(h)
Install the electrical connector on the RAT manual Q switch.
(i)
Remove the pressure from the right hydraulic system and reservoir (AMM 29-11-00/201).
D. Remove the Control Valve (Fig. 401)
S 034-004
(1)
Disconnect the electrical connector from the valve motor.
S 034-005
(2)
Disconnect the hydraulic lines from the control valve.
S 034-006
(3)
Put caps on the hydraulic lines.
S 034-007
(4)
Remove the bolts and washers that hold the control valve to the mounting bracket.
(5)
Remove the control valve.
S 024-008
TASK 29-21-04-424-009
3. Install the Control Valve for the Ram Air Turbine (RAT)
_______________________________________________________
A. Consumable Materials
(1) D00054 Hydraulic System Lubricant - MCS 352
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A
757
MAINTENANCE MANUAL
AFT BULKHEAD OF THE
RIGHT WHEEL WELL
SEE A
MOUNTING
BRACKET
RETURN LINE TO THE RIGHT HYDRAULIC SYSTEM
RETURN LINE FROM THE RAT ACTUATOR
BOLT AND WASHER (3 LOCATIONS) PRESSURE LINE TO THE RATFWD ACTUATOR
CONTROL VALVE
B
CONTROL VALVE FOR
THE RAM AIR TURBINE (RAT) ACTUATOR
SEE B
PRESSURE LINE FROM THE RIGHT HYDRAULIC SYSTEM
VALVE VALVE MOTOR FWD
AFT BULKHEAD OF THE RIGHT WEEL WELL
A
ELECTRICAL CONNECTOR
Control Valve Installation
Figure 401
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A
757
MAINTENANCE MANUAL
B. References
(1)
AMM 12-12-01/301, Hydraulic Systems
(2)
AMM 12-25-01/301, Exterior Cleaning
(3)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(4)
AMM 29-21-00/201, Ram Air Turbine (RAT) System
C.
Access
(1)
Location Zones
198 Wing to Body - Aft Lower Half (Right)
211/212 Control Cabin
(2)
Access Panel
198MR RAT Compartment
D.
Install the Control Valve (Fig. 401)
S 434-010
(1)
Set the control valve on the mounting bracket and install the bolts and washers.
S 644-011
(2)
Apply hydraulic lubricant or hydraulic fluid to the O-rings and the threaded fittings.
S 434-012
(3)
Remove the caps and connect the hydraulic lines to the control valve.
S 434-013
(4)
Connect the electrical connector to the valve motor.
S 864-014
(5)
Pressurize the right hydraulic system and reservoir
(AMM 29-11-00/201).
(6)
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