DOC AIRBUS | AMM A320FOIL FILTER CLOGGING WARNING SYSTEM - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. Scavenge Filter Differential Pressure Switch
The scavenge filter differential pressure switch is installed on a bracket at the top left side of the engine fan case. The switch is connected to ports on the filter housing.
The differential pressure switch is set to operate when the differential pressure increases and gets to 12 psi plus or minus 2 psi
** ON A/C NOT FOR ALL The scavenge filter differential pressure switch is installed on a bracket at the top left side of the engine fan case. The switch is connected to ports on the filter housing.
Scavenge Filter Differential Pressure SwitchThe differential pressure switch is set to operate when the differential pressure increases and gets to 12 psi plus or minus 2 psi
2. Oil Filter Clogging Indication
When the differential pressure through the scavenge filter is higher than 12 psi plus or minus 2 psi, the switch closes.
As a result:
As a result:
When the differential pressure through the scavenge filter is higher than 12 psi plus or minus 2 psi, the switch closes.
As a result:
- On the ENG page on the lower ECAM display unit:
The amber OIL FILTER CLOG indication appears. - On the upper ECAM display unit:
The warning message ENG 1(2) OIL FILTER CLOG appears.
As a result:
- The OIL FILTER CLOG indication on the ENG page on the lower ECAM display unit disappears.
- The warning message on the upper ECAM display unit disappears.