Which puller tool? - HF DC impeller conversion

[photostu]

I'm going to do the impeller swap in my HF DC with the Rikon model, does anyone happen to have the puller tool needed to remove the existing impeller or can point me towards which one is correct?
Ideally would not like to buy this for a 1 time only use, but will if need to.

thanks for your time!

 

[McRabbet]

Most of the large chain auto parts stores have gear and wheel pullers available to borrow for free. Check with places like Advance Auto Part, Auto Zone, NAPA Auto Parts, etc.

 

[photostu]

Thank you for the suggestion!

 

[Phil S]

I have a 8” three jaw hub/gear puller it is a Bonney and almost fifty years old
I have not found anything it could not pull off. You are welcome to borrow it

 

[photostu]

Thank you kindly, if I cannot obtain a puller from AutoZone, I'll be in touch soon.

 

[JimD]

If a loan does not work out or if it would simply be more convenient, a puller is the kind of thing I wouldn't hesitate to get from Harbor Freight.

 

[Henry W]

HF now in Cary

... get from Harbor Freight.

Since the OP is in Apex, please note that last week a Harbor Freight store opened in Cary - just north of Crossroads on Walnut Street in the same plaza as the relocated REI; at the corner of Buck Jones and Walnut St.

 

[photostu]

Re: HF now in Cary

I did not know this, thank you for sharing!!

Since the OP is in Apex, please note that last week a Harbor Freight store opened in Cary - just north of Crossroads on Walnut Street in the same plaza as the relocated REI; at the corner of Buck Jones and Walnut St.

 

[Flute Maker]

Re: HF now in Cary

Hi Stu let us know how this change works out for you.I am interested to see how much difference the impeller change makes.

 

[MarkE]

Re: HF now in Cary

I also have a set of jaw pullers that you are welcome to borrow. 3", 4", 6" and 8"

 

[Sean McCurdy]

Re: HF now in Cary

Hi Stu let us know how this change works out for you.I am interested to see how much difference the impeller change makes.

There's a youtube on this, link below.
https://www.youtube.com/watch?v=2NOZTlwHe3A

He saw a pretty decent increase in airflow and suction. Note that it doesn't look like the puller was very complicated.

 

[Flute Maker]

Re: HF now in Cary

I'll check it out .Thanks!

 

[zdorsch]

Re: HF now in Cary

I had to look up the HF dust collector impeller mod and found another thread where the user’s air flow nearly doubled:

https://www.woodtalkonline.com/topic/23656-harbor-freight-rikonstein-dc/

 

[gmakra]

Re: HF now in Cary



You need one of these its called a fan hub puller.
You can try a 3 jaw but chances are you will be sorry when the impeller breaks and the hub is on the shaft.
And reports of doubling air flow are suspect if you study fans you will find a little thing known as the fan laws which say something to the effect of that amps go way up on modest increases in flow.

 

[JGregJ]

Re: HF now in Cary

Noted in the first video, he made his own using wood and screws. Although not shown as to why, there were many screw holes, so suspect it took him several tries to get the placement right.

 

[photostu]

Re: HF now in Cary

This is basically the system I'm going to build:

https://www.youtube.com/watch?v=8v5079FPCsY

I won't use the XL model though, just the regular Super DD. I plan on using 5" HVAC ducting for the mains.

 

[photostu]

Re: HF now in Cary

I also have a set of jaw pullers that you are welcome to borrow. 3", 4", 6" and 8"

Thank you Mark, I'm in Fuquay, so if I can't find a set from AutoZone, I'll give you a buzz.

 

[Henry W]

Re: HF now in Cary

This is basically the system I'm going to build:

https://www.youtube.com/watch?v=8v5079FPCsY

I won't use the XL model though, just the regular Super DD. I plan on using 5" HVAC ducting for the mains.

Hey Stu, please takes notes on what you do here. I have that HF model and a larger model of Oneida's cyclone. So far the performance is underwhelming, but I see a few reasons why when I compare to the video. The impeller change is interesting idea. Do keep us up to date.

 

[Sean McCurdy]

Re: HF now in Cary

View attachment 29136

You need one of these its called a fan hub puller.
You can try a 3 jaw but chances are you will be sorry when the impeller breaks and the hub is on the shaft.
And reports of doubling air flow are suspect if you study fans you will find a little thing known as the fan laws which say something to the effect of that amps go way up on modest increases in flow.

I use the fan laws nearly daily. They are meant for geometrically similar fans. Because these are significantly different profiles, it doesn't apply here. If it did, you'd see about a 70% increase in flow, but 2.5x the power draw.

What is likely happening is a combo of a big change in fan efficiency coupled with not stellar measurement techniques.

 

[gmakra]

Re: HF now in Cary

Sean point taken, however even if the new impeller is more efficient there is still a tax on power draw.