4. Fault Isolation
_______________
R R A. If the BITE test gives the maintenance message: Y HYD PRESS SW1 - replace the PRESS SW-Y HYD, FLT CTL (10CE3), (Ref. AMM TASK 27-92-17-000-002) and (Ref. AMM TASK 27-92-17-400-002). - open and close the circuit breakers 20CE1 and 20CE2.
R (1) If the fault continues: - do a check and repair the wiring from the pressure switch (10CE3) pin A/B to the first terminal block, (Ref. ASM 27-92/27). - open and close the circuit breakers 20CE1 and 20CE2.
B. Do the BITE test given in Para. 3.
5. Close-up________
A. Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
Failure of the Yellow Hydraulic Pressure Switch (3151GN)
1. Possible Causes
_______________
- PRESS SW-FLT CTL, Y (3151GN)
- wiring from the pressure switch (3151GN) pin A/B to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
31-32-00-810-932 Failure of the Discrete Links
R AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning) AMM 29-10-00-863-002 Pressurize the Yellow Hydraulic System AMM 29-10-00-864-002 Depressurize the Yellow Hydraulic System AMM 29-32-12-000-003 Removal of the System Pressure Switch (3151GN) AMM 29-32-12-400-003 Installation of the System Pressure Switch (3151GN) ASM 27-92/27
3. Fault Confirmation
__________________
A. Job Set-Up
(1) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
B. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/FCDC1/SPLY 20CE1 B10 121VU FLIGHT CONTROLS/FCDC2/SPLY 20CE2 Q20
C. Test
(1) Do the BITE test of the EFCS (Ground Scanning) (Ref. AMM TASK 27-96-00-740-001).
4. Fault Isolation
_______________
A. If the BITE test gives the maintenance message:
Y HYD PRESS SW2
- do the trouble shooting procedure (Ref. TASK 31-32-00-810-932) . related to the DSI 19 discret input signal of the SEC 2 and SEC 3, . related to the DSI 32 discret input signal of the ELAC 1 MON and ELAC 2 MON (Ref. ASM 27-92/27)
- open and close the circuit breakers 20CE1 and 20CE2.
(1) If the fault continues:
- replace the PRESS SW-FLT CTL, Y (3151GN), (Ref. AMM TASK 29-32-12-
000-003) and (Ref. AMM TASK 29-32-12-400-003). - open and close the circuit breakers 20CE1 and 20CE2.
(a) If the fault continues:
- do a check and repair the wiring from the pressure switch (3151GN) pin A/B to the first terminal block, (Ref. ASM 27-92/27).
- open and close the circuit breakers 20CE1 and 20CE2.
B. Do the BITE test given in Para. 3.
5. Close-up
________
A. Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
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CES Failure of the Yellow Hydraulic Pressure Transducer
1. Possible Causes
_______________
- PRESS XDCR-Y (3065GN)
- wiring of the 28VDC signal from the pressure transducer (3065GN) to the first terminal block 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(115)
