(2)  
Extend the RAT (AMM 29-21-00/201).

 S 032-015

 (3)  
Remove the lockwire on the limit switch.

 S 832-016

 (4)
Adjust the limit switch until Dimension A is 0.60 | 0.03 inch.

 S 032-017

 (5)  
Disconnect the door link from the RAT strut housing
 (AMM 29-21-10/401).

 S 862-018

 (6)  
Retract the RAT (AMM 29-21-00/201).

 S 222-019
 WARNING: HOLD THE RAT GROUND SWITCH IN THE STOW POSITION WHILE YOU
_______ MEASURE THE NECESSARY DISTANCE. ACCIDENTAL RAT DEPLOYMENT CAN CAUSE INJURY TO PERSONS.
 (7)  
Measure the distance between the plunger and the arm which operates the limit switch.

 S 862-020

 (8)  
Extend the RAT (AMM 29-21-00/201).

 S 832-021

 (9)  
Adjust the limit switch closer to the arm, which operates the limit switch, by the distance that follows:

 (a)  The distance between the plunger and the arm plus 0.23 inch.

 (10)
 Tighten the nuts to 100-150 pound-inches.

 S 432-022
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-21-17
 ALL  ú ú 01 Page 204 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 432-023
 (11)
 Install a lockwire on the nuts.

 S 432-024

 (12)
 Connect the door link to the RAT strut housing (AMM 29-21-10/401).

 S 862-025

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

 S 212-026

 (14)
 Make sure the RAT UNLOCKED light on the overhead panel, P5, is on while you retract the RAT.

 S 212-027

 (15)
 Make sure the RAT UNLOCKED light on the P5 panel is off with the conditions that follow:

 (a)
The RAT is fully retracted.

 (b)
The RAT ground manual switch is in the neutral position.

 S 832-028
 (16)
 If the RAT UNLOCKED light stays on, do the adjustment for the limit switch again.

 (17)
 Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 862-029
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-21-17
 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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

 RAM AIR TURBINE (RAT) WIRE HARNESS - REMOVAL/INSTALLATION
_________________________________________________________
 1.  General
_______
 A.  This procedure contains two tasks, one to remove and one to install the wire harness for the ram air turbine (RAT).
 B.  You can remove the wire harness with the speed sensor and the limit switches, for the RAT blade lock and the RAT strut position, attached. You can also remove the wire harness without these components attached.
 TASK 29-21-18-424-001
 2.  Remove the Wire Harness for the Ram Air Turbine (RAT)
_____________________________________________________
 A.  References
　
中國航空網(wǎng) m.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(102)