6 On the AIR COND panel 30VU, push the APU BLEED pushbutton
_ switch (the OFF legend goes off).
7 On the BLEED page, make sure that the bleed pressure regulator
_ valve is shown closed.
8 Stop the APU:
_
-GTCP 36-300 (Ref. AMM TASK 49-00-00-860-004) or
-APS 3200 (Ref. AMM TASK 49-00-00-860-006) or
-131-9(A) (Ref. AMM TASK 49-00-00-860-009).
9 Depressurize the system on the test set.
_
10 Remove the TEST SET - ENGINE BLEED SYSTEM (98D36003000000) or
__ TEST SET - ENGINE BLEED SYSTEM (98F36003002000).
4. Fault Isolation
_______________
A. Do a check of the visual position indicator of the bleed pressure regulator valve.
(1) If the visual position indicator is in the closed position:
-disconnect the electrical connector 4001HA2-A and make sure that there is continuity between pin A/5 and A/3.
(a) If there is continuity:
- on the wiring side, do a check for ground at the connector 4001HA2-A pin 3.
1 If there is a ground signal:
_
-do a check and repair the wiring from the bleed pressure regulator valve 4001HA2-A pin A/5 and the BMC2 pin AA/2B (Ref. ASM 36-11/02).
2 If there is no ground signal:
_
-do a check and repair the wiring from the connector 4001HA2-A pin 3 to the ground point (Ref. ASM 36-11/02).
(b) If there is no continuity:
-replace the VALVE-BLEED PRESS REG (4001HA) (Ref. AMM TASK 36-11-52-000-040) and (Ref. AMM TASK 36-11-52-400-040).
1
-EFF : ALL
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(2) If the visual position indicator is in the open position:
-disconnect the sense line between the bleed pressure regulator valve and the bleed-pressure-regulated valve-control solenoid.
(a)
If the bleed pressure regulator valve is closed:
-replace the SOLENOID-BLEED PRESS REG V CTL, ENG 2 (10HA2) (Ref. AMM TASK 36-11-55-000-001) and (Ref. AMM TASK 36-11-55-400-001).
(b)
If the bleed pressure regulator valve is not closed:
-replace the VALVE-BLEED PRESS REG (4001HA) (Ref. AMM TASK 36-11-52-000-040) and (Ref. AMM TASK 36-11-52-400-040).
-refer to Para. 4B.
(c)
If the fault continues:
-replace the P/BSW-ENG 2 BLEED (4HA2).
1 If the fault continues:
_
-do a check and repair the wiring (Ref. ASM 36-11/02) between: . pin 2 of the AIR BLEED/ENG 2/CTL circuit breaker (3HA2) and pin AA/8A of the BMC 2 (1HA2) . pin 2 of the AIR BLEED/ENG 2/CTL circuit breaker and pin A/D2 of the ENG 2 BLEED pushbutton switch (4HA2) . pin AA/7A of the BMC 2 and pin A/D1 of the ENG 2 BLEED pushbutton switch . pin A/D3 of the ENG 2 BLEED pushbutton switch and pin A/1 of the engine 2 bleed pressure regulator valve control solenoid (10HA2) . pin A/2 of the engine 2 bleed pressure regulator valve control solenoid and the ground.
B. Do the test given in para. 3.
5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1)
Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2)
On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(3)
De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
1
-EFF : ALL
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Loss of the Bleed Transferred-Pressure Transducer of the Engine 1
1. Possible Causes
_______________
-XDCR-BLEED TRANSFER PRESS, ENG 1 (7HA1)
-BMC-1 (1HA1)
-
wiring between pin A/2 of the bleed transferred-pressure transducer (7HA1) and the ground terminal
-
wiring between pin A/1 of the bleed transferred-pressure transducer (7HA1) and the circuit breaker (2HA1)
-
wiring from the bleed transferred-pressure transducer (7HA1) to the BMC1 (1HA1)
-
wiring from pin A/1 of the bleed transferred-pressure transducer (7HA1) to the circuit breaker (2HA1)
-C/B-BMC 1 (2HA1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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