(5)
 De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).

 TASK 27-14-00-220-002
 Check of the Aileron Servo Controls Fluid Reserve Piston Position with the Hydraulic Reservoirs Depressurized
 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 GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
 GEAR.

 1. Reason for the Job
__________________
 Refer to the MPD TASK: 271400-03
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific rule
 No specific warning notices
 No specific access platform 3.6 m (11 ft. 10 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power R 29-10-00-863-003 Pressurize the Blue Hydraulic System with a Ground R Power Supply
 29-10-00-864-003 Depressurize the Blue Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
 the Ground Connector

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-23-00-863-001 29-23-00-864-001 29-24-00-863-001 29-24-00-864-001 27-14-00-991-003  Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric PumpDepressurize the Green and Yellow Hydraulic Systems after Operation of the PTUPressurize the Yellow Hydraulic System with the Electric PumpDepressurize the Yellow Hydraulic SystemFig. 602
 3. Job Set-up__________
 Subtask 27-14-00-010-054
 A. Get access
 (1) Put the access platform in position.
 (2) Open the access doors 575KB, 675KB.
 Subtask 27-14-00-860-052
 B. Aircraft Maintenance Configuration
R  (1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002). 
R  (2) On the center pedestal, make sure that the speedbrake control lever is in the RET position. 
R  (3) Pressurize the aircraft hydraulic systems (Ref. TASK 29-23-00-863-001) (Ref. TASK 29-24-00-863-001) (Ref. TASK 29-10-00-863-003). 
R  (4) On each servo control (1), make sure that the indicator of the fluid-reserve (2) piston is in the maximum extended position. (Ref. Fig. 602/TASK 27-14-00-991-003) 
R  (5) Depressurize the aircraft hydraulic systems (Ref. TASK 29-23-00-864-001) (Ref. TASK 29-24-00-864-001) (Ref. TASK 29-10-00-864-003). 
R  (6) Depressurize the hydraulic reservoirs (Ref. TASK 29-14-00-614-001).

 Aileron Servo Control
 Figure 602/TASK 27-14-00-991-003
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R (7) Put warning notices in position to tell persons not to pressurize the
 hydraulic systems:
 - on the ground service panels,
 -in the cockpit, on the HYD section of the overhead panel 40VU.
R  (8) Put a warning notice on the access door 195BB to tell persons not to pressurize the hydraulic reservoirs.
 4. Procedure
_________
 (Ref. Fig. 602/TASK 27-14-00-991-003)
 Subtask 27-14-00-220-053
 A. Check of the Position of the Fluid Reserve Piston of the Aileron Servo Controls
 (1) After three hours, on the fluid reserve (2), with a rule make sure that the indicator does not retract more than 32 mm (1,2598 in.).
 -If the indicator retracts more than 32 mm (1.2598 in.), the pressure and return line closing valves are not sealed. You must remove the servo control (1) for repair.
 5. Close-up
________
 Subtask 27-14-00-410-054

 A. Close access
 (1) Close the access doors 575KB, 675KB.
　
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