a If there is 28VDC:
_
-do a check for ground at pin A/3 of the connector of the bleed pressure-regulator valve control-solenoid (10HA2).
If there is no ground signal:
* replace the SOLENOID-BLEED PRESS REG V CTL, ENG 2 (10HA2).
b If there is no 28VDC:
_
-do a check for 28VDC at pin A/D2 of the ENG 2 BLEED pushbutton switch (4HA2). . If there is 28VDC:
*
do a check and repair the wiring from the connector of the bleed pressure-regulator valve control-solenoid to the control-solenoid to the ENG 2 BLEED pushbutton switch, pin A/1 to pin A/D3.
If the fault continues:
*
replace the P/BSW-ENG 2 BLEED (4HA2). . If there is no 28VDC:
*
replace the circuit breaker (3HA2).
If the fault continues:
*
do a check and repair the wiring between the ENG 2 BLEED pushbutton switch to the circuit breaker (3HA2), pin A/D2 to pin 2.
C. If the test gives the maintenance message PRESS REG-V 4001HA2 OR SOL 10HA2 OR SENSE LINE:
-do the trouble shooting procedure for the Bleed Pressure Regulator Valve (4001HA) and the Bleed Pressure Regulator Solenoid (10HA2) (Ref. TSM TASK 36-11-00-810-830)
D. Do the test given in para. 3.
1
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Loss of the Coupling between the HP Bleed Valve and the Bleed
Pressure-Regulator Valve of the Engine 1
1. Possible Causes
_______________
-BMC-1 (1HA1)
-VALVE-HP BLEED (4000HA)
-VALVE-BLEED PRESS REG (4001HA)
-wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 36-11-34-000-001 Removal of the BMC (1HA1, 1HA2)
AMM 36-11-34-400-001 Installation of the BMC (1HA1, 1HA2)
AMM 36-11-51-000-040 Removal of the High Pressure Bleed Valve (4000HA)
AMM 36-11-51-400-040 Installation of the High Pressure Bleed Valve
(4000HA) AMM 36-11-52-000-040 Removal of the Bleed Pressure-Regulator Valve (4001HA) AMM 36-11-52-400-040 Installation of the Bleed Pressure-Regulator Valve (4001HA) AMM 36-11-52-720-001 Functional Test of the Opening of the Bleed Pressure Regulator Valve ASM 36-11/01
3. Fault Confirmation
__________________
A. Test
(1) Do the test of the bleed pressure-regulator valve (Ref. AMM TASK 36-11-52-720-001).
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
A. If the fault symptom is identified by the maintenance message: PRESS REG-V 4001HA1 OR HP BLEED-V 4000HA1 OR SENSE LINE and if the HP bleed valve is blocked in the open position:
-make sure that the indication of the position of the HP bleed valve on the lower ECAM display unit is correct when you manually operate the valve shaft.
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--May 01/05 ---CES -
(1) If the indication does not agree with the position of the valve butterfly:
-do a check and repair the wiring from the HP bleed valve to the BMC1 , pin A/1 to pin AA/14A (Ref. ASM 36-11/01).
(a)
If the fault continues:
-replace the BMC-1 (1HA1) (Ref. AMM TASK 36-11-34-000-001) and (Ref. AMM TASK 36-11-34-400-001).
(b)
If the fault continues:
-replace the VALVE-HP BLEED (4000HA) (Ref. AMM TASK 36-11-51-000-040) and (Ref. AMM TASK 36-11-51-400-040).
(c)
If the fault continues:
-do a check and clean the sense line between the bleed pressure-regulator valve (4001HA) and the HP bleed valve (4000HA)
(d)
If the fault continues:
-replace the VALVE-BLEED PRESS REG (4001HA) (Ref. AMM TASK 36-11-52-000-040) and (Ref. AMM TASK 36-11-52-400-040).
R **ON A/C 151-199, 401-499,
A. If the fault symptom is identified by the maintenance message: PRESS REG-V 4001HA1 OR HP BLEED-V 4000HA1 OR SENSE LINE and if the HP bleed valve is blocked in the open position:
-make sure that the indication of the position of the HP bleed valve on the lower ECAM display unit is correct when you manually operate the valve shaft.
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