D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-863-001 Pressurize the Green Hydraulic System 29-10-00-864-001 Depressurize the Green 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 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) 29-23-00-860-002 Connection of the Isolation Coupling of the Power
Transfer Unit (PTU) 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access 29-11-44-991-001 Fig. 301
3. Job Set-up
__________
Subtask 29-11-44-860-050
A. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Put the warning notices 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.
(3)
Open one of the main doors of the main gear (Ref. TASK 32-12-00-010-001).
(4)
Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(5)
Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).
(6)
Disconnect the isolation coupling of the the power transfer unit (PTU) (Ref. TASK 29-23-00-860-001).
(7)
Put the access platform in position.
(8)
Put a container below the filter to collect any hydraulic fluid.
4. Procedure
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(Ref. Fig. 301/TASK 29-11-44-991-001) Subtask 29-11-44-020-050
A. Removal of the Filter Element
(1)
Cut and remove the lockwire between the filter bowl (3) and the filter head (1).
(2)
Remove the filter bowl (3) together with the filter element (4).
(3)
Remove the filter element (4) from the filter bowl (3).
(4)
Discard the filter element (4). NOTE : It is possible that the filter element (4) stays in the filter
____
head (1). If it does, to pull it out.
(5)
Remove and discard the O-ring (2) from the outside of the filter bowl (3).
Subtask 29-11-44-560-050
B. Preparation for Installation
(1)
Lubricate the new O-ring (2) with HYDRAULIC FLUIDS (Material No. 02-003) and install it on the filter bowl.
(2)
Do a check of the correct condition and installation of the O-ring (6).
NOTE : The O-ring (6) is part of the filter element (4).
____
(3) Lubricate the O-ring (6) in the new filter element (4) with HYDRAULIC FLUIDS (Material No. 02-003).
1EFF : ALL 1 29-11-44Page 303 1 1 May 01/04R 1 1 1CES 1
R LP Filter Figure 301/TASK 29-11-44-991-001
1EFF : 1 1 1CES ALL 1 111 29-11-44 Page 304 May 01/04
R (4) Lubricate the threads of the filter bowl (3) with HYDRAULIC FLUIDS
(Material No. 02-003). R (5) If the red clogging indicator (5) is out, push it in to set it again. Subtask 29-11-44-420-050
C. Installation of the Filter Element
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Do a check of the filter element (4) and make sure that it is clean and not damaged.
R (4) Install the filter element (4) together with its O-ring (6) in the R filter bowl (3).
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