S 434-040

 (3)  
Install the ball lockpins to the ball-nut load arms.

 S 414-044

 (4)  
Close the access door on the aft module.

 S 444-005

 (5)  
Do the cargo loader activation procedure, if it is necessary (Ref 25-51-00/201).

 S 714-006

 (6)  
Do the cargo loader system test (Ref 25-51-00/501).

 TASK 25-51-07-404-007
 3. Forward Cargo Loader Extend Limit Switch - Removal/Installation (Fig. 402)
_______________________________________________________________
 A. References
 (1)  
24-22-00/201, Electrical Power - Control

 (2)  
25-50-02/401, Cargo Compartment Sidewall Panels.

 (3)  
25-51-00/201, Cargo Loader Systems (Deactivation)

 (4)  
25-51-00/501, Cargo Loader System

 B. Access
 (1)  
Location Zones
 122 Forward Cargo Compartment (Right)

 (2)  
Access Panels
 821 No. 1 Cargo Door

 C. Prepare for Removal
 S 864-009
 (1)  Hold the control switch in the UNLOAD position until the aft module has moved away from the aft wall of the cargo compartment.
 NOTE: If the cargo loader does not operate, deactivate the cargo
____
 loader (Ref 25-51-00/201).

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757 MAINTENANCE MANUAL
 S 864-010
 (2)  
Remove electrical power (Ref 24-22-00)

 S 864-011

 (3)  
Open these circuit breakers on the APU/External Power panel, P34, and attach DO-NOT-CLOSE tags:

 (a)  
34A6, FWD CARGO LOADER CONT

 (b)  
34B14, FWD CARGO LOADER DRIVE

 S 014-012
 (4)  Open the access door on the aft module to get access to the limit switch.
 S 034-042
 CAUTION: MAKE SURE YOU ARE CAREFUL WHEN YOU PULL THE SENSOR FROM THE
_______ RECEPTACLE. DAMAGE TO THE ELECTRICAL WIRES CAN EASILY OCCUR.
 (5)  
Remove the screws that hold the sensor to the receptacle and pull the sensor from the receptacle.

 S 024-016

 (6)  
Remove the sensor.

 D. Procedure - Remove the Limit Switch
 S 034-019
 (1)
Remove the screws that hold the limit switch to the bracket.

 S 034-020

 (2)  
Disconnect the electrical wires from the limit switch.

 S 024-021

 (3)  
Remove the limit switch.

 E. Procedure - Install the Limit Switch
 S 434-022
 (1)  
Connect the electrical wires to the limit switch.

 S 424-023

 (2)  
Put the limit switch on the bracket and install the screws and the nuts that hold the limit switch to the bracket.

 (3)  
Adjust the trigger plate assembly to the dimension shown.

 (4)  
Install the sidewall panel (Ref 25-50-02).

 S 824-026
 S 414-034
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757 MAINTENANCE MANUAL
 F.  Put the Airplane Back in its Usual Condition. S 414-035
 (1)  
Close the access door on the aft module.
 S 444-036

 (2)  
Activate the cargo loader, if it is necessary (Ref 25-51-00/201). S 714-037

 (3)  
Do the cargo loader system test (Ref 25-51-00/501).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH FORWARD CARGO LOADER ú
　
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