(4)
Make sure that the speed-brake control lever on the center pedestal is in the RET position.
(5)
Make sure that the two side stick controllers are in the neutral position and that there is no priority on them.
(6)
Do an automatic start of engine 1 (Ref. TASK 71-00-00-710-003), or do the dry motoring of engine 1 (Ref. TASK 71-00-00-710-001).
(7)
Make sure that the pressure in the Green hydraulic system is 3000 psi (206.8427 bar).
(8)
Extend and retract the spoilers (Ref. TASK 27-64-00-710-001). NOTE : Operate only the spoilers and ignore the specific test
____ procedure of the system which is described in the referenced task.
(9)
Move one of the two side stick controllers not less than five times to the left and then to the right position to operate the ailerons.
NOTE : When you do the dry motoring, obey the starter limits.
____
(10)
Pull and push the side stick controller not less than five times to operate the elevators.
(11)
Put the side stick controller to the neutral position.
(12)
Push the left rudder pedal (on one of the two rudder pedal pairs) and then the right rudder pedal not less than five times fully forward to operate the rudder.
(13)
Put the rudder pedals to the neutral position.
(14)
Turn the pitch-trim control wheel to the nose-down and then to the nose-up position to operate the trimmable horizontal stabilizer.
(15)
Turn the pitch-trim control wheel to the 0 position.
(16)
Shut down the engine 1 (Ref. TASK 71-00-00-710-028), or stop the dry motoring of the engine 1 (Ref. TASK 71-00-00-710-001).
(17)
Do the subsequent steps to make sure that there is no air in the hydraulic system:
(a)
Do a check of the fluid level of the Green reservoir.
(b)
If it is necessary to add fluid:
(c)
Make sure that the air pressure in the reservoir of the Green hydraulic system is not less than 50 psi (3.4473 bar). If necessary, pressurize the reservoir (Ref. TASK 29-14-00-614-002).
1_ Depressurize the reservoir (Ref. TASK 29-14-00-614-001).
2_ Keep the reservoir depressurization valve (1087GM) open and
fill the reservoir (Ref. TASK 12-12-29-611-002) or (Ref. TASK
12-12-29-611-001).
1EFF : ALL 1 29-00-00Page 218 1 1 Nov 01/04R 1 1 1CES 1
(d)
Read the gage of the Green reservoir and record the fluid level.
(e)
Depressurize the reservoir of the Green hydraulic system. (Ref. TASK 29-14-00-614-001).
(f)
After 5 minutes, read the gage again and record the fluid level.
(g)
Compare the two levels.
(h)
If the difference between the two levels is more than 2 liters, do the bleeding procedure again.
NOTE : Do not do the bleeding procedure more than two times.
____
(i) If the result is not satisfactory after you do the bleeding two times you must:
-
do the bleeding procedure of the Green hydraulic system upstream of the PTU (Ref. TASK 29-00-00-870-002)
-
do the bleeding procedure of the Green hydraulic system upstream of the engine pump (Ref. TASK 29-00-00-870-001).
5. Close-up
________
Subtask 29-00-00-860-076
A. Put the aircraft back to the serviceable condition.
(1)
Make sure that the level of the hydraulic fluid in the reservoir of the Green hydraulic system is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).
(2)
Make sure that the air pressure in the reservoir of the Green hydraulic system is not less than 50 psi (3.4473 bar). If necessary pressurize the reservoir (Ref. TASK 29-14-00-614-002).
1EFF : ALL 1 29-00-00Page 219 1 1 Nov 01/04R 1 1 1CES 1
TASK 29-00-00-870-004
Bleeding Procedure of the Yellow Hydraulic System Upstream of the Engine Pump
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE CLEAR.
_______ MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE.
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM HYDRAULIC POWER 液壓1(50)
