Crushing jaw set for a crusher and crusher with crushing jaw set

The invention relates to a crushing jaw set (50) for a crusher (1), comprising a first crushing jaw unit (52) for a first working unit (8) and a second crushing jaw unit (54), wherein a crushing chamber (9) is defined between the first and the second working unit (8, 4), wherein the first crushing jaw unit (52) comprises at least a first and a second crushing jaw (61, 62), wherein the first and the second crushing jaw (61, 62) are separated at a first jaw parting plane (BE1) which is aligned transversely to a material flow direction of the crusher (1). According to the invention, it is provided that at least the first crushing jaw (61) is formed from two or more first crushing jaw segments (72a-72h), which are each separated at a segment parting plane (SE) which is perpendicular to the first and second jaw parting plane (BE1, BE2). The invention further relates to a crusher (1) and a maintenance method.