DOC AIRBUS | MMEL OPS PROCSystem Pressure Indication on the HYD SD page
| 29-07-08A | System Pressure Indication on the HYD SD page |
|---|
Applicable to: -
- During cockpit preparation
NOTE:
If the Yellow Electric Pump
is not available:
- Pressurize the Yellow Hydraulic System with:
- A Ground cart, or with
- The Yellow Engine 2 Pump with the Engine 2 running.
- Replace any action on the YELLOW ELEC PUMP pb-sw by a similar action on the Ground Cart or on the YELLOW ENG 2 PUMP pb-sw in the following procedure.
If the blue system pressure indication is inoperative:
Check of the system label:
On the HYD SD Page, check that the BLUE system label is amber.
- BLUE ELEC PUMP pb-swAUTO
- BLUE PUMP OVRD pb-swON
On the HYD SD Page, check that the BLUE system label is white and that the arrow is
green.
- BLUE PUMP OVRD pb-swOff
If the yellow system pressure indication is inoperative:
Check of the system label:
- YELLOW ELEC PUMP pb-swOff
On the HYD SD Page, check that the YELLOW system label is amber.
- YELLOW ELEC PUMP pb-swON
On the HYD SD Page, check that the YELLOW system label is white and that the arrow
is green.
- YELLOW ELEC PUMP pb-swOff
If the green system pressure indication is inoperative:
Check of the system label:
On the HYD SD Page, check that the GREEN system label is amber.
- YELLOW ELEC PUMP pb-swON
- PTU pb-swAUTO
On the HYD SD Page, check that the GREEN system label is white and that the arrow is
green.
- YELLOW ELEC PUMP pb-swOff
- After Engines Start
| Note: | The HYD PTU FAULT ECAM alert may be triggered. |