Treadmill motor not working

[xelectech]

Re: Treadmill motor not working

Well then, how about the brushes, are they still of a usable length, and do they seem to have a decent amout of spring tension pushing them down against the commutator? When you got through cleaning the inside of the motor did you check to see that the brushes moved smoothly in the brush holder?

I went back and reread the thread, I'd forgotten that some 'magic smoke' was in the air at the beginning of the thread, would give a lot to know if it was 'motor smoke' or 'semi-conductor smoke' &-)

HTH

[xelectech]

Re: Treadmill motor not working

Hey Jonathon,

Is the treadmill in this link the one you've got?

http://www.manualslib.com/manual/702...t-Ls-925t.html

Sorry to say there's no schematic, just a 'user guide'.

[JonathanAnon]

Re: Treadmill motor not working

Yeah that's the treadmill alright.. I have that user manual but there's not much in it. I found some other tech manuals and stuff online which were helpful but nothing with a schematic... It would be useful if you could see the video, because it demonstrates that the motor keeps going until the magnet (on the front roller) passes the reed switch sensor... it then immediately stops... It's this fact that has me focused completely on the reed switch and the controller feedback system... (as opposed to troubleshooting the motor itself).

Next on my list is to pull out the board and try testing component after component...... without the schema.. :-(

[xelectech]

Re: Treadmill motor not working

"Yeah that's the treadmill alright.. I have that user manual but there's not much in it. I found some other tech manuals and stuff online which were helpful but nothing with a schematic... It would be useful if you could see the video, because it demonstrates that the motor keeps going until the magnet (on the front roller) passes the reed switch sensor... it then immediately stops... It's this fact that has me focused completely on the reed switch and the controller feedback system... (as opposed to troubleshooting the motor itself)."

That does sound pretty much like the board then - when I get to the library next I'll see if I can look up the videos (youtube is sooo cool, huh?)

"Next on my list is to pull out the board and try testing component after component...... without the schema.. :-("

Once you post some pictures of the board(s) I'm sure there'll be someone who can suss out how the circuit is supposed to work, some of these guys here are awesome. If the
boards have any numbers on 'em that may lead to more info on 'em, too, though I suppose you might already have tried that route some.

Just wondering, bout how many miles does it have on it, any idea?

[JonathanAnon]

Re: Treadmill motor not working

My friend has been using the treadmill for about 8 years, probably does about a half hour on it every day...

To eliminate ANY possible issue with the reed switch, I rigged up this (see pic below) from an old window alarm and put it in place of the original.. It acts exactly the same.. If I leave the reed switch away from the magnet on the roller, the treadmill keeps going for a while... but as soon as I put the reed switch beside the magnet, the treadmill shuts down...

Cant get the controller board anywhere.. (I was just going to buy another one to eliminate it).. So I'm going to have to try to troubleshoot it.. I'll take it out later today..

[xelectech]

Re: Treadmill motor not working

"My friend has been using the treadmill for about 8 years, probably does about a half hour on it every day..."

Sounds like it's provided pretty good service then, up to now.

"To eliminate ANY possible issue with the reed switch, I rigged up this (see pic below) from an old window alarm and put it in place of the original."

The speed control I've seen on any treadmill I've looked at reminds me of the add-on MPH
read-outs you can get for a bicylce, except that I'd think that a treadmill might want some kind of indication if the sensor was missing, since it's important that the belt not all-of-a-sudden speed up to 20 mph (30 kph) or something; or, all of a sudden stop, for that matter &-)

[JonathanAnon]

Re: Treadmill motor not working

Okay, I think I've made some progress..

I took out the motor again to give it another look.. When it was originally given to me there was one of the teeth on the optical wheel (rpm sensor) was bent... I assumed that it had come like that originally.... I checked an image of an optical disk on one of the spares websites and it appeared to me that it should be completely flat... I got the long nosed pliers and straightened out each of the teeth..

Put the motor back in and it seems to be working fine now...