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Author Topic: Stuck gib bolt  (Read 7505 times)

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Offline tyb525

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Stuck gib bolt
« on: September 02, 2009, 08:14:18 PM »
I was changing the blades on my Grizzly lunchbox planer, when I encountered a stuck bolt.

This is the first time I've tried to change the blades. I got the planer in January, and have only planed maybe 100 bd ft, and that's mostly cherry.

I got one blade changed and all the bolts loose on the other except the very last on on the right end of the head. These are the kind the screw "out" in order to hold the blade in the gib.

So in this case I am trying to get the bolt screwed "in". I managed to round the cheap, slightly undersize bolt (of course  ::)), and I can't get it loose with vise grips. I've tried some WD-40, but of course to no avail. I've tried a hammer and cold chisel on the corner to try to turn it, as per Grizzly's instructions. Nada.

I think this is a matter of a steel bolt going into an aluminum head.

I contacted Grizzly, who gladly sent me a replacement bolt, but basically told me I was on my own getting it out. ::)

I can't get to the end of the bolt to drill it out.
I would greatly appreciate some tips on getting this darn bolt out!!
LT10G10, Stihl 038 Magnum, many woodworking tools. Currently a farm service applicator, trying to find time to saw!

Offline Reddog

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Re: Stuck gib bolt
« Reply #1 on: September 02, 2009, 08:40:28 PM »
Ty can you post a picture or a link to a parts break down so I can understand better what you are describing?

Thanks.

Edit I found the manual and I am down loading now.

Offline tyb525

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Re: Stuck gib bolt
« Reply #2 on: September 02, 2009, 08:51:17 PM »
http://www.grizzly.com/images/partslists/g0505_pl.pdf

cutterhead is #17
gib is #16
gib bolts are #21
LT10G10, Stihl 038 Magnum, many woodworking tools. Currently a farm service applicator, trying to find time to saw!

Offline Reddog

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Re: Stuck gib bolt
« Reply #3 on: September 02, 2009, 08:54:13 PM »
Based on looking at the manual, the first thing I would do is use a block of wood on the gib and tap it. This will make sure the gib is seated all the way into the drum. Then see if you can loosen the bolt.
If that doesn't work then I think the next option is to cut the bolt head then you can get the gib out to remove the stuck bolt.

Here is the manual if some one else has a better idea.
http://grizzly.com/images/manuals/g0505_m.pdf

Offline Lud

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Re: Stuck gib bolt
« Reply #4 on: September 02, 2009, 10:16:42 PM »
Don't we get some Rust Reaper or other lubricants in before we cut heads off?  Head rounded?  Drill and Easy Out?  Heat might be tuff...........but cut off the head right away? ??? ???
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Offline beenthere

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Re: Stuck gib bolt
« Reply #5 on: September 02, 2009, 10:32:39 PM »
Great place for the RustReaper to step in (or in the beginning it would have been).  :)
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Offline tyb525

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Re: Stuck gib bolt
« Reply #6 on: September 02, 2009, 10:38:55 PM »
Well, see, I don't think its stuck from rust. There is no way to get an easy out or even a drill bit to it. I'll try to get a picture tomorrow.
LT10G10, Stihl 038 Magnum, many woodworking tools. Currently a farm service applicator, trying to find time to saw!

Offline fstedy

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Re: Stuck gib bolt
« Reply #7 on: September 02, 2009, 11:37:37 PM »
If the Rust Reaper doesn't work I've heard some old timers using a couple drops of battery acid to disolve the corrosion. Steel and aluminum don't work well in screw threads.
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Offline trim4u2nv

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Re: Stuck gib bolt
« Reply #8 on: September 03, 2009, 12:12:06 AM »
I have had some moulder heads in the same situation.  We use a dremel or die gringer with a cutoff wheel made of carborundum and fiberglass.  With some steady handwork as others mentioned you can cut off the head of the bolt.   When the gib is removed sometimes you can heat just enough with an arc welder lead and vice grips to remove the bolt from the gib.   Otherwise a machine shop is called for.

http://www.dremel.com/en-us/AttachmentsAndAccessories/Pages/AttachmentsDetail.aspx?pid=426

Offline DanG

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Re: Stuck gib bolt
« Reply #9 on: September 03, 2009, 03:18:09 AM »
RUST REAPER!  It isn't just for rust.  It is the best penetrating lubricant on the market.

If you feel like you just gotta do some cutting, take your Dremel and cut a nice slot in the top of that bolt head.  Take your good ol' hammer-actuated impact driver, select the right bit, and start tapping on it.  It will come out.
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Offline SwampDonkey

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Re: Stuck gib bolt
« Reply #10 on: September 03, 2009, 04:50:42 AM »
Wood dust and particles can be just as corrosive as plain old water and aluminum will corrode like iron only it leaves gibbsite (Al(OH)3), a precipitate, instead of rust.
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Offline Burlkraft

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Re: Stuck gib bolt
« Reply #11 on: September 03, 2009, 07:58:21 AM »
I had the same exact problem with my Delta planer  >:(  >:(  >:(

Rust Reaper saved the day...and Vise Grips, of course.

Those "just undersize cheap bolts" are now 1/4 X 20 grade 8 bolts    ;D  ;D  ;D
Why not just 1 pain free day?

Offline Jeff

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Re: Stuck gib bolt
« Reply #12 on: September 03, 2009, 08:54:38 AM »
Rust Reaper may nor be effective with dissimilar metals
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Offline Reddog

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Re: Stuck Gib bolt
« Reply #13 on: September 03, 2009, 09:00:19 AM »
Hey Hey Hey, I am all about RReaper. I have bought it by the gallon. 8)

Attached is a pdf of the configuration of these Gib bolts. It is a blind bolt, so if it won't turn then cutting is your last option.

Ty if you can wait for Rust Reaper to be delivered, it may do the job. You would need to keep putting it on for a few days and let it do it's thing. It does seem to work quite well with dissimilar metals, it just takes some time to work.

Burlkraft knows what you are up against. ;D

Online Hilltop366

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Re: Stuck gib bolt
« Reply #14 on: September 03, 2009, 10:37:33 AM »
If there is room you can carefully weld (a wire feed or mig works best) a nut or washer or other piece of steel to the bolt. This will provide some fast heat in just the right spot and something new to put a wrench or vicegrips on. Then move bolt back and forth a small amount while working in some lube. Taking your time and a back and forth motion will help in not twisting off the bolt. If it sticks again add another spot of weld for more heat. Have a good supply of water ready, it is best not to do this around wood dust and shavings.

Online metalspinner

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Re: Stuck gib bolt
« Reply #15 on: September 03, 2009, 03:20:54 PM »
Been there, done that, Ty. >:(

This was with a Delta benchtop.  I used the Dremel to cut a couple of new flat spots. Then I was able to grab hold with the vice grips. 

The Delta used dome headed hex drive screws.  What a pain!  Like Burlkraft, I went with hex heads after that.
I do what the little voices in my wife's head tell me to do.

Offline tyb525

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Re: Stuck gib bolt
« Reply #16 on: September 03, 2009, 08:01:09 PM »
Just ordered some RR!
LT10G10, Stihl 038 Magnum, many woodworking tools. Currently a farm service applicator, trying to find time to saw!

Offline beenthere

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Re: Stuck gib bolt
« Reply #17 on: September 03, 2009, 08:24:03 PM »
You won't regret that.
south central Wisconsin
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Offline olyman

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Re: Stuck gib bolt
« Reply #18 on: September 03, 2009, 09:25:33 PM »
personally--i have found kroil to be the best pene oil, bar none. and the washer welded on top of the bolt, will work wonders a lot of the time. something to get a hold of, and the heat will crack it loose, tho not always

Offline beenthere

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Re: Stuck gib bolt
« Reply #19 on: September 03, 2009, 09:32:53 PM »
I used kroil for years, but RustReaper will leave it "in the dust" IMO. But until RR, kroil was the best available that I knew about.
south central Wisconsin
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