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-   -   4000 model Dremel over heats (http://www.woodcarvingillustrated.com/forum/f67/4000-model-dremel-over-heats-54982/)

GinnytooU 09-20-2013 07:08 PM

4000 model Dremel over heats
 
Hi, I have a 4000 model Dremel. I haven't used it in a while and I haven't used it much. Yesterday I was going to use it but it gets to hot. Right where you hold it. Too hot in less than 2 minutes to hold. Can anyone help with this problem? Thank you very much. Ginny

Merle Rice 09-20-2013 07:24 PM

Re: 4000 model Dremel over heats
 
Hi Ginny, I don't have a Dremel Tool anymore and don't remember if it has a place to Oil it, if so it might need to be Oiled. If it doesn't have a place to Oil it then it sounds like a Bearing is bad. Shouldn't get hot that fast. I would call Dremel and tell them the problem, they will fix it for Free, just cost you the Postage. Merle

GinnytooU 09-20-2013 10:44 PM

Re: 4000 model Dremel over heats
 
Thanks Merle. I don't think you can oil these any more. So it could be the bearings. I'll check them and see. Thanks for your help. Ginny

Donsexton 09-20-2013 11:24 PM

Re: 4000 model Dremel over heats
 
Hello Ginny, that little grinder is a great small die grinder plenty of power and speed good bearings as close to pro as you can get under $200. I think the reason its getting hot so quick is not enough free flowing volts. When you have a high amp tool and for a small grinder its a high amp tool it will get hot if you have too much impedance in the circuit. In laymen's terms a drag on the flow of power. If you use an extension cord it should be no less than 12 gauge and keep it short to the outlet no long cords. Here is my other advise and if you read any of my posts then you know I am a "two of the same power tool guy" because they get hot. But in your case it shouldn't get hot in only two minutes of work so I think its a volt restriction and that is usually caused by too small conductors or cords. Hope I was some help to you Texas Girl

GinnytooU 09-21-2013 08:54 AM

Re: 4000 model Dremel over heats
 
Don, no extension cord use. I plug right into the wall. So I'm wondering if it could be something else. Thanks Don for your in put. Ginny

Bandaid 09-21-2013 12:36 PM

Re: 4000 model Dremel over heats
 
One thing to watch for is not to cover the cooling vents while gripping the tool. Just a thought.

GinnytooU 09-21-2013 01:07 PM

Re: 4000 model Dremel over heats
 
Thanks, the air flow is what's so hot ,along with where I hold it right there where the vents are. . It is a puzzle. Ginny

EugeneH 09-21-2013 01:45 PM

Re: 4000 model Dremel over heats
 
My son just told me a couple days ago more people burn out their Dremels by not keeping good brushes in them. Are they in good shape, making good contact?

Think of the two potential areas, electrical and mechanical. They smell different when hot. Mechanical - can you rotate the chuck manually w/o effort and is it smooth and silky? Electrical - does the cord or plug get warm (was that already asked?) and is there a burnt Bakelite or plastic smell?

If not bearing oil o brushes though, I agree, send it in before you actually burn something out.

GinnytooU 09-21-2013 02:21 PM

Re: 4000 model Dremel over heats
 
I thinking it must be the bushing. I'll see if Lowes has the. Thanks a lot Ginny

Dileon 09-26-2013 04:11 PM

Re: 4000 model Dremel over heats
 
I have tools that get hot....the only thing I do is let the tool cool down and use another one. I am like Don.....have more then one of the same tool.


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