Press button blade release lever.
It is important when fitting the blade release leverto ensure the two hair spring sprigs of the holding plate (blade hinge assembly) are correctly slotted into the two holes provided
(see red arrows) before you refit and tighten the screws to the clipper head. If this is not done correctly the blade may not fit or release correctly.
Part number: KM1221-7090
See parts diagram item KM1221-7090