B. Referenced Information

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
 Configuration before Maintenance Action 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-22-00-869-001 Extension of the Ram Air Turbine (RAT) on the Ground 32-12-00-010-001 Open the Main Gear Doors for Access 29-22-54-991-001 Fig. 401
 3. Job Set-up
__________
 Subtask 29-22-54-860-050
 A. Aircraft Maintenance Configuration
 WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
 (1)
 Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).

 (2)
 Put the warning notice(s) in position to tell persons not to pressurize the Blue hydraulic system:

 -In the cockpit on the hydraulic section 40VU of the overhead panel,
 -On the ground service panel of the Blue hydraulic system.

 (3)
 Put the safety barriers in position.

 (4)
 Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).

 (5)
 Depressurize the reservoir of the Blue hydraulic system (Ref. TASK 29-14-00-614-001).

 (6)
 Extend the Ram Air Turbine (RAT) (Ref. TASK 29-22-00-869-001).

 (7)
 Put the container below the hydraulic connections to collect hydraulic fluid.

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 B. Get Access
 (1) Open the left-hand main gear main door (Ref. TASK 32-12-00-010-001).
 (2)
 Open the access door 197EB
 Subtask 29-22-54-865-050

 C.
 Open, safety and tag this(these) circuit breaker(s):

 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------106VU CSM/G /EV/MAN/SPLY 6XE B04 121VU HYDRAULIC/RAT/SPLY/EXTN/SOL1 2803GE P33

R **ON A/C 001-049, 051-061, 101-102, 201-202,
 121VU HYDRAULIC/RAT/CTL 2801GE P32 R **ON A/C 103-105, 203-203,
 121VU HYD/RAT/CTL 2801GE P32 R **ON A/C 001-049, 051-061, 101-105, 201-203,
 4. Procedure
_________
 (Ref. Fig. 401/TASK 29-22-54-991-001)
 Subtask 29-22-54-020-050

 A. Removal of the RAT Jack Control Module CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
 (1)
 Disconnect the electrical connector (8) from the receptacle (6).

 (2)
 Put blanking caps on the disconnected electrical connectors.

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 RAT Jack Control Module
 Figure 401/TASK 29-22-54-991-001

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 (3)
 Loosen the union nut (7) and remove the hose from the retract port (9).

 (4)
 Loosen the union nut (13) from the HP port (12).

 (5)
 Loosen the union nuts (2) and (15) from the T-fitting (1).

 (6)
 Loosen the union nut (14) from the LP port (3) and remove the
 T-fitting.

 (7)
 Hold the jack control module (4).

 (8)
 Remove the nuts (5), the washers (10) and the bolts (11).

 (9)
 Remove the jack control module (4).

 (10)
 Put blanking plugs on the disconnected line ends.

 (11)
 Put blanking caps on the ports of the jack control module (4).

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 TASK 29-22-54-400-001 Installation of the RAT Jack Control Module (2455GE) WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
 -
THE FLIGHT CONTROLS

 -
THE FLIGHT CONTROL SURFACES

 -
THE LANDING GEAR AND THE RELATED DOORS

 -COMPONENTS THAT MOVE. WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
 WARNING : MAKE SURE THAT THE RAT TRAVEL RANGE IS CLEAR BEFORE YOU
　
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