Subtask 29-11-21-865-052
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1881GP, 1701GK, 1702GK.

 VALVE - CHARGING, GREEN POWER ACCUMULATOR (1071GM) - REMOVAL/INSTALLATION
_________________________________________________________________________ TASK 29-11-22-000-001 Removal of the Accumulator-Gas Charging Valve (1071GM) WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific 1 ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE No specific 1 CAP - BLANKING No specific 1 PLUG - BLANKING No specific 1 WARNING NOTICE
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
 Configuration before Maintenance Action 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) 32-12-00-010-001 Open the Main Gear Doors for Access
 **ON A/C 001-001, 051-052,
 29-11-22-991-001 Fig. 401 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------

R **ON A/C 002-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 29-11-22-991-001-A Fig. 401A
 **ON A/C ALL
 3. Job Set-up
__________
 Subtask 29-11-22-865-050
 A. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST 1881GP N35 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
 Subtask 29-11-22-860-050
 B. Aircraft Maintenance Configuration
 (1)
 Put the WARNING NOTICE in position to tell persons not to pressurize the Green hydraulic system:

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

 (2)
 Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).

 (3)
 Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).

 (4)
 Open the left main door of the main gear (Ref. TASK 32-12-00-010-001).

 (5)
 Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the left door of the main gear.

 (6)
 Disconnect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-001).

 4. Procedure
_________
 **ON A/C 001-001, 051-052,

 (Ref. Fig. 401/TASK 29-11-22-991-001) R **ON A/C 002-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 401A/TASK 29-11-22-991-001-A)
 **ON A/C ALL

 Subtask 29-11-22-614-050
 A. Depressurize the Power Accumulator (1070GM)
 (1)
 Remove the endcap (6) from the charging-valve (4).

 (2)
 Turn the nut (5) carefully to the OPEN position and release the nitrogen pressure.

 Subtask 29-11-22-020-050
 B. Removal of the Gas Charging-Valve (1071GM)
 (1)
 Cut, remove and discard the lockwire from the gas charging valve (4).

 (2)
 Remove the gas charging-valve (4).

 (3)
 Install the PLUG - BLANKING in the adapter (2).

 (4)
 Install the CAP - BLANKING on the gas charging-valve (4).

 Gas Charging Valve
 Figure 401/TASK 29-11-22-991-001

 Gas Charging Valve
 Figure 401A/TASK 29-11-22-991-001-A

R 1EFF : 002-049, 053-099, 101-149, 151-199, 1 29-11-22Page 405 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1 TASK 29-11-22-400-001

 Installation of the Accumulator-Gas Charging Valve (1071GM)
　
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