-
In order to enable ground maintenance operations, the small chamber can also be unlocked manually by means of the maintenance unlocking crank-lever (10). This lever also holds the maintenance pressure-inhibiting valve (9), thus the control chamber of the bypass valve is connected to the return line. This action avoids spoiler movement even if the servocontrol is then pressurized.
F. Maintenance and rigging facilities The maintenance is "on position". The items below are line Replaceable Units (LRUs) :
-filter
-servovalve.
The length of the actuator piston rod is adjustable to allow to obtain
the spoiler neutral position when the piston rod is fully retracted.
SPOILER HYDRAULIC ACTUATION - DEACTIVATION/REACTIVATION
_______________________________________________________
TASK 27-64-00-040-001
Deactivation of the Spoiler Servo Control
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 : DO NOT DO THIS DEACTIVATION PROCEDURE IF THERE IS EXTERNAL LEAKAGE ON
_______
THE UNSERVICEABLE SERVOCONTROL.
R
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______
CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
1. Reason for the Job
__________________
Refer to the MMEL TASK: 27-64-01
Spoiler Hydraulic Actuation
Spoiler
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific metal rod (tommy bar) dia. 4mm (0.1574in.).
No specific tie-wrap
No specific warning notices
No specific access platform 3.5 m (11 ft. 6 in.)
98D27603002001 1 SPOILER MAINTENANCE KEY
98D27803000000 1 LOCKING TOOL - FLAP/SLAT CONTROL LEVER
98D27903500000 2 PIN-SIDE STICK LOCKING
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
27-50-00-866-008 27-50-00-866-009 27-64-00-710-001 29-10-00-863-003 29-10-00-864-003 29-23-00-863-001 29-23-00-864-001 29-24-00-863-001 29-24-00-864-001 Extension of the Flaps on the GroundRetraction of the Flaps on the GroundOperational Test of the Spoiler Hydraulic ActuationPressurize the Blue Hydraulic System with a Ground Power SupplyDepressurize the Blue Hydraulic SystemPressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric PumpDepressurize the Green and Yellow Hydraulic Systems after Operation of the PTUPressurize the Yellow Hydraulic System with the Electric PumpDepressurize the Yellow Hydraulic System
R **ON A/C 001-049, 052-099, 101-149, 151-199, 201-299, 301-399, 401-499,
27-64-00-991-007 **ON A/C 051-051, Fig. 401
27-64-00-991-007-A **ON A/C ALL Fig. 401A
R 3. Job Set-up__________ **ON A/C 001-049, 052-099, 101-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 401/TASK 27-64-00-991-007)
De-activation and Re-activation of the Servocontrol
Figure 401/TASK 27-64-00-991-007
R 1EFF : 001-049, 052-099, 101-149, 151-199, 1 27-64-00Page 403 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1R **ON A/C 051-051,
R (Ref. Fig. 401A/TASK 27-64-00-991-007-A) R **ON A/C ALL
Subtask 27-64-00-860-057
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Extend the flaps (Ref. TASK 27-50-00-866-008).
(3)
On the overhead panel 23VU :
-Release the FLT CTL/SEC 1 pushbutton switch (on this pushbutton switch, the OFF legend comes on). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM FLIGHT CONTROLS 飞行操纵6(101)
