSEMBLY
ELECTRICAL CABLE
FUEL TEMPERATURE BULB T445
LEFT WING
REAR SPAR

SPLICE
AIRPLANE LEADS
CLAMP
HYDRAULIC ACCESS PANEL 573CB
B

Fuel Temperature Bulb
Figure 401

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A 747-400 MAINTENANCE MANUAL
 (6)  S 864-013Remove the DO-NOT-CLOSE tag and close this circuit breaker: (a) P180 DC Power Distribution Panel 1) 180H17 FUEL SYSTEM EICAS INTFC CONT
 (7)  S 794-014Make sure the fuel temperature data shows on the main EICAS display.

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 1.

2.

3.

4.

A
747-400 MAINTENANCE MANUAL
 FUEL MEASURING STICK ASSEMBLY - DESCRIPTION AND OPERATION
_________________________________________________________
General
_______
 A.  The fuel measuring stick assemblies are provided as a manual means of measuring the quantity of fuel in the tanks. The measuring sticks can also assist the ground crew in fueling operations by allowing a comparison between the measuring sticks and the fueling quantity indicators in the airplane.
 B.  Three sticks are located in each reserve tank, three sticks in each inboard and outboard main tank, and one stick in the center wing tank (Fig. 1). The lengths and configurations of the sticks vary, depending on the tank and location within the tank in which they are installed. Each measuring stick is marked with a position number, either on the head of the measuring stick or on the side of the measuring stick in line with the part number.
　
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