Finally got a chance to look at the sled after my son had taken it out west. Secondary bolt work out to the point where the secondary came off. Just needed to run a tap in to clean up a burr and I can now thread in the bolt. However, I can't split sheaves to put the belt on. See in the pictures. Its as if the rollers are not on the helix. Also cannot get the sheaves to move on the shaft. Appreciate thoughts on what might be the problem and fix. Thank you.