(3)
 Remove and discard the O-ring (2) from the filter (3).

 1EFF : ALL 1 27-54-53Page 427 1 1 May 01/04R 1 1 1CES 1

 Filter Figure 403/TASK 27-54-53-991-003
 1EFF : 1 1R 1CES  ALL  1 11 1 27-54-53 Page 428 May 01/04

 TASK 27-54-53-400-003
 Installation of the Filters of the Valve Blocks
 WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
 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.
 NOTE : The installation procedure for the filter of the valve block 24CV is
____ specified. The installation procedure for the filter of the valve block 23CV is almost the same. If there are differences in the procedures they are specified.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific container No specific warning notice No specific access platform 3.0 m (9 ft. 10 in.) No specific Torque Wrench : range 1.00 to 10.00 m.daN
 (8.00 to 75.00 lbf.ft) 98D27803000000 1 LOCKING TOOL - FLAP/SLAT CONTROL LEVER
 1EFF : ALL 1 27-54-53Page 429 1 1 May 01/04R 1 1 1CES 1

 B. Consumable Materials
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
No specific  lockwire, corrosion-resistant steel dia. 0.6 mm
 (0.24 in.)
R  Material No. 02-003 F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
 C. Expendable Parts
 -------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION  |IPC-CSN
 -------------------------------------------------------------------------------
O-ring  27-84-53 01 -060
 D. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
12-12-29-611-001  Fill the Hydraulic Fluid Reservoir with a Hand Pump
 12-12-29-611-002  Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart
 27-00-00-080-002  Removal of the Flap/Slat Control-Lever Locking Tool (98D27803000000)
 27-00-00-480-002  Installation of the Flap/Slat Control-Lever Locking
 Tool (98D27803000000)
 27-54-00-710-001  Operational Test of the Flap System
 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
 29-14-00-614-002  Pressurization of the Hydraulic Reservoirs through
 the Ground Connector
 32-12-00-410-001  Close the Main Gear Doors after Access
 27-54-53-991-003  Fig. 403 3. Job Set-up

__________ Subtask 27-54-53-860-060
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the LOCKING TOOL - FLAP/SLAT CONTROL LEVER (98D27803000000) is installed (Ref. TASK 27-00-00-480-002) on the slat/flap control lever.

 (2)
 Make sure that the access platform is in position at the main gear main door opening.

 (3)
 Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. TASK 29-00-00-864-001).

 (4)
 Make sure that the reservoirs of the Green and the Yellow hydraulic systems are depressurized (Ref. TASK 29-14-00-614-001).

 (5)
 Make sure that the warning notice is in position to tell persons not to pressurize the hydraulic systems.

 (6) Put a container in position below the Power Control Unit (PCU) (1). Subtask 27-54-53-865-057
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 6CV B07 121VU FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 8CV Q21
　
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