Separation device 6 comprises a first cyclone separation unit 18 comprising a first cyclone separator 22 having a separator axis X, a second cyclone separation unit 20 comprising a second cyclone separator 44 -Said second cyclone separation unit (20) is movable between a first position and a second position with respect to said first separation unit (18) in a direction parallel to said separator axis; And a screen 40 disposed in the first cyclone separator 22 so as to extend parallel to the separator axis X. The screen is connected to the second cyclone separation unit 20 to move together with the second cyclone separation unit. The separating device 6 comprises a wipe 42 for cleaning the screen 40, which wipe 42 is fixed to the first cyclone separating unit 18 so that the first of the second cyclone separating unit 20 Debris is removed from the screen 40 as the screen 40 moves relative to the wipe 42 due to movement from the position to the second position.
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