Rotating machine coupling hub pulling device

A method comprising:

• structurally supporting, by a support frame sub-assembly, an assembly configured to separate a coupling hub from a shaft;
• adjusting, by a vertical adjustment sub-assembly mechanically coupled to the support frame and vertically relative to a surface of the Earth, a puller sub-assembly relative to the coupling hub, the puller sub-assembly mechanically coupled to the support frame sub-assembly;
• coupling, by the puller sub-assembly, a plurality of puller arms of the puller sub-assembly to the coupling hub and a pusher stud of the puller sub-assembly to the shaft, wherein coupling, by the puller sub-assembly, a plurality of puller arms of the puller sub-assembly to the coupling hub and a pusher stud of the puller sub-assembly to the shaft comprises:
• coupling a first puller arm coupling hub holding end to a coupling hub first side;
• coupling a second puller arm coupling hub holding end to a coupling hub second side, wherein the coupling hub second side opposes the coupling hub first side;
• locking a chain around the first puller arm coupling hub holding end and the second puller arm coupling hub holding end;
• and
• seating the pusher stud against the shaft;
• and
• separating, by the puller sub-assembly, the coupling hub from the shaft by an axial movement of the plurality of puller arms along an axis of the shaft by rotating the pusher stud with a hand tool causing the coupling hub to move along an axis of the shaft.

A hub pulling assembly configured to separate a coupling hub coupled to a shaft of a rotating machine, the assembly comprising:

• a support frame sub-assembly configured to structurally support the hub pulling assembly and the coupling hub, the support frame sub-assembly further comprising a plurality of vertical legs, a center frame member configured to accept a winch, a first frame member coupled perpendicular to the center frame member and also coupled to a first subset of the vertical legs, a second frame member coupled perpendicular to the center frame member in a same plane as the first frame member and also coupled to a second subset of the vertical legs;
• a puller sub-assembly configured to couple to the coupling hub and to separate the coupling hub from the shaft, the puller sub-assembly further comprising a first puller arm comprising a first puller arm coupling hub holding end configured to mechanically engage the coupling hub first side, a second puller arm comprising a second puller arm coupling hub holding end mechanically arranged to engage a coupling hub second side, a puller bar mechanically coupled to the first puller arm, the second puller arm, and the vertical adjustment sub-assembly, and a pusher stud mechanically coupled to the puller bar, and a puller arm lock;
• and
• a vertical adjustment sub-assembly mechanically coupled to the puller sub-assembly, the vertical adjustment sub-assembly structurally supported by the support frame sub-assembly, the vertical adjustment sub-assembly configured to adjust an elevation of the puller sub-assembly from a surface of the Earth, the puller sub-assembly constrained to move in a vertical axis.