TASK 12-36-29-170-008
Flushing of the Yellow Hydraulic System of the Flap Power Control-Unit (PCU) 6201CM
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
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START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
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R WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
_______ R - FLUSH IT AWAY WITH CLEAN WATER R - GET MEDICAL AID.
1. Reason for the Job
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To flush the Yellow hydraulic system after a failure in that part of the flap PCU 6201CM
2. Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific adaptor
No specific blanking plugs
No specific hydraulic power cart
No specific safety barriers
No specific union
No specific warning notices
No specific access platform 2.50 m (8 ft. 2 in.)
No specific containers 5 l (1.3208 USgal)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-863-002 Pressurize the Yellow Hydraulic System 29-10-00-864-002 Depressurize the Yellow Hydraulic System 29-13-44-610-001 Servicing of the LP-Filter (3002GM) 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access 12-36-29-991-008 Fig. 308
3. Job Set-up
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(Ref. Fig. 308/TASK 12-36-29-991-008) Subtask 12-36-29-860-071
A. Aircraft Maintenance Configuration
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Depressurize the Yellow hydraulic system (Ref. TASK 29-10-00-864-002).
(3)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
(4)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
Subtask 12-36-29-010-091
B. Get Access
(1)
Open the right MLG door (Ref. TASK 32-12-00-010-001).
(2)
Open the access door 198CB.
(3)
Open the access panel 196BB.
Yellow Hydraulic System of the Flap PCU 6201CM - Flushing Schematic
Figure 308/TASK 12-36-29-991-008
Subtask 12-36-29-860-072
C. Preparation for the Flushing Procedure
(1)
Put the warning notices in postion.
(2)
Put the safety barriers in position.
(3)
Put the access platform in position at the Zone 148.
(4)
Put the containers in position to collect the hydraulic fluid below:
-
the flap PCU 6201CM,
-
the LP manifold 3003GM.
(5)
Disconnect the case drain line from the motor in the Yellow hydraulic system of the flap PCU 6201CM.
(6)
Disconnect the pressure line from the valve block 24CV in the Yellow hydraulic system of the flap PCU 6201CM.
(7)
Disconnect the case drain line from the LP manifold 3003GM.
(8)
Put the hydraulic power cart in position as necessary.
(9)
Connect the pressure line to the case drain line with a union at the flap PCU 6201CM.
CAUTION : MAKE SURE THAT THE FLOW RATE AND THE SUPPLY PRESSURE ON THE
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GROUND HYDRAULIC CART ARE SET TO A MINIMUM.
(10)
Connect the pressure hose of the hydraulic power cart to the delivery connector 3008GM with an adaptor.
(11)
Connect the return hose of the hydraulic power cart to the case drain line at the LP manifold 3003GM with an adaptor.
(12)
Put blanking plugs on the disconnected line ends.
4. Procedure
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(Ref. Fig. 308/TASK 12-36-29-991-008) Subtask 12-36-29-170-057 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM SERVICING 2(104)
