Now it works, but I don't know why

[kb2vxa]

OH! I just remembered something about small motors. The thermal cutout is a small glass capsule containing a self resetting bi-metal thermostat and covered by a soft plastic sleeve buried in the windings where it's hard to find.

"I just didn't get around to looking at it until today and it didn't run when I tested it before beginning my repair efforts."

That makes the brushes suspect number one.

[PA5COR]

That's why i run a 1000 watt 230 volt 50 Hz mains powered lawn mower...

[K7SGJ]

That's why i run a 1000 watt 230 volt 50 Hz mains powered lawn mower...

I doubt he has an extension cord that would reach from your place to his.

[KK4AMI]

That's why i run a 1000 watt 230 volt 50 Hz mains powered lawn mower...

Good enough reason to not mow the lawn in the rain :shock:

[PA5COR]

Double isolated extention cord is 40 meters, so if you are as close as that i'll help ;)

[AE1PT]

OH! I just remembered something about small motors. The thermal cutout is a small glass capsule containing a self resetting bi-metal thermostat and covered by a soft plastic sleeve buried in the windings where it's hard to find...

Yup. Lots of times there is a bunch of fabric tape holding it to the winding--and you can't find it unless you cut the tape loose.

[kb2vxa]

That too, only it's fiberglass tape that won't break down with heat and age like organic materials do and cause a short.

[AE1PT]

That too, only it's fiberglass tape that won't break down with heat and age like organic materials do and cause a short.

I guess that shows a)How old I am, and b)How long its been since I tore anything like this apart.

My recollection is of that old canvas like tape that had the awful white adhesive that either turned to powder--or a horrid sticky gum. Or for greater fun the tape disintegrate and leave the sticky gum all over the place.

And lest we forget that nasty yellow plastic tape that never stayed stuck on the windings...

[kb2vxa]

HAH! You reminded me of the good old days of electric motor and transformer repair! (;->) Oh yeah, that white adhesive tape, probably that same nasty stuff made by Johnson & Johnson used to stick gauze bandages that hurt like hell when peeled off and left a white sticky outline. I remember that yellow cellophane tape with the non stick adhesive, it never stuck to anything let alone STAYED stuck for more than 5 minutes. When it peeled off there were clear spots in the tape and yellow specks on whatever you tried to stick it to. BTW I never repaired a fan made between 1920 and 1970, they were made out of metal and wore like iron (pardon the pun) and ran like... forever. Then along came cheap plastic, porous bronze sleeve bearings and felt oil pads that dried out with no way to get a tube in there to oil them. Permanently lubricated motors they called them, permanent until they seized up and burned out. Never repaired one of those either.

[N2NH]