(b)
Move the limit switch vertically until it closes when it touches the larger diameter of the blade lock plunger.
(c)
Tighten the screws which attach the limit switch to the switch cover to 2.5-3.5 pound-inches.
(d)
Loosen the screws which attach the switch cover to the RAT strut housing.
(e)
Move the limit switch horizontally until it closes when the RAT strut housing is 13 |1/2 degrees from the fully extended position.
(f)
Tighten the screws which attach the switch cover to the RAT strut housing to 32-36 pound-inches.
S 432-031
(8)
Connect the electrical connector at the top of the RAT strut housing.
(9)
Connect the RAT door link (AMM 29-21-10/401).
S 432-032
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A
757 MAINTENANCE MANUAL
S 432-033
(10)
Connect the RAT deployment arm to the RAT strut housing (AMM 29-21-05/401).
S 862-034
(11)
Retract the RAT (AMM 29-21-00/201).
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757 MAINTENANCE MANUAL
RAM AIR TURBINE (RAT) TACHOMETER AND GROUND MANUAL SWITCH -
___________________________________________________________ REMOVAL/INSTALLATION
____________________
1. General_______
A. This procedure contains two tasks, one to remove and one to install the tachometer and ground manual switch for the ram air turbine (RAT).
TASK 29-21-51-024-001
2. Remove the Tachometer and Ground Manual 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. Remove the Tachometer and Ground Manual Switch (Fig. 401)
S 864-002
(1)
Extend the RAT (AMM 29-21-00/201).
S 034-003
(2)
Remove the screws for the fairing panel.
S 034-004
(3)
Remove the fairing panel.
S 034-005
(4)
Disconnect the electrical connectors from tachometer and ground manual switch.
(5)
Install caps on the electrical connectors.
(6)
Remove the bolts from the tachometer and ground manual switch.
S 024-008
(7)
Remove the tachometer and ground manual switch from the mounting bracket.
S 034-006
S 034-007
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