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Author Topic: Blade tracking  (Read 2253 times)

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Offline Southwood

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Blade tracking
« on: December 10, 2017, 09:06:14 PM »
I have had a woodland mills HM126 for 2 years now, warranty was up last week. Since day 1 have had nothing but problems with blade tracking. The follower side (non drive side) would always throw the blade back no matter what I tried & whatever suggestions their tech people gave me would not work. It is really frustrating when you have so much time & money invested to make no progress. Anyhow today I think I have finally found the problem, the threads of the tracking bolt & nut that it screws into are flattened & stripped (not sure why they didn't use a higher grade nut & bolt). The nut is welded to the carriage & cant be fixed without major fabrication. Anyone ever have this problem & if so how did you fix it? I'm gonna call woodland mills in the morning to see if it will be covered by warranty since it only ran out last week & that this has been an ongoing problem since day one. My last question is should the blade be sitting level? Mine has always had a backwards tilt to it. Changing the vertical tracking has no affect on the blade. Since I have had the mill I have had to replace wheel bearings, throttle cable, clutch, on & off switch, rollers & guides,  several drive belts, & way too many blades for very little saw time.

Offline Southside logger

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Re: Blade tracking
« Reply #1 on: December 10, 2017, 09:09:23 PM »
Hopefully they come good on fixing the issue.  But in the event they don't could you re-tap the nut either to a larger size or use a heli-coil kit to get holding thread and avoid replacing it?   
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Offline pineywoods

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Re: Blade tracking
« Reply #2 on: December 10, 2017, 09:18:53 PM »
Where in arkansas ?   Blade tracking shouldn't be too complicated.
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Offline POSTON WIDEHEAD

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Re: Blade tracking
« Reply #3 on: December 10, 2017, 09:26:24 PM »
Where in arkansas ?   Blade tracking shouldn't be too complicated.

Hey Y'all....watch this.....
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Offline Southside logger

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Re: Blade tracking
« Reply #4 on: December 10, 2017, 10:00:15 PM »

Hey Y'all....watch this.....
( old saying )

Hold my beer.... 

(famous last words)  :D
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Offline Southwood

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Re: Blade tracking
« Reply #5 on: December 11, 2017, 05:00:45 AM »
I'm in mena arkansas. I doubt I could go with a bigger bolt, because the bolt is designed to sit in the tracking bar. The bar is drilled for 1 size bolt. I guess I could always try & tear it apart & drill the bar to accept a bigger size if I had to.

Offline Kbeitz

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Re: Blade tracking
« Reply #6 on: December 11, 2017, 05:38:57 AM »
Could you post a picture of your problem... ?
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Offline Skipper11A

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Re: Blade tracking
« Reply #7 on: December 11, 2017, 09:23:35 AM »
You finally found the problem...that was the hard part!  Fixing it is easy.  You'll need to cut off the old nuts with an angle grinder with a cutoff wheel and weld new nuts on.  You might also consider using a jam nut to lock in your adjustment and spread the load to more of the bolt's threads. Somebody you know can cut and weld steel.  Ask your friends. I'm thinking about farmers.  Also, Cook's saw has a lot of youtube  video's about sawblade alignment that may be helpful.

Offline Kbeitz

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Re: Blade tracking
« Reply #8 on: December 11, 2017, 09:33:48 AM »
Welding new nuts on is what I had in mind but I would like a picture
to see what you had. I you do weld a new nut on look into the long nuts.

 

 
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Offline Den-Den

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Re: Blade tracking
« Reply #9 on: December 11, 2017, 09:38:22 AM »
Sounds like a new nut and bolt will be required to fix what you found.  Consider the possibility that the stripped threads are not the cause of all your problems but only a symptom.  The blade should be level with the track, if it is not there is an alignment problem.
You may think that you can or may think you can't; either way, you are right.

Offline drobertson

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Re: Blade tracking
« Reply #10 on: December 11, 2017, 10:35:16 AM »
I agree with the skipper, once you get down to cutting/grinding off, and having the new hardware back on,,make arrangements for a tad bit longer adjusting bolt to allow for the locking/jam nuts.  I thought the same thing, jam nuts really help control things from working,
only have a few chain saws I'm not suppose to use, but will at times, one dog Dolly, pretty good dog, just not sure what for yet,  working on getting the gardening back in order, and kinda thinking on maybe a small bbq bizz,  thinking about it,

Offline Southwood

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Re: Blade tracking
« Reply #11 on: December 11, 2017, 11:03:37 AM »
Will add photos when I figure out how to do it. I'm new to the forum so I'm still learning. Wish I could weld, but I have epilepsy & am unable to weld. Flashing lights can trigger my seizures. I got off the phone with woodland mills & have to wait for a decision. They said I may have to remove engine & replace whole assembly. Very frustrating since I don't even think I have milled 30 logs since owning it. Have wasted too many logs trying to troubleshoot a bad mill. I think my mill is a lemon. Since owning I've had to replace throttle cable, on/off switch, bandwheel bearings, guide rollers & bearings, clutch, & way too many blades. Now I'm expected to tear the whole mill apart. Very bad situation I'm in.

Offline Southwood

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Re: Blade tracking
« Reply #12 on: December 11, 2017, 12:54:05 PM »
Here are some pics.


Offline DbltreeBelgians

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Re: Blade tracking
« Reply #13 on: December 11, 2017, 03:15:18 PM »
Threads have gaulded up. Lack of lubrication and or too much force applied for the quality of material. You could cut the nut off and have someone weld on a new nut. Another option would be to drill it out oversized and retap next size up if there is enough material left to do so. I canít tell from the photo what size the bolt and nut are so the second option may not be feasible and I canít see what the bolt is pushing or pulling on. Others will surely chime in on other ideas that may be a better option.
Also working with Woodland Mills may be your best option seeing all the issues you mention that youíve had. Iíve heard many good comment about them and I have no doubt they will work with you to make your mill function properly.
Good luck and let us know how things go.

Brent

Offline Kbeitz

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Re: Blade tracking
« Reply #14 on: December 11, 2017, 04:09:13 PM »
Since you don't weld you'r best bet would to tap it out to the next size.
I'm betting the next size up will be metric so you will need to change your
bolt also.
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Offline goose63

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Re: Blade tracking
« Reply #15 on: December 11, 2017, 04:16:42 PM »
Southwood a 4 inch grinder with a cut off wheel will get that nut off there.

Wish I were closer to you would only take a few minutes to fix that.
goose
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Offline drobertson

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Re: Blade tracking
« Reply #16 on: December 11, 2017, 04:25:06 PM »
KB does have a good idea there, but rather than looking to metric, and not really knowing the bolt size, guessing 1/2-13?  I would be more inclined to get a reduced shank 33/64, .515 drill bit, they will fit a 1/2" drive, drill motor, then tap for a 9/16-18 fine thread, just me, but getting away from grinding and welding and all that, I"m all for that route, just lazy I reckon, you still have to get bolts and nuts, this way its bolts, and I still would get the lock/ jam nuts to hold it once the alignment is there,,old saying lots of cats and ways to skin'em
only have a few chain saws I'm not suppose to use, but will at times, one dog Dolly, pretty good dog, just not sure what for yet,  working on getting the gardening back in order, and kinda thinking on maybe a small bbq bizz,  thinking about it,

Offline Slingshot

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Re: Blade tracking
« Reply #17 on: December 11, 2017, 09:30:03 PM »

   Came from China.......Probably metric......





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Offline Southside logger

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Re: Blade tracking
« Reply #18 on: December 11, 2017, 09:59:02 PM »
Sounds like a new nut and bolt will be required to fix what you found.  Consider the possibility that the stripped threads are not the cause of all your problems but only a symptom.  The blade should be level with the track, if it is not there is an alignment problem.

Logically I would agree with that statement, but look to the owners manual and the manufacturer for that answer.  On my mill the non drive side is 1/16" higher than the driven side when doing a full alignment, per the WM owners manual.  I was surprised to see that but in the case of my mill the blade pulls down upon engagement with the log, so you set it 1/16" higher on that side. 
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Offline Southwood

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Re: Blade tracking
« Reply #19 on: December 15, 2017, 04:47:32 PM »
The welder was here today & replaced that bad nut. I was excited to get it done. I figured I would be up & running today, but no luck. I went to adjust the drive side tracking & that nut & bolt are messed up as well. I called woodland mills & they want to send more parts to try & fix this 2 year old tracking problem. Upon further inspection I noticed my bandwheels are not spinning true. My question is could bad wheels be causing all my problems? My mill is like new & I have way to many problems to mention for only cutting 30 logs if I'm lucky. They will not replace the mill, but said I can resell it. Anyone wants to buy a mill  :-[?I need to find the problem & fix it


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