DOC AIRBUS | TSM A320FLoss of the Coupling between the HP Bleed Valve and the Bleed Pressure-Regulator Valve of the Engine 2
TASK 36-11-00-810-834-A
Loss of the Coupling between the HP Bleed Valve and the Bleed Pressure-Regulator Valve of the Engine 2
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 36-11-00-710-116-B ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 36-11-00-810-084-C ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:33:43 UTC
Loss of the Coupling between the HP Bleed Valve and the Bleed Pressure-Regulator Valve of the Engine 2
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| ASM 361102 | |
| AMM 36-11-34-000-001 | Removal of the BMC |
| AMM 36-11-34-400-001 | Installation of the BMC |
| AMM 36-11-51-000-040 | Removal of the High Pressure Bleed Valve |
| AMM 36-11-51-000-042 | Removal of the High Pressure Bleed Valve |
| AMM 36-11-51-400-040 | Installation of the High Pressure Bleed Valve |
| AMM 36-11-51-400-042 | Installation of the High Pressure Bleed Valve |
| AMM 36-11-52-000-040 | Removal of the Bleed Pressure-Regulator Valve |
| AMM 36-11-52-000-042 | Removal of the Bleed Pressure Regulator Valve |
| AMM 36-11-52-400-040 | Installation of the Bleed Pressure-Regulator Valve |
| AMM 36-11-52-400-042 | Installation of the Bleed Pressure Regulator Valve |
| AMM 36-11-52-720-001 | Functional Test of the Opening of the Bleed-Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 98D36003000000 |
Subtask 36-11-00-710-116-B ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 36-11-00-810-084-C ** ON A/C NOT FOR ALL
A. If the fault symptom is identified by the maintenance message:
PRESS REG-V 4001HA2 OR HP BLEED-V 4000HA2 OR SENSE LINE
and if the HP bleed valve is blocked in the open position:
Subtask 36-11-00-810-084-D ** ON A/C NOT FOR ALL PRESS REG-V 4001HA2 OR HP BLEED-V 4000HA2 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.
- do a check and repair the wiring from the HP bleed valve to the BMC2 , pin A/1 to pin AA/14A ASM 361102.
- replace the BMC-2 [1HA2] AMM 36-11-34-000-001 and AMM 36-11-34-400-001.
- replace the VALVE-HP BLEED [4000HA] AMM 36-11-51-000-040 and AMM 36-11-51-400-040.
- do a check and clean the sense line between the bleed pressure-regulator valve (4001HA), the HP bleed valve (4000HA) and the associated solenoid (11HA2).
- replace the VALVE-BLEED PRESS REG [4001HA] AMM 36-11-52-000-040 and AMM 36-11-52-400-040.
A. If the fault symptom is identified by the maintenance message:
PRESS REG-V 4001HA2 OR HP BLEED-V 4000HA2 OR SENSE LINE
and if the HP bleed valve is blocked in the open position:
Subtask 36-11-00-710-117-A ** ON A/C NOT FOR ALL PRESS REG-V 4001HA2 OR HP BLEED-V 4000HA2 OR SENSE LINE
and if the HP bleed valve is blocked in the open position:
- Make sure that the indication of the HP bleed valve position on the lower ECAM display unit is correct when you manually operate the valve shaft.
- Do a check and repair the wiring from the HP bleed valve to the BMC2 , pin A/1 to pin AA/14A ASM 361102.
- Replace the BMC-2 [1HA2] AMM 36-11-34-000-001 and AMM 36-11-34-400-001.
- Replace the VALVE-HP BLEED [4000HA] AMM 36-11-51-000-042 and AMM 36-11-51-400-042.
- Do a check and clean the sense line between the bleed pressure-regulator valve (4001HA) and the HP bleed valve (4000HA).
- Replace the VALVE-BLEED PRESS REG [4001HA] AMM 36-11-52-000-042 and AMM 36-11-52-400-042.
B. Do the test given in Para. 3.