(8)
Make sure that the hydraulic line end-fittings are serviceable.
(9)
Apply the HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the line end-fittings.
(10)
Remove the blanking plug and connect the pressure pipe (19) to the pump outlet port.
(11)
TORQUE the union nut (18) to between 2.9 and 3.2 m.daN (21.38 and
23.59 lbf.ft).
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(12) Remove the blanking plug and connect the case drain pipe (6) to the pump.
(a) Make sure that the routing of the case drain pipe (6) is below the pressure pipe (19).
(b) Make sure that the clearance between the case drain pipe (6) and the pressure pipe (19) is correct (Ref. TASK 20-23-14-910-001).
(13) TORQUE the union nut (7) to between 2.9 and 3.2 m.daN (21.38 and 23.59 lbf.ft).
R (14) Apply HYDRAULIC FLUIDS (Material No. 02-003) to the new O-ring (28).
R (15) Remove the blanking plug from the suction pipe (1).
R (16) Install the new O-Ring (28) in the union nut (2).
R R (17) Connect the suction pipe (1) to the pump inlet port.
R (18) TORQUE the union nut (2) to between 9.7 and 10.7 m.daN (71.53 and 78.90 lbf.ft).
R (19) Connect the seal drain pipe (16) to the pump.
R (20) TORQUE the union nut (17) to between 1.5 and 1.7 m.daN (11.06 and 12.53 lbf.ft).
R (21) Connect the air hose (5) to the pump (3) and install and tighten the clamp (4).
R (22) Remove the blanking caps from the electrical connector (14) and the receptacle.
R (23) Make sure that the electrical connectors are clean and in the correct condition.
R (24) Connect the electrical connector (14) and safety it with the lockwire, MISCELLANEOUS (Material No. 19-010).
Subtask 29-24-51-860-053
C. Preparation for the Test
(1)
Pressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-002).
(2)
Energize the electrical circuits (Ref. TASK 24-41-00-861-002).
(3)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
(4)
On the ECAM control panel on the center pedestal, press the HYD pushbutton switch (P/BSW). Make sure that the HYD page is shown on the lower (system) display of the ECAM.
(5)
Make sure that the ECAM does not show any of these conditions:
-
Low air pressure in the Yellow reservoir,
-
Low fluid level in the Yellow reservoir.
(6)
If necessary, pressurize the reservoir (Ref. TASK 29-14-00-614-002).
(7)
If necessary, add fluid to the reservoir (Ref. TASK 12-12-29-611-001).
Subtask 29-24-51-865-052
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 3801GX, 3802GX, 3803GX
Subtask 29-24-51-710-050
E. Do this test:
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the overhead panel 40VU On the overhead panel 40VU
-Push the pushbutton switch - The legend ON comes on
YELLOW/ELEC PUMP and release The Yellow electric pump starts
2. On the center pedestal on the On the lower display unit of the ECAM ECAM control panel system
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-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
-Push the HYD pushbutton switch and release
3.
Visually examine the hydraulic connections and the Yellow electric pump and make sure that there are no leaks.
4.
On the overhead panel 40VU
-Push the YELLOW/ELEC PUMP pushbutton switch and release
5. Close-up
________ Subtask 29-24-51-860-051
-The HYD page is shown, the YELLOWpressure indication shows 3000 psi
NOTE : If the ECAM system is not
____ available, you can check the pressure of 3000 +/-100 psi on the Yellow power accumulator.
The Yellow electric pump stops
A. Put the aircraft back to the serviceable condition.
(1)
Remove the container from under the pump.
(2)
Connect the PTU isolation coupling (Ref. TASK 29-23-00-860-002).
(3)
Do the EIS stop procedure
(Ref. TASK 31-60-00-860-002).
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