SHAFT REPLACEMENTS Sample Clauses

SHAFT REPLACEMENTS. Bent shafts that cannot be straightened or broken shafts shall be replaced as follows: a. Record all critical shaft dimensions relative to one shoulder prior to the start of shaft removal. b. Tighten the core, if necessary, before the shaft is removed. c. Remove all shafts, except for 2-pole motors with fabricated rotors, by pressing them out of the cage. d. The Repairer shall obtain OEM information on the existing shaft material. If the shaft design information is not available, tests shall be conducted on the old shaft to determine its material properties, including hardness. e. Select and confirm the new shaft material to have properties that are similar to that of the old shaft. f. Machine all shaft steps, including keyways, to incorporate appropriate radii to avoid stress concentrations. g. Shrink fit the shaft into the core. h. Spider arm weld cracks that have been verified by dye penetrant tests require grinding and welding repair if grinding cannot eliminate surface cracks. i. Cracked cooling air fans shall be replaced and loose components, such as those used for balancing, shall be welded.