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PTU安装后有个安装测试，手册上的步骤，有些不太懂是为什么，想请教各位师傅给予解答。不胜感谢。
F. Power Transfer Unit (PTU) Control Valve Installation Test
SUBTASK 29-22-31-860-004
(1) Pressurize the reservoirs for hydraulic system A and system B. To pressurize the reservoirs, do
this task: Hydraulic Reservoirs Pressurization, TASK 29-09-00-860-801 or Hydraulic Reservoirs
Pressurization, TASK 29-09-00-860-807.
SUBTASK 29-22-31-860-005
(2) Do this task: (Supply Electrical Power, TASK 24-22-00-860-811.
SUBTASK 29-22-31-860-006
WARNING: BE CAREFUL WHEN YOU OPEN OR CLOSE CIRCUIT BREAKERS IN THE P91 AND
P92 PANELS WHILE THE PANELS HAVE POWER. ELECTRICAL SHOCK CAN
CAUSE INJURIES TO PERSONNEL.
(3) Open these circuit breakers and install safety tags:
F/O Electrical System Panel, P6-2
Row Col Number Name
A 16 (C01085) HYDRAULIC SYSTEM PTU VALVE CONT 2
查WDM，PTU还有一个CONT1，不知道这里为什么把2拔了。
Power Distribution Panel Number 2, P92
Row Col Number Name
F 2 (C01449) STANDBY HYDRAULIC PUMP
为什么要拔备用泵跳开关，我的理解是，收后缘只需要电动马达即可，拔备用泵跳开关，泵没有工作，声音没了，更清静一些。
SUBTASK 29-22-31-860-007
(4) Make sure that these circuit breakers are closed:
F/O Electrical System Panel, P6-2
Row Col Number Name
A 15 (C01081) HYDRAULIC SYSTEM PTU VALVE CONT 1
F/O Electrical System Panel, P6-3
Row Col Number Name
C 15 (C01355) LANDING GEAR AIR/GND SYS 2
C 16 (C01356) LANDING GEAR AIR/GND SYS 1
SUBTASK 29-22-31-210-001
(5) Pressurize hydraulic system A and system B. To pressurize it, do this task: Hydraulic System A or
B Pressurization, TASK 29-11-00-860-801.给A,B打压
SUBTASK 29-22-31-860-008
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LEADING
EDGE FLAPS AND SLATS. THE LEADING EDGE FLAPS AND SLATS CAN MOVE
AUTOMATICALLY. THIS CAN OCCUR WHEN THE HYDRAULIC SYSTEM IS
PRESSURIZED, THE TRAILING EDGE FLAPS ARE IN POSITION 1, 2, OR 5, AND
THE NOSE OR MAIN LANDING GEAR AIR/GROUND RELAYS SENSE AN
AIRBORNE CONDITION. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE
TO EQUIPMENT.
(6) Move the flap control lever to the 1-unit detent.
手柄一度，此时前缘克鲁格襟翼应该全放出吧？
SUBTASK 29-22-31-210-003
(7) Make sure the control valve [1] is closed.
活门关，此时还不满足开的条件
NOTE: The position indicator arm on PTU control valve should move and point to the
CLOSED position that is marked on the valve nameplate.
SUBTASK 29-22-31-860-009
(8) Remove power from hydraulic system B. To remove it, do this task: Hydraulic System A or B
Power Removal, TASK 29-11-00-860-805.B不打压，现在只剩下A
SUBTASK 29-22-31-860-010
(9) Put the airplane in the Air Mode. To do it, do this task: Put the Airplane in the Air Mode,
TASK 32-09-00-860-801.飞机模拟空中
(a) Make sure that the PTU control valve opens.
空中，B无压力，后缘在1度，活门开
NOTE: The position indicator arm on the PTU control valve should move and point to
the OPEN position that is marked on the valve nameplate.
SUBTASK 29-22-31-860-017
(10) Move the ALTERNATE FLAPS arm switch, on the P5 panel, to the ARM position
备用襟翼ARM位.
SUBTASK 29-22-31-860-011
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LEADING
EDGE FLAPS AND SLATS. THE LEADING EDGE FLAPS AND SLATS CAN MOVE
QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
前面正常B泵已经把前缘放下了，而且备用泵都拔了，这里为什么还警告说前缘作动有危险呢？
(11) Move the ALTERNATE FLAPS control switch to the up position. This should fully retract the
trailing edge flaps.备用收后缘
SUBTASK 29-22-31-210-004
(12) Make sure that the PTU control valve closes。
后缘收上位，不在0到15度之间，所以活门关
NOTE: The position indicator should move and point to the closed position. The position
indicator will point approximately 45° aft of inboard when the valve is closed.
SUBTASK 29-22-31-790-001
(13) Examine the PTU control valve and all connections for leaks.
SUBTASK 29-22-31-869-001
(14) Move the ALTERNATE FLAPS control switch to the OFF position.
SUBTASK 29-22-31-860-018
(15) Move the ALTERNATE FLAPS arm switch, on the P5 panel, to the OFF position.
备用襟翼电门OFF位
SUBTASK 29-22-31-860-019
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LEADING
EDGE FLAPS AND SLATS. THE LEADING EDGE FLAPS AND SLATS CAN MOVE
QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
这里的意思是，下面要收前缘。但后缘在收上位，活门都没打开，A虽然有压力，飞机模拟空中，但PTU不工作啊？怎么收前缘呢？
(16) Move the flap control lever to the FLAP UP detent.
手柄UP位
G. Put the Airplane Back to Its Usual Condition
恢复工作。但这里前缘没收上，下面步骤B系统也没打压收前缘，怎么能back to its usual condition呢？
SUBTASK 29-22-31-860-012
(1) Remove power from hydraulic system A. To remove it, do this task: Hydraulic System A or B
Power Removal, TASK 29-11-00-860-805.A泵不工作
SUBTASK 29-22-31-860-013
(2) Return the aiplane to the Ground Mode. To do it, do this task: Return the Airplane to the Ground
Mode, TASK 32-09-00-860-802.飞机置地面
SUBTASK 29-22-31-860-014
(3) Do the servicing for the system A and B reservoirs if it is necessary, do this task: Hydraulic
Reservoir Servicing, TASK 12-12-00-610-801.
SUBTASK 29-22-31-860-015
(4) Remove the safety tags and close these circuit breakers:闭合跳开关
F/O Electrical System Panel, P6-2
Row Col Number Name
A 16 (C01085) HYDRAULIC SYSTEM PTU VALVE CONT 2
Power Distribution Panel Number 2, P92
Row Col Number Name
F 2 (C01449) STANDBY HYDRAULIC PUMP
SUBTASK 29-22-31-860-016
(5) Do this task: Remove Electrical Power, TASK 24-22-00-860-812.
请高手师傅指导。 |
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M2易错题及相关笔记整理
特立独行的家伙们
M5知识点，熟记后M5必过
求購ADTS 相關系列軟管Fitting. 如圖.
发表于 2013-6-27 23:51:28
