R . If the FAULT legend comes on:
R - replace the SEC-3 (1CE3) (Ref. AMM TASK 27-94-34-000-R 001) and (Ref. AMM TASK 27-94-34-400-001)
R (5) Install all the removed SEC's.
R (6) Close the circuit breaker ELAC 2 NORM SPLY (15CE2).
R C. If the voltage is less than 25.5 V, do a check to find if the problem
R comes from the ELAC 2 hydraulic discrete-inputs.
R (1) Make sure that the three hydraulic systems are not pressurized (Ref.
R AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002) and
R (Ref. AMM TASK 29-10-00-864-003).
「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 ∞∞24-38-00∞∞∞∞∞∞∞∞∞∞Page 261
May 01/01 CES
R (2) Remove the ELAC 1 (2CE1), ELAC 2 (2CE2), SEC 1 (1CE1), SEC 2 (1CE2)
R and SEC 3 (1CE3) from their rack.
R (3) Do a check of a ground signal or an open circuit at the discrete
R inputs DSI 40, 42 and 32 of the ELAC 2 rack when the hydraulic
R pressure state is low (Ref. ASM 27-92/27).
R (a) If a ground signal or an open circuit is found at one discrete
R input:
R - repair the related wiring between the ELAC 2 and the first
R terminal block.
R (4) Install all the removed ELAC's and SEC's.
R D. If the voltage is less than 25.5 V and the problem does not come from the
R Spoiler Elevator Computers (SEC) and from the ELAC 2 hydraulic
R discrete-inputs:
- do the BITE test of the EFCS (Ground scanning) (Ref. AMM TASK 27-96-00-740-001).
NOTE : Do this test procedure with the hydraulic systems not pressurized.
____
(1) If there is a maintenance message related to these pressure switches:
- PRESS SW-B HYD, FLT CTL (10CE1),
- PRESS SW-G HYD, FLT CTL (10CE2),
- PRESS SW-Y HYD, FLT CTL (10CE3),
- PRESS SW-FLT CTL, G (1151GN),
- PRESS SW-FLT CTL, B (2151GN),
- PRESS SW-FLT CTL, Y (3151GN), do the related trouble shooting (Ref. TSM 27 PB 101)
(2) If there is no maintenance message related to the hydraulic pressure switches:
- in the cockpit, on the ELEC panel 35VU, release the BAT2 pushbutton switch and put a warning notice(s) to tell persons not to operate the battery 2,
- in the battery power center 105VU, disconnect the cable between the BAT2 shunt (3PB2) and the ground: for this, remove the bolt and washer from the shunt (Ref. ASM 24-38/02),
- connect an ammeter to the disconnected cable and the disconnected terminal of the shunt: make sure that the polarities of the tool are correct,
- in the cockpit, in the ELEC panel 35VU, push the BAT2 pushbutton switch and remove the warning notice(s),
- do a check of the current value.
(a) If the current is more than 400 mA:
- open the circuit breaker 16CE2 while you monitor the current value (Ref. ASM 27-92/01).
1 If the current value suddenly falls below 400mA when you open
_
the circuit breaker:
「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 ∞∞24-38-00∞∞∞∞∞∞∞∞∞∞Page 262
May 01/01 CES
- disconnect one by one the electrical connectors from these pressure switches (Ref. ASM 27-92/27):
- PRESS SW-FLT CTL, B (2151GN) (Ref. AMM TASK 29-32-12-000-002),
- PRESS SW-FLT CTL, Y (3151GN) (Ref. AMM TASK 29-32-12-000-003),
- PRESS SW-FLT CTL, G (1151GN) (Ref. AMM TASK 29-32-12-000-001),
- PRESS SW-B HYD, FLT CTL (10CE1) (Ref. AMM TASK 27-92-17-000-003),
- PRESS SW-Y HYD, FLT CTL (10CE3) (Ref. AMM TASK 27-92-17-000-002),
- PRESS SW-G HYD, FLT CTL (10CE2) (Ref. AMM TASK 27-92-17-000-001),
while you monitor the current value after you closed the
circuit breaker 16CE2.
a If after you disconnected the PRESS SW-FLT CTL, B (2151GN)
_ the current value is less than 400mA:
- replace the PRESS SW-FLT CTL, B (2151GN), (Ref. AMM TASK 29-32-12-000-002) (Ref. AMM TASK 29-32-12-400-002) and connect all the electrical connectors that you disconnected.
b If after you disconnected the PRESS SW-FLT CTL, Y (3151GN),
_ the current value is less than 400mA:
- replace the PRESS SW-FLT CTL, Y (3151GN), (Ref. AMM TASK 29-32-12-000-003) (Ref. AMM TASK 29-32-12-400-003) and connect all the electrical connectors that you disconnected.
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 電源 3(72)
