Kaeser Compressed Air Filter F9KB

Loosen the locking screw 4 manually until resistance is felt. Did the equipment emit persistent whistling?

Is the compressed air filter pressurized?

Disconnect the compressed air filter from the air network or depressurize the entire air network

Gently jiggle the filter bowl 2 and turn by 90° until installation markings at filter bowl 5 and filter head 6 face each other

Remove the filter bowl and the screwed-in filter element vertically downward

Unscrew the filter element 3 (approx. 1 1/2 turns) from the filter bowl

If required: Drain and dispose of the condensate

Automatic condensate drain: Replace the float

Undo the union nut and remove the hose coupling

Remove the filter bowl and the filter element

Turn the float clockwise until it is fully removed from the filter bowl

Check whether the O-ring at the bottom of the new float is fully inserted in the groove

Tighten the float drain into the filter bowl

Install the filter element and the filter bowl

Install the hose coupling with the union nut

Check the compressed air filter for condensate

Place a suitable container under the condensate drain

Install a sufficiently long, transparent, and pressure-tight hose at the hose coupling and the collection container

Carefully open the shut-off valve and close immediately when fluid escapes

Did oil or an oil-water mixture escape first?

Examine and eliminate the cause of the fault if oil or an oil-water mixture escaped

Check functionality of the electronic condensate drain

Fully vent all pressurized components and enclosures.

Close the shut-off valve upstream of the condensate drain.

Unscrew the screw connection at the condensate line.

Press the snap fastener and carefully remove the control unit from the service unit.

Carefully loosen the clamping nut at the shut-off valve until remaining residual air has escaped through the venting hole.

Unscrew the screw-in part from the service unit and place aside.

Remove the casing from the service unit.