(1)
Make sure that the manual selector valves on the leakage measurement selector-valve 1146GM (in the MLG bay) are in the OFF position.
(2)
Operate the hydraulic power cart. NOTE : Increase the rate of flow and pressure as necessary.
____
(3)
Operate the thrust reverser of engine 1 (Ref. TASK 78-31-00-710-041).
(4)
Close the MLG doors (Ref. TASK 32-12-00-410-001).
(5)
Operate the nose wheel steering (Ref. TASK 32-51-00-720-003).
(6)
Stop the hydraulic power cart.
(7)
Lift the aircraft (Ref. TASK 07-11-00-581-001).
(8)
Remove the turntable.
(9) Remove the safety locks from the landing gear: R - for the NLG remove the GROUND SAFETY LOCK (D23080000)
-for the MLG remove the GROUND LOCK SLEEVE (460005833) or the GROUNDLOCK SLEEVE (460007280).
(10)
Operate the hydraulic power cart. NOTE : Increase the rate of flow and pressure as necessary.
____
(11)
On the panel 400VU, move the landing-gear contol lever to the UP position and then to the DOWN position. Do this step 3 times.
NOTE : The landing gear and landing gear doors operate.
____
(12) Install the safety locks on the landing gear (Ref. TASK 32-00-00-481-
001): R - for the NLG GROUND SAFETY LOCK (D23080000)
-for the MLG GROUND LOCK SLEEVE (460005833) or the GROUNDLOCK SLEEVE (460007280).
(13)
Bleed a minimum of 3 l (0.7925 USgal) of hydraulic fluid from the brake units of the normal braking system (Ref. TASK 32-42-00-870-001).
(14)
Stop the hydraulic power cart.
(15)
Lower the aircraft (Ref. TASK 07-11-00-586-001).
(16)
Disconnect the pressure hose of the hydraulic power cart from the delivery connector 1008GM at the ground service panel.
Subtask 12-36-29-611-054
D. 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
_______
GROUND HYDRAULIC CART ARE SET TO A MINIMUM.
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)
Connect the hose of the auxiliary hydraulic reservoir to the suction connector 1006GM at the ground service panel.
(2)
Disconnect the suction line 1038GM at the fluid disconnect panel of the engine 1.
(3)
Connect the pressure hose of the hydraulic power cart to the coupling 1700GM at the fluid disconnect panel of the engine 1.
(4)
Put blanking plugs on the disconnected line ends.
(5)
Operate the hydraulic power cart until a minimum of 20 l (5.2833 USgal) of hydraulic fluid flows into the auxiliary hydraulic reservoir.
NOTE : Increase the rate of flow and pressure as necessary, do not
____ pressurize to more than 100 psi (6.8947 bar).
(6)
Stop the hydraulic power cart.
(7)
Disonnect the pressure hose of the hydraulic power cart from the coupling 1700GM of the fluid disconnect panel at the engine 1.
(8)
Disconnect the hose of the auxiliary hydraulic reservoir from the suction connector 1006GM at the ground service panel.
(9)
Remove the blanking plugs.
(10) Connect the suction line 1038GM at the fluid disconnect panel at the engine 1.
Subtask 12-36-29-611-053
E. Fluid Change of the Pressure Line of the EDP (Ref. detail C)
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
_______
GROUND HYDRAULIC CART ARE SET TO A MINIMUM.
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)
Connect the pressure hose of the hydraulic power cart to the delivery connector 1008GM at the ground service panel.
(2)
Disconnect the pressure line 1673GM from the pressure coupling at the fluid disconnect panel of the engine 1.
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