(2)
Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(3)
Make sure that the reservoir of the Green hydraulic system is depressurized. (Ref. TASK 29-14-00-614-001).
(4)
Make sure that the warning notices are 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.
(5)
Make sure that one main door of the main gear is open (Ref. TASK 32-12-00-010-001).
(6)
Make sure that the access platform is in position at the main door of the main gear.
(7)
Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. TASK 29-23-00-860-001).
(8)
Make sure that the container is in position below the location of the system pressure switch.
Subtask 29-32-12-865-056
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU FLIGHT CONTROLS/ELAC1/NORM/SPLY 15CE1 B11 R 105VU FLIGHT CONTROLS/ELAC2/STBY SPLY 16CE2 A02 R 105VU FLT CTL/ELAC1/STBY SPLY 16CE1 A01 R
121VU FLIGHT CONTROLS/SEC3/SPLY 21CE3 Q19 121VU FLIGHT CONTROLS/SEC2/SPLY 21CE2 Q18 121VU FLIGHT CONTROLS/ELAC2/NORM/SPLY 15CE2 R20
4. Procedure
_________
(Ref. Fig. 401/TASK 29-32-12-991-001) Subtask 29-32-12-420-050
A. Installation of the System Pressure Switch
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Lubricate the new O-ring (3) with HYDRAULIC FLUIDS (Material No. 02-003).
(4)
Remove the blanking plugs from the ports of the manifold.
(5)
Put the new O-ring (3) in position on the system pressure switch (2).
(6)
Install the system pressure switch (2) in the manifold (4) and TORQUE to between 3.186 and 3.470 m.daN (23.49 and 25.58 lbf.ft).
(7)
Safety the system pressure switch (2) with lockwire, corrosion-resistant steel 0.8 mm (0.032 in.)
(8)
Install the clamp (9), the bonding jumper (7), the screw (8), the washer (6) and the nut (5) at the system pressure switch (2) (Ref. TASK 20-28-00-912-004).
(9)
Remove the blanking cap from the electrical connector.
(10)
Make sure that the electrical connectors are clean and in the correct condition.
(11)
Connect the electrical connector (1) to the system pressure switch (2).
Subtask 29-32-12-865-053
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 15CE1, 15CE2, 16CE1, 16CE2, 21CE2, 21CE3
Subtask 29-32-12-790-050
C. Leak Test of the Hydraulic Connections
(1)
Pressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-002).
(2)
Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001).
(3)
Examine the connection of the system pressure switch and make sure that there are no leaks.
(4)
Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001). Subtask 29-32-12-710-050
D.
Do the operational test of the hydraulic pressure indicating system
(Ref. TASK 29-32-00-710-001).
5. Close-up
________ Subtask 29-32-12-860-052
A. Put the aircraft back to the serviceable condition.
(1)
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