Patent ID: 6887034

Claim:
A centrifugal pump, comprising: a) a pump housing; b) a rotating assembly including a pump impeller mounted to said housing, said pump impeller defining an axis of rotation; c) a removable clean-out assembly mounted to said pump and supporting a wear plate in axial alignment with said impeller and including an end cover; d) a plurality of adjustment members carried by said end cover for adjusting a face clearance between said wear plate and said impeller, at least one of said adjustment members, including: i) an adjuster threadedly received by said end cover and defining a bore for receiving a stud extending from said pump housing; ii) said adjuster defining an abutment surface for abuttably contacting a surface on said pump housing whereby the position of said adjuster in said end cover determines the spacing between said impeller and said wear plate; iii) a locking member for locking said adjuster with respect to said end cover to inhibit rotation.