Installation manual

On-board maintenance
181
850-164186 / Rev.D
Air bleeding
To avoid damage to the transducer by transmitting in air inside
the trunk, the air bleeding system must be checked after the ship
has been docked.
Observe the following procedure.
1 Close the air bleeding cock on top of the trunk flange and
dismount the pipe.
2 Open the air bleeding cock and check that the water is
passing freely through the cock.
3 Check that the pipe is open by blowing in one of the pipe
terminations.
4 Remount the pipe to the air bleeding cock and turn the
cock to the open position.