S 014-006
 (5)  
Open the access door on the forward module to get access to the limit switch.

 (6)  
Remove the ball lock pins from the ball-nut load arms.

 (7)  
Disconnect module 2 from module 1.

 S 034-007
 S 034-008
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE CARGO LOADER SYSTEM ú

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A
757
MAINTENANCE MANUAL

SIDEWALL SIDEWALL LIMIT SWITCH
EXTEND-LIMIT SWITCH (REF) LINING SUPPORT SENSOR

(REF) RECEPTACLE
(REF) RETRACT-LIMIT SWITCH
SEE A
LIMIT SWITCH ESCUTCHEON
ACTUATOR (REF)
A
A (MAGNET)
FWD NO. 2
BRACKET CARGO DOOR
FWD MODULE 2
CONTROL SWITCH IN FULLY
INBD RETRACTED POSITION
AFT CARGO COMPARTMENT
SIDEWALL LINING (REF)
RETRACT-LIMIT SWITCH SENSOR
A
C
ROLLER GUIDE
ASSEMBLY (PART
OF MODULE 2)
SCREW,
WASHER
(2 LOCATIONS)
RETRACT-LIMIT
NS
MICRO SWITCH
NS
NS

ACTIVE SURFACE

LIMIT
SWITCH
ACTUATOR
(MAGNET)
BRACKET
SWITCH SENSOR
C
FWD RECEPTACLE
B-B (REF)
ESCUTCHEON (REF)
A-A
SHIM
ROLLER GUIDE
ASSEMBLY (PART

0.50 |0.20 INCHOF MODULE 2)
BRACKET
LIMITSWITCH LIMIT
SWITCH INBD ACTUATOR SENSOR (MAGNET)
C-C
Aft Cargo Loader Retract-Limit Switch Installation
Figure 401

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A
757
MAINTENANCE MANUAL

SIDEWALL LINING (REF) BRACKET (REF)
FWD EXTEND-LIMIT SWITCH
A Aft Cargo Loader Extend-Limit Switch Installation Figure 402 (Sheet 1)

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757
MAINTENANCE MANUAL

RECEPTACLE

(4 LOCATIONS)
A-A

(REF)
B-B
Aft Cargo Loader Extend-Limit Switch Installation
Figure 402 (Sheet 2)

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757 MAINTENANCE MANUAL
 S 034-009
 (8)  
Remove the stops from the forward end of module 1.

 S 984-010

 (9)  
Move module 1 under module 2 to get access to the limit switch sensor.

 S 014-011

 (10)
 Remove the sidewall panel near the sensor to get access to the wire splice (Ref 25-50-02).

 S 034-012

 (11)
 Disconnect the electrical wires from the sensor.

 S 024-013

 (12)
 Remove the screws that hold the sensor to the receptacle, and remove the sensor from the receptacle.

 NOTE: Be careful not to cause damage to the wires when you pull
____
 the sensor from the receptacle.

 D. Procedure - Install the Retract-Limit Switch
 S 434-014
 (1)  
Connect the electrical wires to the sensor.

 S 424-015

 (2)  
Put the sensor on the receptacle and install the screws.

 S 414-016

 (3)  
Install the sidewall panel (Ref 25-50-02).
　
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