DOC AIRBUS | TSM A320FYellow Electric Pump Motor Running with no Hydraulic Pressure
TASK 29-24-00-810-804-A
Yellow Electric Pump Motor Running with no Hydraulic Pressure
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 29-24-00-710-056-A 4. Fault Isolation
Subtask 29-24-00-810-053-A
Subtask 29-24-00-710-057-A
[Rev.8 from Aug 2018]
2026.04.04 04:29:30 UTC
Yellow Electric Pump Motor Running with no Hydraulic Pressure
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 29-24-00-810-801-A | Loss or Fluctuation of the Pressure of the Yellow Electric Pump |
| AMM 29-13-14-000-001 | Removal of the HP Manifold of the Yellow Hydraulic System |
| AMM 29-13-14-400-001 | Installation of the HP Manifold of the Yellow Hydraulic System |
| AMM 29-13-45-610-001 | Servicing of the HP-Filter |
| CMM 292028 | |
| CMM 292120 | |
| CMM 292121 | |
| AMM 29-24-00-710-001 | Operational Test of the Yellow Auxiliary Power |
| AMM 29-24-21-000-001 | Removal of the Yellow E-Pump Check Valve |
| AMM 29-24-21-400-001 | Installation of the Yellow E-Pump Check Valve |
| AMM 29-24-51-000-001 | Removal of the Electric Pump |
| AMM 29-24-51-400-001 | Installation of the Electric Pump |
Subtask 29-24-00-710-056-A 4. Fault Isolation
Subtask 29-24-00-810-053-A
A. If the test gives:
(1) Fluctuation of the hydraulic pressure:
(a) Remove the PACKAGE E-PUMP [3075GX] AMM 29-24-51-000-001.
(b) Examine the:
1 Remove the CHECK VALVE Y [3083GM] AMM 29-24-21-000-001.
2 Do a visual inspection of the CHECK VALVE Y [3083GM] for damage and missing parts.
3 If parts are missing, do the subsequent before you install the new check valve:
5 Replace the PACKAGE E-PUMP [3075GX] AMM 29-24-51-400-001.
5. Close-up(1) Fluctuation of the hydraulic pressure:
- Refer to (Ref. TSM TASK 29-24-00-810-801).
(a) Remove the PACKAGE E-PUMP [3075GX] AMM 29-24-51-000-001.
(b) Examine the:
- coupling shaft CMM 292121 and
- inner components CMM 292028 or CMM 292120
of the PACKAGE E-PUMP [3075GX] for damage.
1 Remove the CHECK VALVE Y [3083GM] AMM 29-24-21-000-001.
2 Do a visual inspection of the CHECK VALVE Y [3083GM] for damage and missing parts.
3 If parts are missing, do the subsequent before you install the new check valve:
- Examine the Yellow HP filter (3048GM) AMM 29-13-45-610-001 and the Yellow HP manifold AMM 29-13-14-000-001 and AMM 29-13-14-400-001 to find these parts.
5 Replace the PACKAGE E-PUMP [3075GX] AMM 29-24-51-400-001.
Subtask 29-24-00-710-057-A
A. Do the test as given in Para. 3. A. to make sure that the operation is correct.