Thanks all for your input.
The factory has replied to Matt that the temp are "normal", but he is having a hard time believing that is correct for a free running motor. Even if that is true, that would be heck of an inefficient setup IMO !!
Matt is going to try the temp test, to compare with my results, as soon as he can get an IR temp device. I am glad he is trying to figure out what is going on with me.
I realize most of you think I should get the replacement motor right away and stop wasting my time with what appears to be a defective unit, BUT being in France :
- shipping a new motor involves some cost and delay
- I don't know if customs will want to charge the 20% tax, being a replacement unit (don't know about that one really), that is a possibility
- if the problem is the 50Hz vs 60Hz issue, I would have the exact same issue with the replacement motor. I don't think Matt has "proper" 220V/50Hz motors. I suppose what I will get is an identical spare unit.
- Matt will not be able to test the replacement motor on 220V/50Hz prior to shipping it to me
This is why I am trying to push the investigation on my end. It is not my job and in an ideal world it should not be my problem but if I find the issue and if it is an easy fix, it would be a preferable outcome than swapping the motor out. Especially if the new motor doesn't solve anything, which is a possibility.
Matt has sent me a picture of the wiring on another PM1236. It is not identical. Maybe this is where the issue is, but maybe not. The factory may not be consistent in the wiring color they use. I need to open the electrical box and find out where my motor wirings come from.
OK there might be an issue with the centrifugal start switch, I would like to check that one too, if I can access to it : where is it located ?
Lastly, I have seen some VFD videos on youtube. Man, those motors seem to run butter smooth. I am tempted. I am now chewing on the idea of an upgrade.
For $333 I can have the standard 3-phase motor with a Hitachi VFD shipped. For $150 more I can upgrade for the better Leeson 3 Phase Motor. So for a little less than $500 I would get a good quality VFD setup for my PM-1236 and I would rule out any 50Hz VS. 60Hz issue.