Next step, remove the back(non shaft) end cap and look to see if anything is attached to the shaft between the shaft end and the rotor.(like start switch stuff) If not, reverse the armature end for end. You will have to remove the adjustable pulley and any burrs on the shaft first. this assumes a through endcap. If not, the end caps need to be reversed also. That may require accomodation of the power wiring entry.
Pix of the back end cap and armature and wiring entry would help my understanding of what you may have to alter.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Ok so the outer shell was 'peened' to capture the end caps. The dimples can be bent back to allow the end caps to be removed.
Like Dusty said anything put together can be taken apart. This one is more difficult than screws and nuts, but it is possible.
Choice be yours. Follow your instincts.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange