Now the Motor Just Humms

geopicker · Post by **geopicker** » Fri Dec 05, 2008 12:15 am

Well,

I have been posting threads for a few weeks trying to get this Mark VII motor to work. So I replaced the power cord with a 20 foot 12 gauge one and plugged it directly to an outlet. And finally it worked and was up to speed. But after a minute it stopped and now just humms.

So, now what is the problem?

Does anyone have any ideas?

Frustrated Mike

a1gutterman · Post by **a1gutterman** » Fri Dec 05, 2008 1:16 am

geopicker wrote:Well,

I have been posting threads for a few weeks trying to get this Mark VII motor to work. So I replaced the power cord with a 20 foot 12 gauge one and plugged it directly to an outlet. And finally it worked and was up to speed. But after a minute it stopped and now just humms.

So, now what is the problem?

Does anyone have any ideas?

Frustrated Mike

Did you replace the switch like Bill Mayo suggested? Did you take it to a shop and have it looked at? Did you replace the capacitor? Am I wrong in thinking that you bypassed the switch and wired your new cord directly? Doing that might be a mistake, as I understand the motor, through the switch, is reversible.

geopicker · Post by **geopicker** » Fri Dec 05, 2008 10:20 am

Tim,

I have not tried all those things yet. What I have learned so far is that this model has to be plugged in directly to an outlet. So far all I have really done is re-wire the power cord to its original location, and it was working for a minute. Now, this new problem arose, the humm. So this thread was just to see if the humm meant something to someone. I appreciate all the ideas but sometimes someone will just knows the answer, and it is good to check.

I can go through and just start changing everything out, and maybe that is what I have to do. My next step would be to change the switch and capacitor. If that does not work then maybe I will take it in. The problem is that I do not what to pay someone to tell me what I already know or to just go through all the switching out steps that I can do.

This is fun but a bit frustrating sometimes.

Thanks,

Mike

dusty · Post by **dusty** » Fri Dec 05, 2008 10:34 am

Selective changing of components is often my methodology but....I have learned over the years that sometimes you would be better off allowing an expert (in this case a reliable motor shop) to take a crack at it.

The fact that you are not kicking the breaker is a good sign. The fact that it did run some is also a good sign.

However, plugging it in and turning it on too many times without fixing the problem could result in irreversible damage.

I just priced a rewind job on the 1 1/8hp motor for a Mark V. It will be cheaper to buy a new motor. However, for you, I am not sure there is a new "drop in" available.

Maybe someone like BillMayo will jump in here and give advise along that line.

geopicker · Post by **geopicker** » Sat Dec 06, 2008 9:08 pm

All,

Thanks everyone for your all your help trying to figure out this Shopsmith motor. It is finally working. Turns out it seems that it may have been either that I had it plugged in through a power cord or that the cord was bad. Once I out on a new 20 foot 12 gauge cord on and plugged it directly into an outlet (also hit it with a rubber mallet a few times) it worked.

I hope it stays working.

Mike

charlese · Post by **charlese** » Sat Dec 06, 2008 11:55 pm

I love mallet technology best of all!!!:D

Shopsmith Forums

Now the Motor Just Humms

Now the Motor Just Humms

Its Working, Finally