Question about Rainbow 75th Anniversary Canister Vacuum

2 Answers

Screw rusted; cannot remove

I was given an older Rainbow, vintage 1986, that I'm hoping to be able to use. However, the screw cap that holds the filter bowl (or whatever that slotted plastic protector is called) on is rusted. So, when I turn the screw cap, the piece (bolt?) beneath turns, also. I have sprayed it liberally many times with Rust-Ez and Wd40, but I cannot grab anything stable to help force the two pieces apart (because the filter blocks the way). I even whacked the cap with a hammer, hoping to JOLT it into submission... to no avail! I then removed the 4 screws from the bottom, but decided I probably can't remove the bottom because of the filter being screwed on! So, I tried to pry the top from the bottom area (where the multiple slots/tabs are between the two pieces), but I'm afraid I'll break it! Is there an easy trick to making the top and bottom pop apart (assuming I can resolve my problem by coming from the top)? What do I do? How can I remove this screw cap so I can clean this machine, and make it work for me? Any help you can provide in removing this screw cap would be greatly appreciated. Thanks! Signed, Screwed Up

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  • NikkiToYou Jan 25, 2008

    Yes, it works. However, it can't be cleaned properly after use, because I can't get the plastic filter/separater thing off, because the screw that holds it in place is rusted on. What ever the screw is rusted/bonded to ALSO turns but is unreachable, so there's nothing to grip to help get the screw off. At least not coming from the bottom of the vacuum in any way I can find. I'm looking for help getting to whatever that screw is rusted to, so I can hold it firmly while I try to twist the screw off. I'll be careful to not damage the armature. I'll soak it and the screw in silicon after I get it apart. Thanks. Signed, Still Screwed Up

  • NikkiToYou Jan 26, 2008

    I was afraid that I'd have to break the separator, as you have suggested... I was just trying to avoid having to do so. Since writing the post, I have seen that replacing the separator is a minor cost (under $5, as you also mentioned.) I'll do as you suggest and be careful with the vice grips. Thanks for all your help. Nikki



2 Answers

Nut, is attached to the motor ( armature) the plastic housing is a cheap replacement but the nut that is attached to the motor is not, crack the plastic housing (looks kinda grayish right) AND ATTACH A VICE TO ONE AND A NEEDLE VICE TO THE LOWER THIS SHOULD WORK,,,,,DO NOT STRIP ANYTHING DONT WORRY ABOUT THE BOLT IT IS A CHEAP REPLACEMENT TO

Posted on Jan 26, 2008


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  • 397 Answers

Ok for one, once you remove the screw hopefully you havent damaged the armature, which is the most important part,,,,1. get vice grips 2. try to get something to lock the sides down, ......question first, do you know if it works, if it does why are you taking the screw off, also if it doesnt its unfortunately probaly not worth fixing, if you need parts off of it just crush the side open..... if you come across another unit that has a screw loose, use silicon on the bolt and screw it will help keep it from rusting...

Posted on Jan 25, 2008


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