Method of manufacturing a modular pump and motor assembly

1 . A method of preparing a pump and a motor combination for use, the method comprising the steps of:

choosing a selected pump from a plurality of pumps;

choosing a selected motor from a plurality of motors;

securing the selected pump to a pump flange extending radially inward from an annular wall of a motor stool;

securing the selected motor to a motor flange extending radially inward from the annular wall of the motor stool;

securing a motor output shaft for rotation with a pump input shaft;

securing the selected pump to a first frame cross member chosen from a plurality of nominally identical frame cross members;

securing the selected motor to a second frame cross member chosen from the plurality of nominally identical frame cross members;

securing the first frame cross member and the second frame cross member to a first frame side member chosen from a plurality of nominally identical frame side members; and

securing the first frame cross member and the second frame cross member to a second frame side member chosen from the plurality of nominally identical frame side members.

2 . The method of claim 1 , wherein the plurality of pumps comprises a first pump having a first pump characteristic from a pump characteristic class and a second pump having a second pump characteristic from the pump characteristic class, the second pump characteristic being different from the first pump characteristic, and wherein the step of choosing a selected pump from the plurality of pumps comprises choosing one of the first pump and the second pump as the selected pump.

3 . The method of claim 2 , wherein the step of securing the selected pump to the pump flange comprises the step of piloting the selected pump to a pump index including a pump index longitudinal wall nominally parallel to a longitudinal axis of the motor stool, the pump index being sized and shaped to guide securement of the first pump and the second pump to the motor stool.

4 . The method of claim 1 , wherein the plurality of motors comprises a first motor having a first motor characteristic from a motor characteristic class and a second motor having a second motor characteristic from the motor characteristic class, the second motor characteristic different from the first motor characteristic, and wherein the step of choosing a selected motor from the plurality of motors comprises choosing one of the first motor and the second motor as the selected motor.

5 . The method of claim 4 , wherein the step of securing the selected motor to the motor flange comprises a step of piloting the selected motor to one of a first motor index including a first motor index longitudinal wall nominally parallel to a longitudinal axis of the motor stool and a second motor index including a second motor index longitudinal wall nominally parallel to the longitudinal axis of the motor stool, the first motor index being sized and shaped to guide securement of the first motor to the motor stool, the second motor index being sized and shaped to guide securement of the second motor to the motor stool, the first motor index being different from the second motor index.

6 . The method of claim 1 , wherein the step of securing the motor output shaft for rotation with the pump input shaft occurs after the steps of securing the selected pump to the pump flange and securing the selected motor to the motor flange, the step of securing the motor output shaft for rotation with the pump input shaft comprising the steps of:

accessing the motor output shaft and the pump input shaft through an access in the motor stool; and

coupling the motor output shaft to the pump input shaft with a shaft coupler.

7 . The method of claim 6 , further comprising:

securing a guard over the access in the motor stool after the step of coupling the motor output shaft to the pump input shaft with a shaft coupler.

8 . The method of claim 1 , wherein the step of securing the selected pump to the first frame cross member chosen from the plurality of nominally identical frame cross members comprises securing a pump repeatable fastener in a graduated aperture formed through the first frame cross member, the step of securing the pump repeatable fastener comprising positioning the pump repeatable fastener in a portion of the graduated aperture formed through the first frame cross member corresponding to a size of the selected pump.

9 . The method of claim 8 , wherein the step of securing the selected motor to the second frame cross member chosen from the plurality of nominally identical frame cross members comprises securing a motor repeatable fastener in a graduated aperture formed through the second frame cross member, the step of securing the motor repeatable fastener comprising positioning the motor repeatable fastener in a portion of the graduated aperture formed through the second frame cross member corresponding to a size of the selected motor.

10 . The method of claim 1 , wherein the step of securing the first frame cross member and the second frame cross member to a first frame side member chosen from the plurality of nominally identical frame side members comprises:

choosing a first aperture from a first array of apertures through the first frame side member;

securing a first frame repeatable fastener through the first frame cross member and the first aperture;

choosing a second aperture from a second array of apertures through the first frame side member; and

securing a second repeatable fastener through the second frame cross member and the second aperture.