- for the retract solenoid, measure between pins T and U.
2 The resistance values must be as follows:
_
- for solenoid valves with Part No. 667C0000-02, between 71 Ohms and 84 Ohms.
- for solenoid valves with Part No. 903A0000-01, between 53 Ohms and 60 Ohms.
- for solenoid valves with Part No. 1106A0000-01 or 1111A0000-01, between 53 Ohms and 60 Ohms.
3 Use a 45VDC Isolation Tester or a MEGOHMMETER 100 MOHMS -
_ MEASURING VOLTAGE 45VDC to do a check of the extend and retract solenoid circuit isolation:
- for the extend solenoid connect the pins H and J together
- for the retract solenoid connect the pins T and U together.
4 Connect one test lead of the 45VDC Isolation Tester or of the
_ MEGOHMMETER 100 MOHMS - MEASURING VOLTAGE 45VDC to the pins JH or TU and the other test lead to pin G (Ref. ASM 27-81/02) and (Ref. ASM 27-81/03):
5 Supply a test signal for 5 seconds and then read the
_
resistance value shown:
- the resistance value must be more than 100 Megohms.
(b) If the results of the solenoid valve tests:
- are OK, do step (3)
- are not OK, do the next step.
(2) Replace the applicable solenoid valve, (Ref. AMM TASK 27-84-53-000-002) and (Ref. AMM TASK 27-84-53-400-002).
- if the fault continues, do the next step.
(3) Interchange the SFCC1 and SFCC2 (Ref. AMM TASK 27-51-34-000-001) and (Ref. AMM TASK 27-51-34-400-001).
(a) Do the test in Para. 3.A.(2):
- if the fault stays in the same system, do step (5)
- if the fault moves to the other system, do the next step.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-81-00∞∞∞∞∞∞∞∞∞∞Page 203
May 01/05R CES
(4) Replace the SFCC-1 (21CV) or the SFCC-2 (22CV) in the unserviceable system, (Ref. AMM TASK 27-51-34-000-001) and (Ref. AMM TASK 27-51-34-400-001).
(a) Do the test in Para. 3.A.(2):
- if the fault continues, do the next step.
(5) Examine and clean/replace as necessary the valve block filters, (Ref. AMM TASK 27-84-53-000-003) and (Ref. AMM TASK 27-84-53-400-003).
(a) Do the test in Para. 3.A.(2). Operate the slats many times during the test, to bleed the air from the system:
- if the fault continues, do the next step.
(6) Replace the applicable VALVE BLOCK SLAT 1 (25CV) or VALVE BLOCK SLAT2 (26CV), (Ref. AMM TASK 27-84-53-000-001) and (Ref. AMM TASK 27-84-53-400-001):
- if the fault continues, do the next step.
(7) Do a check and repair as necessary, the aircraft wiring from the applicable SFCC ARINC tray interface to the valve block electrical connector (Ref. ASM 27-81/02) or (Ref. ASM 27-81/03).
(a) Do the test in Para. 3.A.(2).
(8) At the MCDU get access to the SFCC SYSTEM STATUS page and make sure that the message NO FAULTS is shown (Ref. AMM TASK 31-32-00-860-006).
NOTE : More data on the SYSTEM STATUS page can be found in Page Block
____ 301.
5. Close-up
________
A. Remove the ground support and maintenance equipment, the special and standard tools and all other items.
B. Put the aircraft back to its initial configuration.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-81-00∞∞∞∞∞∞∞∞∞∞Page 204
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CES R SFCC Interface to One SLAT APPU or SLAT APPU Fault.
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 : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______
CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
1. Possible Causes
_______________
- SFCC-1 (21CV)
- SFCC-2 (22CV)
- APPU-L SLAT (31CV)
- APPU-R SLAT (32CV) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 飞行操纵 2(56)
