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8. Depressurize the Green and Yellow
hydraulic systems.
(Ref. TASK 29-23-00-864-001).
9. On the rudder pedals:
R - operate the rudder pedals in
R the left and right directions
R and wait 1 minute.
R 10. On the THS actuator (4):
R - turn the mechanical input (1)
R in the CW direction.
R
R
R
R
R
R 11. On the LH control-valve block
R (2) of the THS actuator(4):
R - remove the TOOL - JAMMING
R SIMULATION from the splined
R end of the control-valve
R shaft.
12. Pressurize the Green and Yellow
hydraulic systems (Ref. TASK 29-
23-00-863-001).
13. On the center pedestal:
R - turn the pitch trim-control
R wheel to the 5 degree nose UP
R position.
-all remaining pressure in the valve blocks of the THS actuator is released.
On the LH threshold-box assy:
(Ref. Fig. 503/TASK 27-44-00-991-004)
-the control-valve detent of the "JAMMED" control-valve becomes recentered (which was possibly opened by the back order on the pitch trim-control wheel) when you hear a "CLICK".
-at the same time the reference marks on the input plate and the ball carrier of the control-valve detent must be in line.
The THS surface moves to the aircraft 5 degree nose UP position.
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ACTION RESULT -------------------------------------------------------------------------------
14. Depressurize the Green and
Yellow hydraulic systems.
(Ref. TASK 29-23-00-864-001).
Subtask 27-44-00-710-054
R D. Do the test in the mechanical mode of the RH valve block.
CAUTION : BE CAREFUL WHEN YOU INSTALL OR REMOVE THE JAMMING SIMULATION
_______ TOOL. PUSH OR PULL THE TOOL AND TURN THE MECHANICAL INPUT SHAFT AT THE SAME TIME. DO THIS UNTIL YOU FIND THE POSITION WHERE YOU CAN INSTALL OR REMOVE THE TOOL EASILY. THIS WILL PREVENT DAMAGE TO THE VALVE CONTROL SHAFT AND THE TOOL.
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1. Do the operational test of the jamming protection device again in the configuration as follows:
R 2. On the RH control-valve block (3) R of the THS actuator (4):
R - install the TOOL - JAMMING R SIMULATION RH A/C N.DN R (OU190857) on the shaft (7) of R the RH control- valve block. R (Ref. Fig. 502/TASK 27-44-00-
991-003)
R - push the TOOL - JAMMING R SIMULATION on the splined end R of the shaft (7) of the RH R control-valve. R - turn the mechanical input shaft R (1) to turn the master spline, R until the spigots of the tool R engage with the slots of the R valve block (3). R - fully push the tool to insert R the spigots in the slots.
On the THS actuator (4):
-the control-valve chain is in the jamming simulation configuration.
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R (Ref. Fig. 502/TASK 27-44-00-
991-003)
R 3. On the THS actuator (4):
R
R - move the mechanical input shaft
R (1) in a Clockwise (CW)
R direction.
4. Pressurize the Green and Yellow
hydraulic systems (Ref. TASK 29-
R 23-00-863-001).
R
R
5. On the center pedestal:
R - look at the pointer on the
R pitch trim-control wheel.
R Immediately before the 0 degree
position is reached, turn the
wheel in the nose up direction
to give a slight back order.
6. Depressurize the Green and Yellow
hydraulic systems.
(Ref. TASK 29-23-00-864-001).
7. On the rudder pedals:
R - operate the rudder pedals in
R the left and right directions
R and wait 1 minute.
R 8. On the THS actuator (4):
R - turn the mechanical input (1)
R in the CW direction.
R
R
R
On the control-valves of the THS actuator: 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3(139)
