R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-31-44Page 463 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 ACTUATOR - MLG UPLOCK - REMOVAL/INSTALLATION

____________________________________________
 TASK 32-31-45-000-001
 Removal of the MLG Uplock Actuator
 WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
 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 : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
 1. Reason for the Job__________________ Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific blanking plugs
 No specific circuit breaker(s) safety clip(s)
 No specific warning notices
 No specific access platform 1.5 m (4 ft. 11 in.)
 No specific container 5 l (1.3208 USgal)

 1EFF : ALL 1 32-31-45Page 401 1 1 Feb 01/99 1 1 1CES 1

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
 External Power 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-864-001 Depressurize the Green Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power
 Transfer Unit (PTU) 32-00-00-860-001 Flight Configuration Precautions 32-12-00-010-001 Open the Main Gear Doors for Access 32-31-45-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 32-31-45-860-050
 A. Aircraft Maintenance Configuration
 (1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002)
 (2)
 Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001). Subtask 32-31-45-010-050

 B. Get Access

 (1)
 Open the applicable MLG door (Ref. TASK 32-12-00-010-001). Subtask 32-31-45-869-050

 C. Disconnection of the PTU Isolation Coupling
 (1)
 Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).

 (2)
 Disconnect the PTU isolation coupling (Ref. TASK 29-23-00-860-001).

 (3)
 Obey the flight configuration precautions (Ref. TASK 32-00-00-860-001).

 1EFF : ALL 1 32-31-45Page 402 1 1 Feb 01/99 1 1 1CES 1 Subtask 32-31-45-865-050

 D. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
 Subtask 32-31-45-941-050
 E. Safety Precautions
 (1)
 Put the access platform in position..

 (2)
 Put the container below the uplock assembly 2509GM (2510GM) to collect the hydraulic fluid leakage.

 (3)
 Put the warning notices in position to tell persons not to pressurize the Green hydraulic system: - on the panel 40VU in the cockpit, - on the ground service panel of the Green hydraulic system.

 4. Procedure
_________ (Ref. Fig. 401/TASK 32-31-45-991-001) Subtask 32-31-45-020-050
 A. Removal of the MLG Uplock Actuator
 (1)
 Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).

 (2)
 Disconnect the hydraulic hoses (4) and (5) from the actuator (1).

 (3)
 Put blanking plugs on the disconnected line ends.

 (4)
 Remove the bolts (3) and the washers (2).

 (a) Remove the actuator (1).
 1EFF : ALL 1 32-31-45Page 403 1 1 Feb 01/99 1 1 1CES 1

 MLG Uplock Actuator
 Figure 401/TASK 32-31-45-991-001
 1EFF :  ALL  1  32-31-45 Page 404 
1  1  Feb 01/99
　
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