Question about Bosch RotoZip Spiral Saw RZ10 - 2100

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My ROTO ZIP RZ10 burned out after less than 3 hours (Total time, not continuous use) I'm using it with 1/4" shaft Kutzal bits for wood carving. I keep it clean, blow it out etc. Does this tool have a built in overload?

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  • rvc6 Mar 02, 2009

    Hi, thanks for your response. I use it, the rotozip, for carving wood with kutzal bits, and never had a problem. This morning, 3-2-09, went to carve and for some some reason it heated up immediatley, than stopped completely, dead. I let it cool down, nothing. One thing I did notice was when I plugged it, turned it on, and shook it, it tried to start. So I figured before I try taking it apart, I'd see if anyone else had this experience.



    Thanks

  • rvc6 Mar 02, 2009

    Thanks, I called Rotozip, toll free number, nice people. They said send it to their service in Racine WI. and they'll fix it.



    Thanks again

  • rvc6 Mar 03, 2009

    Hi, I want to thank all for responses on my ROTOZIP. I'm going to push the envelope and ask a few more questions: Can anyone recommend a power tool for my 1/4" shaft Kutzal bits? For years I had a SEARS die grinder, worked fine but only had one speed, FAST! about 25,000 rpm. (I think) it finally bit the dust, which is why I bought the ROTOZIP (DREMELS are great but too small). One more question: how do I clean gum, pitch(?) out of my bits?



    Thanks again, Bob

  • Jim London
    Jim London May 11, 2010

    Hi again, Well, the symptoms you describe are typical of bearing failure, but generally if you spin the bit you can feel the gravel like feeling of bad bearings, that is if it will move at all. Check the brushes, the cooling fins and the fan. The earlier models were not as durable as the newer ones. A lot of folks wanted a bigger rotary tool than the Dremel and not as big as a router so they used the Rotozip for that purpose.( like you are using the kutzal bits). The Rotozip was designed as a spiral saw and can't take much downward pressure, which may cause the failure of the shaft end at the rear of the unit. In any case you will find the problem when you open it if it is out of warranty. Good Luck and let me know what you find!

  • Jim London
    Jim London May 11, 2010

    Hi, When you say burned out, what do you mean, did smoke roll from the unit? I have had 3 rotozips and do not believe they have overload protection as I have used mine in construction till they were so hot you needed gloves. The first one, I had threw the fan and it was within a year. ( first year they came out) I sent it back and they sent me a new one with extra bits and the latest improvements. They seem to stand behind their products so since you only have three hours on it, I would return it under warranty.I would like to know the failure mode.

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Hi again, I think you will be happy you opted for the warranty solution, I told you they stand behind their products, Thanks for sticking with it and I'm glad we could help Fixya!

Posted on Mar 02, 2009

  • Jim London
    Jim London Mar 03, 2009

    Hi again, I am going to post your question in the lounge where I can get some good answers. I don't know if it will help or not but in my shop I have a flexible shaft grinder that has its own motor that I use for some detail work but it is like free handing but you can see better than you can with the Rotozip! Thanks for your rating and I will post back to you if I get some good responses.

  • Jim London
    Jim London Mar 08, 2009



    Comment by Idaho_Biker
    March 07, 2009 10:05 pm






    Depending on the Type of Wood, You can either Use Grain Alcohol (91%), or Mineral Spirits to Clean Pitch(Gum)from Your Bits...
    "My
    Opinion": Rotozip & Dremels are BOTH too light Duty, I Prefer using
    Foredom or Dumore (I use a 1/3HP Foredom with a 48" Flex Shaft &
    Suspended Motor-I can Chuck up 1/8", 1/4" & 3/8" Collet-Type Bits,
    and a 5/8" Tool-Holder/Pencil Grip Style...I Use my Foredom Mostly for
    Aluminum Polishing, Detail Work on Lathe(Wood)Projects, and Free-hand
    Carving on Custom Wood Signs)..It's NOT the "RPM's" it's How Much
    TORQUE your Tool Has!!
    So, does this mean We get to "Share" the Rating Solution, LMAO....


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