An employee stopped a machine to exchange a full reel for an empty reel in the take-up. The employee rolled the empty reel into the take-up and placed the tail of the wire into the flange hole of the reel. The employee then began removing slack from the wire. As the wire tightened, it got caught on a bolt on a motor of the take-up. The wire was pulled tight and caught the employee's finger against the reel flange amputating the employee's fingertip.