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Used my HF press for first time

edcantu9

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Mar 2, 2013
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607
Location
Southeastern Iowa
To press out a wheel bearing and hub. I was very nervous after reading stories of accidents involving presses.

I had a question, I am getting ready to press in the new bearing. It looks the same to me on both sides, I don't see any arrows or markings that would make me believe it is supposed to go in a certain way. Does it matter which way I press it in?
 
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edcantu9

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Mar 2, 2013
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607
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Southeastern Iowa
And I got to say it felt great to use the press and be able to get it out!! I tried using the cup and screw kit, but it was not easy. I tried avoiding using the press because I was pretty much scared of it and what could happen. I messed around for an hour and using the press it took 10 minutes to set it up and press it out.
 

theoldwizard1

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Feb 22, 2011
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43,237
Location
SE MI
A certain amount of trepidation when using a new power tool (or using one you have not used frequently) is not "fear". It is RESPECT !

I use power saws (circular, reciprocating, table, chain, etc) so little that I am purposely slow and methodical when I pull them out.
 

BOOT

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Nov 9, 2015
Messages
98
The adjustable lower part cracked on my bench top and my friends bigger floor model did as well, both HF presses.

edit: oh and the plate that the pump sits on bent on mine and so did the rod/shaft end about 2" from the tip.
 
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Rogue1987

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Jul 13, 2011
Messages
891
Location
Missouri
Scare the guy some more with your ********.
Did your cast arbor plates break and exploded? Yea, I didn't think so.

One of mine did! Scared the hell out of me, replaced them with some 1" plate I had floating around.

For the price, I love having that press around. Very handy!

Sent from my SM-G900V using Tapatalk
 
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Vantastic

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Jan 1, 2015
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364
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Penns Woods
I am careful with mine but never had a problem. I didnt think the ****** jack could do it. Definitely had some things rigged up and it slipped and made a boom but my cast plates have held up. So far.
 

404

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Aug 23, 2014
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Mass
I use the outer race of the old bearing to press in the new one. That way only the outer race of the new one gets force on it. A "flat" disc or plate may well allow force on the inner race and that is very bad.
 
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edcantu9

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Mar 2, 2013
Messages
607
Location
Southeastern Iowa
I pressed the new one in as well as the hub. When I pressed the bearing it it was flat in the frond and back. After pressing in the hub the bearing on the back was not even. The inner circle was elevated a bit, does this mean I damaged it? I can take pictures if it will help.

I checked the old one I removed, it was also elevated a bit and not flat.
 

PoorOwner

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Feb 10, 2007
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Location
CA
What did you use to press it in? The old one might be elevated because what you used to press it out. As mentioned you should take care not to press the inner race. The bearing race is damaged and will feel unsmooth ..
 
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edcantu9

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Mar 2, 2013
Messages
607
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Southeastern Iowa
Here is some pics.

I pressed it out. Here is the back. As you can see it is slightly raised.

I supported it with a plate and socket in the back ( or bottom of it while on the press). There is also a picture of what I used and how it fit.





 

PoorOwner

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Feb 10, 2007
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It's hard to say I cannot figure this from the pics, but the bearing should not be altered after pressing, it looked like pressure was applied to the inner race due to the plate used.

Does it feel 100% smooth? Should not have any rough or gritty feeling at all.
 

moparfreak

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Jan 24, 2005
Messages
853
Location
Milwaukee, WI
I'm soon going to be doing exactly the same thing, just waiting for the new bearing / hubs to come in from Rockauto for the front knuckles of my Mazda later this week.

Whether you use the screw kit or a press, my understanding is:

1) support the knuckle, press in the bearing and push on the Outer Race only to get it in. Either use a perfectly sized adapter modified or taken from the bearing press kit (HF or similar) or even better to use 404's suggestion to use the old race to press in the new one.

2) Insert snap ring (if yours has one)

3) Flip it over and set up to press the hub into the inner race of the bearing you just installed. The Inner Race has to be perfectly supported against the plates or cup, that way as you press the hub down, the balls / cage don't have to support any of that pressing load, cause they will fail in an instant if the setup is wrong or misaligned and the inner race isn't supported 120%.

Good luck...
 
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