S 422-013

 (5)  
Put the limit switch and the switch cover in the hole in the RAT strut housing.

 S 422-014

 (6)  
Install the screws and washers which attach the switch cover to the RAT strut housing.

 S 432-015

 (7)  
Tighten the screws by hand until you adjust the switch.

 S 432-017

 (8)  
If the limit switch does not have inline electrical connectors, do this step:

 (a)  Install the electrical connectors on the wires in the wire harness and on the limit switch.
 S 432-018
 (9)  Connect the wires from the limit switch to the electrical connectors on the wire harness.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-21-21
 ALL  ú ú 01 Page 204 ú Dec 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
 S 432-019
 (10)
 Install the heat-shrink tubing on the electrical connectors.

 S 832-020

 (11)
 Do the Limit Switch Adjustment.

 S 622-021

 (12)
 Apply the sealant on the electrical leads on the limit switch.

 S 862-022

 (13)
 Retract the RAT (AMM 29-21-00/201).

 TASK 29-21-21-832-023
 4.  Limit Switch Adjustment_______________________
 A. Equipment
 (1)  Protractor - Commercially Available
 B. References
 (1)  
AMM 29-21-00/201, Ram Air Turbine (RAT) System

 (2)  
AMM 29-21-05/401, Ram Air Turbine (RAT) Deployment Actuator

 (3)  
AMM 29-21-10/401, Ram Air Turbine (RAT) Door Actuator Link

 C. Access
 (1)  
Location Zones 198 Wing to Body - Aft Lower Half (Right)

 (2)  
Access Panel
 198MR RAT Compartment

 D. Adjust the Limit Switch (Fig. 201)
 S 862-024
 (1)  
If it is not in the extended position, extend the RAT (AMM 29-21-00/201).

 S 032-025

 (2)  
Disconnect the lower end of the RAT deployment arm from the RAT strut housing (AMM 29-21-05/401).

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 ALL  ú ú 01 Page 205 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 032-026
 (3)  
Disconnect the RAT door link from the door or from the RAT strut housing (AMM 29-21-10/401).

 S 032-027

 (4)  
Disconnect the electrical connector at the top of the RAT strut housing, on the aft side.

 S 982-028

 (5)  
Push on the end of the hydraulic pump to move the RAT in the direction of the retracted position.

 S 222-029

 (6)  
Make sure the limit switch closes when the RAT strut housing is 13 | 1/2 degrees from the fully extended position.

 NOTE: Do a check for continuity, between the electrical
____ connector pins 5 and 7, to find when the switch closes.
 S 822-030
 (7)  If it is necessary, do these steps to adjust the limit switch:
　
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