Patent ID: 11906298
Assignee: nan
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC G  B  F | IPC B  G

Claim 0:
1. A method for aligning a crosshead in a reciprocating pump to a fluid end section of the pump, wherein the pump further comprises: a crosshead guide; a pump fluid module having associated therewith or therein a pump liner and a piston having a piston rod system which moves a piston in a linear motion, by use of a piston rod; an extension rod; and optionally one or more shims;
the method comprising the steps of:
(a) removing said pump liner and said piston from a pump fluid module;
(b) affixing an alignment tool to said piston rod;
(c) affixing a measurement device to the alignment tool;
(d) using the measurement device to acquire measurements indicative of perpendicularity or concentricity of one or more of the group: i) the crosshead; ii) the crosshead guide; iii) the piston rod; iv) the extension rod; v) the pump fluid module;
(e) adding or removing one or more shims to achieve more precise concentricity or perpendicularity of one or more of the group: i) the crosshead; ii) the crosshead guide; iii) the piston rod; iv) the extension rod; v) the pump fluid module.