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Gettin' fixina tune up my Unisaw #16: Changing the arbor bearing... finally!

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Blog entry by Bothus posted 10-03-2009 07:36 AM 6424 reads 0 times favorited 17 comments Add to Favorites Watch
« Part 15: It's not as bad as I thought Part 16 of Gettin' fixina tune up my Unisaw series Part 17: Took the Unisaw home today »

Today I finally got a chance to work on my Unisaw again. I wasn’t really sure what I was doing (like I needed to tell you that) but I got it done.


Relax.

I know there are a lot of videos here but most are less than one minute. I just watched the whole thing in about in a little over 20 minutes.

Please feel free to comment. I need to know what I’m doing right and what I could do better.


We will learn together.


Removing the blade shroud.


Blade shroud removed.


Removing the arbor bolt.


I should have bought a pulley puller


I’ll take the motor off first.


Switch wiring.


Geesh!


One of my favorite things.


You just sit there and think about what you did.


It never fails


Just so you know.


I better catch that pulley.


That’s close enough, Dude.


I didn’t throw my back out yet.


Let’s get those bearings out.


Now I know.


It’s not my fault.


Thank you Alex Noda.


I let the bearings sit in the sun and put the arbor in the freezer. Ooow, that’s cold.


I’ve got a piece of maple.


Where’s that Liquid Wrench?


Good thing I got the book.


I better double check everything.


I’m on my last leg here.


It’s important.


ALL DONE!

Enjoy!

;;
J

-- Jerry Boshear, Professional Kitchen Designer, amature woodworker.



17 comments so far

View Scott Bryan's profile

Scott Bryan

27251 posts in 3283 days


#1 posted 10-03-2009 12:27 PM

Nice set of videos. I did sit through them all! One benefit of these that I did not realize is that they can help you reverse the process. I can assure you that if I tried something like this I definately would end up with a few parts left over at the end. I have always assumed that is the mark of a job that is done right. :)

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View Bothus's profile

Bothus

439 posts in 2637 days


#2 posted 10-03-2009 04:45 PM

Yeah Scott. that is a trick I learned years ago (back when it really was video “tape”).

I bought a carburetor rebuild kit for my old Ford Faimont and the instructions suggested that you video tape yourself disconnecting all the hoses Sure enough when I was putting the newly rebuild carb back in the car I had one hose left over. I went and watch video tape and it saved my butt.

Thanks for watching. I watched them myself. I think I need a wingman to let me know when I use the wrong words. I noticed at one point I called a bearing and pulley and another time I referred to the arbor bracket as the arbor… I always mix up my words.

Take care,

Bothus

-- Jerry Boshear, Professional Kitchen Designer, amature woodworker.

View ChunkyC's profile

ChunkyC

856 posts in 2715 days


#3 posted 10-03-2009 05:52 PM

The best thing about taking pictures, being moving or still, you can always go back and see how it used to look and goes back together.

-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135

View MedicKen's profile

MedicKen

1610 posts in 2923 days


#4 posted 10-03-2009 06:23 PM

Jerry…....Nice job. Now that you have fresh bearings you should be good to go for the next 20 yrs or so. When you get to replacing the motor bearings dont be surprised to find it packed with sawdust. There will be dust everywhere, in the wire connection box, and inside the motor. Clean the outside really well before disassembly. Before disassembly you should mark the bell ends of the motor and the rotor housing in some way so when reassmbling the parts can be lined up in the exact orientation prior to removal. You can draw a couple of lines across the joint with a sharpie or use a punch to put dimples as witness marks. You will also want to measure how far the pulley extends from the motor housing. Place a straight edge on the pulley and measure it from the bell. Dont forget the measurement, you will need it when getting things back together. The measurment is critical so the pulleys will be aligned after reassembly. The motor will be dirty inside. Use some compressed air and a light touch with an old toothbrush to remove the dust and grime. You will most likely need a puller to get one or both of the bearings off the rotor shaft. Good luck!!

-- My job is to give my kids things to discuss with their therapist....medic20447@gmail.com

View Mike's profile

Mike

247 posts in 2844 days


#5 posted 10-04-2009 01:04 AM

Nice job with the video. Can’t wait for the next one. Thanks for sharing.

-- Mike, VT

View dmorrison's profile

dmorrison

150 posts in 2723 days


#6 posted 10-04-2009 01:11 AM

A wonderful series of videos. I belong to a Mercedes forum for old (80’s) Mercedes diesels and we do pictorials of various jobs. I will probably download all of your videos and posts. The information is invaluable for any cabinet saw. I know this is for the Delta Unisaw but the majority are copies of the Unisaw and the idea is great.

Thank you for doing the videos, and keep posting. I looked at a Delta 37-190 jointer that was pretty used by the guys in his shop. I may consider talking to the guy and if he will lower the price I may do the same thing. Video the rebuilding of the jointer.

Dave

View ChunkyC's profile

ChunkyC

856 posts in 2715 days


#7 posted 10-04-2009 01:13 AM

I love these types of projects. I like being able to figure out how it comes apart and goes back together again. But the part of it is that if you ever have any issues with the saw, you knew exactly how to get at it to fix it.

Did you take some emery cloth or similar to the burger where you marred the surface?

Chunk

-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135

View bigike's profile

bigike

4049 posts in 2749 days


#8 posted 10-04-2009 01:37 AM

i just want to know how long it took before u had to change the part or parts?

-- Ike, Big Daddies Woodshop, http://www.icombadaniels@yahoo.com

View Bothus's profile

Bothus

439 posts in 2637 days


#9 posted 10-04-2009 05:52 AM

Ken, thanks for the information about the motor bearings. I do plan to do that next.

Mike, don’t get your hopes up for the next video. It’s just me explaining why I was taking the saw home today.

Dave, thanks for the encouragement. Where is Colleyville, Texas? Our daughter went to TCU 13 years ago and never came back. Her and her hubby live in Willow Park now. Do you fly LAX to DFW? If so, we may see you when we go there for Christmas.

Chunk, I did clean up the buggering. Thanks for asking.

Bigike, I believe those were the orignal arbor bearings. The saw is 16 years old.

Thanks for your comments and questions guys.

;;
J

-- Jerry Boshear, Professional Kitchen Designer, amature woodworker.

View Mike's profile

Mike

247 posts in 2844 days


#10 posted 10-04-2009 03:15 PM

The video is a great idea! I was thinking about all the video and thought wouldn’t that be a great idea if the saw manufactures actually had something like this. Like if you bought a new table saw, it would come with a disk with important information.

-- Mike, VT

View Bothus's profile

Bothus

439 posts in 2637 days


#11 posted 10-04-2009 05:04 PM

Wow thanks Mike. That is the first time anyone has used the term “important information” in the same sentence with my videos.

Bothus

-- Jerry Boshear, Professional Kitchen Designer, amature woodworker.

View Mike's profile

Mike

247 posts in 2844 days


#12 posted 10-04-2009 05:48 PM

There a wealth of information to a video. How many times do we get these manuals that come in about 5 different languages, not that it is a bad thing. I end up tossing out all of the stuff that I don’t need. I look for illustrations in a manual, a breakdown of the parts. The vides are educational. Since I don’t own a cabinet saw yet, the series of video gives a wealth of information.

-- Mike, VT

View dmorrison's profile

dmorrison

150 posts in 2723 days


#13 posted 10-04-2009 07:49 PM

Colleyville is just west of the DFW Airport, in the center of the Dallas Ft. Worth metroplex.

Dave

View Brrman's profile

Brrman

60 posts in 2133 days


#14 posted 02-18-2011 07:49 AM

I know this is a pretty old post, but I just have to say thanks to you Jerry. I just bought the exact model saw you have and I’m going to replace the arbor bearings and belts next weekend. It’s extremely helpful to actually see the video and hear your “discoveries” along the way

Bryan

-- "Being a perfectionist does not make one perfect..."

View Bothus's profile

Bothus

439 posts in 2637 days


#15 posted 02-18-2011 04:36 PM

Thanks for commenting Bryan. I’m glad I could help. Keep us posted on your progress.

Jerry

-- Jerry Boshear, Professional Kitchen Designer, amature woodworker.

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