I'm not sure if anyone here can give me a bit of assistance or not. I have an old Timesaver 137-2hd. It's really old but it works wonderfully. A few days ago, I was asked to work on the machine to try to get the photoeye to work because having to individuals running the sander, one feeding and one manually controlling the belt. After figuring out how that works and getting it to work, now I have an issue where when I kick on the front head, not it tries to run but won't. Motor kicks on and looks to try and rotate but will not. If I stop it and turn the break off, it will freely spin by hand. The second head kicks on just fine with no problems. If anyone has any ideas, I would greatly appreciate it.