[TechGraphix]

Is there a way to get the complete stator out of the housing? (1.5kw aircooled chinese spindelmotor)
So now and then i got a "dl"-error ( shortcircuit output). i found that one of the wires touched the rotor and also that the insulation of the wires is cracked on several places. I want to redo the wiring, therefor: removing the coils from the tube would be handy.
It looks like it's glued in there.. I removed the little black screw from the side.
I don't think i have to hammer it out... i tried heating up the outside to 80 degrees Celsius and cooling the coils but no result..
Is there a solution for this???

Kees

[Al_The_Man]

The normal way of rewinding a stator is to wind the coils and insert them without removing any pressings.
If it comes to the worst, you may have to press it out if this is the method used in this case.
The coils are sheared off and then driven out with a suitable blunt punch.
Al.

[wizard]

Honestly, I'd take it to a motor rewind shop. Sure you can DIY it but sometimes you end up with a lot less grief if you bring a specialist on board. The other thing to consider here, is that if the stator is glued in they will be using high temperature "glue". Most motors these days can operate at very high Temperatures so heating to 80° C would not do much for you at all. If you do heat it up to a high enough temperature to pull it apart then you have to be concerned with sourcing a suitable glue to put it all back together.


Given that you probably don't want to do that you need to carefull observer how the coils are wired up and inter connected. Then you need to get the turns count off at least one coil and also the wire size which very well may be metric. It is a tedious process to say the least. Don't forget if you press the stator out you will need to press it back in which may be additional grief with the need to make a collar to allow that without damage to the windings.


If you know for a fact that is is just the lead wire shorting out Id consider trying to fix just the lead wire. The difficulty in doing this depends upon how much epoxy, varnish or whatever they put on the windings after everything was wound and fastened. That is can you easily get to the enameld wire termination.

[TechGraphix]

I'm quite sure the windings itself are fine. Only the leads from the coils to the plug have isolation that is cracked. this is the cause of the shortcircuit.
If there is no normal/easy way to push the whole stator out i have to cut some bindings, remove the old isolation and replace it with some teflontubing and try to fix that with some 2-component kit so that the wires will stay away from the rotor.

Kees