Subtask 12-36-29-611-059
A. Fluid Change without Hydraulic Lines of the Engine Driven Pump (EDP) (Ref. detail A)
CAUTION : DO NOT LET THE HYDRAULIC FLUID IN THE GROUND POWER CART
_______ DECREASE BELOW THE LOW LEVEL. DO NOT LET THE AUXILIARY HYDRAULIC RESERVOIR BECOME TOO FULL.
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Operate the hydraulic power cart. NOTE : Increase the flow rate and the pressure as necessary.
____
(3)
In the cockpit, operate the flight controls. 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.
(a) On the panel 11VU, move the GND SPLRS ARMED lever to the FULL position and then to the RET position. Do this step 3 times.
NOTE : The spoilers 1, 2, 4 and 5 LH and RH operate.
____
(b) On the panel 18VU or 19VU, move the side stick fully forward and then fully rearward. Do this step 3 times.
NOTE : The elevators operate.
____
(c) At the captain or first officer position, push the LH pedal fully forward (and release it) then the RH pedal fully forward (and release it) . Do this step 3 times.
NOTE : The rudder operates.
____
(d) On the panel 114VU, move the flap/slat lever to the FULL position and then to the 0 deg position. Do this step 2 times.
NOTE : The flaps and slats operate.
____
(e) On the center pedestal, turn one of the pitch-trim control wheels to the DN stop and then to the UP stop. Do this step 3 times. Turn the pitch-trim control wheel to the 0 deg position.
NOTE : The THS operates.
____
(4) Stop the hydraulic power cart. Subtask 12-36-29-869-059
B. Isolation of the Primary Flight Controls
(1) On the panel 50VU in the cockpit, lift the guard and push the HYD/LEAK MEASUREMENT VALVES/Y P/BSW (the OFF light comes on).
Subtask 12-36-29-611-060
C. Continuation of the Fluid Change without the Hydraulic Lines of the EDP WARNING : MAKE SURE THAT THE TRAVEL RANGE OF THE THRUST REVERSER IS CLEAR
_______ BEFORE YOU PRESSURIZE THE HYDRAULIC SYSTEM. IF NOT YOU CAN CAUSE BAD INJURY TO PERSONNEL.
CAUTION : DO NOT LET THE HYDRAULIC FLUID IN THE GROUND POWER CART
_______ DECREASE BELOW THE LOW LEVEL. DO NOT LET THE AUXILIARY HYDRAULIC RESERVOIR BECOME TOO FULL.
(1)
Make sure that the manual selector valves on the leakage measurement selector-valve 3146GM (in the MLG bay) are in the OFF position.
(2)
On the ground service panel, make sure that the selector valve 2500MJ is in the E PUMP position.
(3)
Operate the hydraulic power cart. NOTE : Increase the rate of flow and the pressure as necessary.
____
(4)
On the cargo-door control panels, put and hold the selectors in the OPEN position until the cargo doors are open. Put and hold the selectors in the CLOSE position until the cargo doors are closed. Do this step 2 times.
NOTE : The FWD and AFT cargo-compartment doors operate.
____
(5)
Operate the thrust reverser of engine 2 (Ref. TASK 78-31-00-710-040).
(6)
Bleed a minimum of 3 l (0.7925 USgal) of hydraulic fluid from the brake units of the alternate braking system (Ref. TASK 32-43-00-870-002).
Subtask 12-36-29-611-061
D. Change the hydraulic fluid in the brake accumulator 2582GM.
CAUTION : DO NOT LET THE HYDRAULIC FLUID IN THE GROUND POWER CART
_______ DECREASE BELOW THE LOW LEVEL. DO NOT LET THE AUXILIARY HYDRAULIC RESERVOIR BECOME TOO FULL.
(1)
Stop the hydraulic power cart.
(2)
On the brake manifold 3016GM (in the MLG bay), push the pressure relief valve 3067GM to drain the accumulator 2582GM of hydraulic fluid.
(3)
Operate the hydraulic power cart. NOTE : Increase the rate of flow and the pressure as necessary.
____
(4)
Do the steps (1) thru (3) 3 times.
(5)
Stop the hydraulic power cart.
(6)
Disconnect the pressure hose of the hydraulic power cart from the delivery connector 3008GM at the ground service panel.
Subtask 12-36-29-611-057
E. Fluid Change of the Suction Line of the EDP (Ref. detail B) CAUTION : DO NOT LET HYDRAULIC FLUID FALL ON THE ENGINE. UNWANTED
_______ HYDRAULIC FLUID MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FLUID CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.
CAUTION : MAKE SURE THAT THE FLOW RATE AND THE SUPPLY PRESSURE ON THE
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本文链接地址：A320飞机维护手册 AMM SERVICING 2(118)
