C.  Remove the Limit Switch (Fig. 201)
 S 862-002
 (1)  
Extend the RAT (AMM 29-21-00/201).

 S 022-003

 (2)  
Remove the screws that attach the limit switch to the switch support bracket.

 S 022-004

 (3)  
Remove the limit switch and the switch plate from the switch support bracket.

 S 032-005

 (4)  
If the switch has inline electrical connectors,
 do these steps:

 (a)  Cut the heat-shrink tube from the inline electrical connectors.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-21-20
 ALL  ú ú 01 Page 201 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL

OUTBOARD SWIVEL VALVE
DEPLOYMENT SEE B
ACTUATOR
DOOR LINK
RAM AIR RAT STRUTTURBINE HOUSING(RAT)
SEE A
RAT
COMPARTMENT
DOOR
FWD INBD
RAM AIR TURBINE (RAT)
OUTBOARD SWIVEL VALVE
A
OUTBOARD SWIVEL VALVE
OUTBD FWD
ELECTRICAL STRUT
CONNECTOR
POSITION
LIMIT SWITCH
RAT STRUT SEE D E
HOUSING

FWD OUTBD SEE C
HOUSING
OUTBOARD SWIVEL VALVE
B
RAT STRUT HOUSING
C
RAT Strut Position Limit Switch Installation
Figure 201 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-21-20
 ALL  ú ú 01 Page 202 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL

OUTBOARD SWIVEL VALVE

STRUT POSITION LIMIT SWITCH

1

AIRPLANES WITH INLINE

E
ELECTRICAL CONNECTORS
RAT Strut Position Limit Switch Installation Figure 201 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-21-20
 ALL  ú ú 01 Page 203 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 (b)  Disconnect the inline electrical connectors.
 S 032-006
 (5)  If the limit switch does not have inline electrical connectors, do these steps:
 (a)  
Cut the wire from the switch terminal C, approximately 3.25 inches from the limit switch.

 (b)  
Cut the wire from the switch terminal NC, approximately 5 inches from the limit switch.

 TASK 29-21-20-422-007
 3.  Install the Limit Switch for the Ram Air Turbine (RAT)______________________________________________________
 A. References
 (1)  
AMM 29-21-00/201, Ram Air Turbine (RAT) System

 B.
Access

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

 (2)  
Access Panel
 198MR RAT Compartment

 C.
Install the Limit Switch (Fig. 201)

　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 液壓 CHAPTER 29 - HYDRAULIC POWER 2(111)