The lower arm is held in place by a large diameter plastic furled nut right in the middle of the lower arm, as shown below. (There’s a large hole in the middle of this nut.) Undo that and the whole lower arm assembly will come out. This exposes the torx bolts that you need to undo to get to the mesh filter. There may be some minor variations among model numbers on this procedure which are explained in this repair forum topic. Piece of pie, tovarish!

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