The complete mechanism in the switchable unit is made of plastic, the centerpiece - the lever which transmits the movement of the drive on the trimmer - running on a progresses useful life, the long-hair trimmer unit filled with hair, so that the friction of the mechanism increases and the burden of pin is increased.
He begins by very early too soft (rales, abate the cutting power, "pulling") eventually breaks off completely, so that the trimmer ever stops working.
There are at YT a video in which an owner of UK shows how to dismantle the unit and briefly revive again with an emergency repair.
I shave not often, about every 3-7 days, but who is in urgent need of a reliable razor, the finger should be out of the scrap.
