- PUMP-G, ENG 1 (1030GK)
- PRESS SW-G PUMP, ENG 1 (1074GK)
- ENG 1 PUMP P/BSW (1705GK)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 29-00-00-280-006 Check of the Green or Yellow Hydraulic System after Operation in a Possible Cavitation Condition of the Engine Pump
AMM 29-11-00-710-001 Operational Test of the Green Hydraulic System AMM 29-11-17-000-040 Removal of the Engine-Pump Pressure Switch (1074GK) AMM 29-11-17-400-040 Installation of the Engine-Pump Pressure Switch
(1074GK)
AMM 29-11-51-000-040 Removal of the Green Engine Pump (1030GK)
AMM 29-11-51-400-040 Installation of the Green Engine Pump (1030GK)
ASM 29-11/01
3. Fault Confirmation
__________________
A. Do the operational test of the Green hydraulic system (Ref. AMM TASK 29-11-00-710-001).
4. Fault Isolation
_______________
A. If the test gives:
- the message HYD G ENG 1 PUMP LO PR on the upper ECAM DU,
- the LO flag of the Green hydraulic system on the HYD page of the lower ECAM DU,
- the PTU running indication on the HYD page of the lower ECAM DU,
NOTE : The PRESS SW-G PUMP, ENG 1 (1074GK) sends a low pressure signal to
____ the ECAM system. This causes the PTU running indication on the lower ECAM DU, although the PTU does not operate (non system failure).
- the Green ENG 1 PUMP P/BSW FAULT light on panel 40VU,
- look on the HYD page of the lower ECAM DU and do a check of the pressure of the Green system.
「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 ∞∞29-11-00∞∞∞∞∞∞∞∞∞∞Page 218
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(1) If the pressure is less than 1667 psi (114.9355 bar):
- do a check on the lower ECAM DU to make sure that the engine pump fire valve 1046GK is not closed.
(a) If the engine pump fire valve is closed:
- Do a check of the engine pump for a possible cavitation condition (Ref. AMM TASK 29-00-00-280-006).
NOTE : A cavitation condition of the engine pump is possible when
____ the engine pump operates with the engine pump fire valve closed (if you set the ENG 1 (2) FIRE pushbutton on the Eng/APU fire panel), or with the reservoir below the low level (ECAM indication).
- Push the ENG 1 FIRE P/BSW on panel 1WD (ENG/APU FIRE section on the overhead panel 20VU) to open the engine pump fire valve 1046GK.
(b) If the engine pump fire valve is not closed:
- do a check for 28 VDC between: PUMP-G, ENG 1 (1030GK) connector A/1 and PUMP-G, ENG 1 (1030GK) connector A/3 (Ref. ASM 29-11/01).
1 If there is no 28 VDC:
_
a Replace the PUMP-G, ENG 1 (1030GK) (Ref. AMM TASK 29-11-51-
_ 000-040) and (Ref. AMM TASK 29-11-51-400-040).
b Do a check of the engine pump for a possible cavitation
_ condition (Ref. AMM TASK 29-00-00-280-006).
NOTE : A cavitation condition of the engine pump is
____ possible when the engine pump operates with the engine pump fire valve closed (if you set the ENG 1
(2) FIRE pushbutton on the Eng/APU fire panel), or with the reservoir below the low level (ECAM indication).
2 If there is 28 VDC:
_
- replace the ENG 1 PUMP P/BSW (1705GK).
3 If the fault continues:
_
- do a check of the wiring between: the PUMP-G, ENG 1 (1030GK) connector A/3 and the CB (1701GK) and repair the wiring as necessary (Ref. ASM 29-11/01).
(2) If the pressure is more than 1812 psi (124.9329 bar):
- do a check for continuity between: PRESS SW-G PUMP, ENG 1 (1074GK) connector A/1 and A/2 (Ref. ASM 29-11/01).
「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 ∞∞29-11-00∞∞∞∞∞∞∞∞∞∞Page 219
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(a) If there is continuity:
- replace the PRESS SW-G PUMP, ENG 1 (1074GK). (Ref. AMM TASK 29-11-17-000-040) and (Ref. AMM TASK 29-11-17-400-040).
(b) If there is no continuity:
- make sure that the wiring is not connected to GND between:
PRESS SW-G PUMP, ENG 1 (1074GK) connector A/1 and the DIODE
(1158VD) connector 14 (Ref. ASM 29-11/01).
1_ If the wiring is connected to GND:
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