S 014-010
 (1)  
If the circuit cards are not removed, do the steps that follow:

 (a)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 1)  On the main power distribution panel, P6: a) 6D5, FUEL QTY 1
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 b)  6D6, FUEL QTY 2
 2)  On the DC power distribution panel, P180: a) 180M8, FUELING VALVE 2 b) 180M9, FUELING PWR - HOT BAT c) 180C25, FUELING LTS PANEL d) 180C26, FUELING LTS RECP
 3)  On the left power distribution center, P414: a) 414F17, FUELING VALVE b) 414F22, FUELING PWR
 (b)  Open the electronics access door, 125B, to get access to the fuel quantity processor unit.
 NOTE: The fuel quantity processor unit is immediately forward
____ of the electronics access door.
 (c)  Open the door on the fuel quantity processor unit.
 S 034-012
 (2)  
Disconnect all the electrical connectors from the fuel quantity processor unit.

 S 034-013

 (3)  
Disconnect the cooling air hose from the side of the fuel quantity processor unit.

 S 024-014

 (4)
Remove the fuel quantity processor unit (AMM 20-11-22/401).

 TASK 28-41-13-404-054
 5.  Fuel Quantity Processor Unit (FQPU) Installation (Fig. 401)
________________________________________________
 A.  References
 (1)  
AMM 20-11-22/401, E/E Rack-Mounted Components

 (2)  
AMM 24-22-00/201, Manual Control

 (3)  
AIPC 28-21-52, Fig. 1

 (4)  
SSM 28-41-02, 28-41-03, 28-41-04, 28-41-05

 (5)  
WDM 28-41-12, 28-41-21, 28-41-22, 28-41-23, 28-41-24

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 B.  Access
 (1)  
Location Zone 125 Area Below Forward Cargo Container Compartment, Left

 (2)  
Access Panel
 125B Electronics Access Door

 C.  
Procedure

 S 424-061
 (1)  
Install the fuel quantity processor unit on the E6 equipment rack (AMM 20-11-22/401).

 S 434-062

 (2)  
Connect the cooling air hose to the side of the fuel quantity processor unit.

 S 434-063

 (3)  
Connect all the electrical connectors to the fuel quantity processor unit.

 NOTE: Make sure the connectors are in the correct location.
____
 S 434-064
 (4)  
If the circuit cards are not installed in the new FQPU, do this task: "Fuel Quantity Processor Unit Circuit Cards Installation".

 S 414-065

 (5)  
If all the circuit cards are installed in the new FQPU, do the steps that follow:

 (a)  
Supply electrical power, if it is not available (AMM 24-22-00/201).

 (b)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 1)  On the main power distribution panel, P6: a) 6D5, FUEL QTY 1 b) 6D6, FUEL QTY 2
 2)  On the DC power distribution panel, P180: a) 180M8, FUELING VALVE 2 b) 180M9, FUELING PWR - HOT BAT
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 c)  180C25, FUELING LTS PANEL
 d)  180C26, FUELING LTS RECP
 3)  On the power distribution center, P414:
　
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