R 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
Subtask 29-13-44-010-050
B. Open the access panel 196BB.
Subtask 29-13-44-860-050
C. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Put the warning notices in position to tell persons not to pressurize the Yellow hydraulic system:
-in the cockpit on the hydraulic section 40VU of the overhead panel. - on the ground service panel of the Yellow hydraulic system.
(2)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(3)
Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(4)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
(5)
Disconnect the isolation coupling of the the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-001).
(6)
Put the container below the filter to collect any hydraulic fluid.
4. Procedure
_________
(Ref. Fig. 301/TASK 29-13-44-991-001) Subtask 29-13-44-020-050
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 (2) stays in the filter
____
head (1). If it does, pull it out.
1EFF : ALL 1 29-13-44Page 303 1 1 May 01/04R 1 1 1CES 1
R LP Filter Figure 301/TASK 29-13-44-991-001
1EFF : 1 1 1CES ALL 1 111 29-13-44 Page 304 May 01/04
(5) Remove and discard the O-ring (2) from the outside of the filter bowl (3).
Subtask 29-13-44-560-050
B. Preparation for Installation
R R (1) Lubricate the new O-ring (2) with HYDRAULIC FLUIDS (Material No. 02-003) and install it on the filter bowl (3).
R R (2) Do a check of the correct condition and installation of the O-ring (6).
R NOTE : The O-ring (6) is part of the filter element (4).____
R (3) Lubricate the O-ring (6) in the new filter element (4) with HYDRAULIC FLUIDS (Material No. 02-003).
R (4) Lubricate the threads of the filter bowl 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 29-13-44-420-050
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 R (4) Install the filter element (4) together with its O-ring (6) in the filter bowl (3).
(5) Engage the filter bowl (3), together with the O-ring (2), in the filter head (1) and tighten it.
NOTE : Tighten the filter bowl (3) with your hands only.____
Subtask 29-13-44-865-051
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 3801GX, 3802GX, 3803GX.
Subtask 29-13-44-790-050
E. Test of the Filter Assembly
(1)
Remove the warning notice(s).
(2)
Pressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-002).
(3)
Pressurize the Yellow hydraulic system (Ref. TASK 29-10-00-863-002).
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