Hydac FSA Série Manuel D'utilisation page 14

E
Check valve in
normal position
Check valve
14
By pressing fully on the buttons of both top
and bottom check valves simultaneously, the
actual fluid level will be indicated in the sight
tube of the level gauge.
If the temperature gauge option is being
used, the actual fluid temperature is also
displayed.
closed
activated
open
Press
To check fluid level, push
buttons on both check valves
simultaneously!
Press