S 864-084
(6)
Remove the hydraulic power if it is not necessary (AMM 29-11-00/201).
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757 MAINTENANCE MANUAL
RAM AIR TURBINE (RAT) SAFETY VALVE - REMOVAL/INSTALLATION
_________________________________________________________
1. General_______
A. This procedure contains two tasks, one to remove and one to install the safety valve for the ram air turbine (RAT).
TASK 29-21-14-024-001
2. Remove the Safety Valve for the Ram Air Turbine (RAT)_____________________________________________________
A. References
(1)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(2)
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 Safety Valve (Fig. 401)
S 864-002
(1)
Extend the RAT (AMM 29-21-00/201)
S 864-003
(2)
Remove the pressure from the right hydraulic system and reservoir (AMM 29-11-00/201).
S 034-004
(3)
Disconnect the hydraulic lines from the safety valve.
(4)
Put caps on the hydraulic lines.
(5)
Disconnect the electrical connector from the safety valve.
S 034-007
(6)
Remove the bolts and washers that attach the safety valve to the mounting bracket.
S 034-005
S 034-006
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MAINTENANCE MANUAL
AFT BULKHEAD OF THE RIGHT WHEEL WELL
AFT BULKHEAD OF THE SAFETY VALVE
RIGHT WHEEL WELL
FOR THE RAM SEE A
AIR TURBINE (RAT)
SEE H
PRESSURE LINE FROM
THE RIGHT HYDRAULIC
SYSTEM
FWD
MOUNTING
BRACKET
SAFETY
VALVE
AFT BULKHEAD OF THE RIGHT WHEEL WELL
RETURN LINE
TO THE RIGHT
A
HYDRAULIC
SYSTEM
HYDRAULIC LINE TO THE RAT ACTUATOR
ELECTRICAL CONNECTOR
BOLT AND WASHER
(3 LOCATIONS)
FWD
SAFETY VALVE
B
Safety Valve Installation Figure 401
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757 MAINTENANCE MANUAL
S 024-008
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