-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
55-33-13-410-002 Closing/Installation of the Trailing Edge Access-Panels 325EL, 325ER, 325DL, 325DR, 325CL, 325CR, 325BL and 325BR
3. Job Set-up
__________ Subtask 27-24-51-860-056-A
A. Aircraft Maintenance Configuration
(1)
Make sure that the access platform is in position.
(2)
Make sure that the access panels 325CL, 325CR at the trailing edge of the vertical stabilizer are opened (Ref. TASK 55-33-13-010-002).
(3)
Make sure that the 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, Blue and Yellow hydraulic systems are depressurized. (Ref. TASK 29-14-00-614-001).
(5)
Make sure that the warning notices are in the flight compartment to tell persons not to operate the flight controls.
(6)
Make sure that the container is in position below the servo control.
4. Procedure
_________ Subtask 27-24-51-910-053
A. Preparation for the Installation
(1)
Make sure that the servo controls are in the correct condition and have no dammage.
(2)
Clean the component interface and/or the adjacent area.
(3)
Do an inspection of the component interface and/or the adjacent area.
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Subtask 27-24-51-420-052
B. Installation of the Filter NOTE : The installation of the filter (16) in the upper servo control
____ 2025GM (5) only is described. The installation of the filter (16) in the center 3025GM and lower 1025GM servo controls (5) is similar.
(1)
Put a new packing (15) on the new filter (16).
(2)
Install the filter (16) in the valve block (14).
(3)
TORQUE the filter (16) to between 2.0 and 2.2 m.daN (14.74 and 16.22 lbf.ft).
(4)
Safety the filter (16) with lockwire, corrosion-resistant steel, dia
0.8 mm (0.032 in.) to the valve block (14).
(5)
Clean the seal area with CLEANING AGENTS (Material No. 11-004) to remove all signs of hydraulic fluid.
(6)
Apply SEALANTS (Material No. 09-004) to the connection of the filter
(16) and the valve block (14). Subtask 27-24-51-870-051
C. Bleeding Procedure of the Servo Controls.
(1)
Pressurize the Green, Blue and Yellow hydraulic systems (Ref. TASK 29-10-00-863-001) (Ref. TASK 29-10-00-863-002) (Ref. TASK 29-10-00-863-003).
(2)
Pressurize the reservoirs of the hydraulic systems (Ref. TASK 29-14-00-614-002).
(3)
Operate the left and the right rudder pedals to move the rudder surface.
(4)
Do this ten times and then put the rudder pedals back to the neutral position.
(5)
Make sure that there are no leaks at the filter connection to the valve block of the servo controls.
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(6) Depressurize the Green, Yellow and Blue hydraulic systems (Ref. TASK 29-10-00-864-001) (Ref. TASK 29-10-00-864-002) (Ref. TASK 29-10-00-864-003). ________
5. Close-up
Subtask 27-24-51-410-051-A
A. Close Access
(1)
Remove the container.
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
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