Need advice/help - HF DC Mods

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Forum topic by AlmostRetired posted 07-23-2018 02:23 AM 525 views 0 times favorited 1 reply Add to Favorites Watch
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217 posts in 860 days

07-23-2018 02:23 AM

Afternoon LJer’s,

While I was on my recent deployment I ordred all of the stuff for the ultimate HF DC Mod. The rikon impeller, Wynn filter, Super Dust Deputy, extra hose, plugs, remotes, and all the fixings. Today I finally went to put it all together and couldn’t get the impeller off the shaft of the motor…no matter what I tried.

So, here are the questtions.

Am I missing something for the removal of this thing. Every video i’ve watched, and post/blog I’ve read about this mod…and I think I’ve read them all…states that you just pull the one hex nut off and use a puller tool of some sort to pull it off. Nobody seems to have problems getting it off. I tried so hard that I ended up breaking the lip off the impeller center post. I even went so far as to drill three equally spaced holes through the stock impeller, right next to the center shaft, and tried pulling from there. I ended up doing nothing but bending the shaft on my pullers….both pairs I tried.

If I buy another HF DC to use a new motor for the mod…since i’m already invested into the build….am I going to run into the same problems or has the last three years of outside storage been tough to the DC that I had and that is the problem.

If you were in my shoes and all you really need is the blower/motor peice would you just purchae another HFDC or would you buy something else. I saw that Penn State Industries sells a 3HP model for almost $400. If I were to buy that then I think I should sell all the parts and pile up the $$$ and just buy a Mini-Gorilla or something of the sort that already comes with a two stage.

Thanks for the feedback everyone.

1 reply so far

View BobAnderton's profile


283 posts in 2936 days

#1 posted 07-23-2018 03:36 AM

Interesting. So, all you need to do is get the old blower impeller off. Cut the old impeller off with angle grinder with a cut off wheel, followed by a cold chisel and hammer when you get up really close to the motor shaft? Also, soak that impeller/motor shaft with PB blaster or the like if you go back to trying to pull it. I think you’re right. It’s just a remove the nut and pull it off operation. I think you need to not let it beat you.

-- Bob Anderton - Austin, TX - Nova 3000 lathe, Alaskan Mark III mill, Husqavarna Saw

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