Patent ID: 8790077

Claim:
An adjustment assembly for a pump casing of a pump, the pump casing including a main part and a side part having a main axis and a side wall section extending laterally with respect to the main axis, the adjustment assembly being operable to cause relative displacement between the side part and the main part of the pump casing, the adjustment assembly including: a drive device and an actuator which can be activated externally of the pump, said drive device comprising a ring shaped member operatively connected to the side part, said ring shaped member having a threaded portion thereon, and a housing having a threaded portion operatively mounted to or on the housing, the threaded portions being of complementary configuration so as to cooperate with one another, said drive device being operable to cause said relative displacement of the side part in response to activation of said actuator, said relative displacement capable of being a simultaneous combination of axial and rotational movement such that the rotational movement spreads the wear in use on the side wall of the side part.