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Author Topic: woodmizer blade tensioner  (Read 6504 times)

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Offline Buck

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woodmizer blade tensioner
« on: April 15, 2011, 07:31:32 am »
A small problem always pops up when i hit the road sawing. The blade tensioner on my lt40 gave out during a blade change yesterday. I have the parts located and will be picking them up this morning. Is there any difficulty in this rebuild?
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Offline ellmoe

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Re: woodmizer blade tensioner
« Reply #1 on: April 15, 2011, 07:38:37 am »
 We just rebuilt ours yesterday. The only problem was those "too small" allen head screws. We could only get one out. I took the unit to a machinist to have the others removed. If you run into the same problem you may be able to loosen them by tapping with a small chisel. It was quicker for me to drop it off and have it done. I'll replace the screws with cap heads later. As for now,I coated the screws with "anti-seize".
Mark
Mark, Wildlife Biologist (in my previous life), now 2 HD40E25's, Weining Promat, Koetter Kilns (2), Sore back and arthritic fingers!

Offline Magicman

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Re: woodmizer blade tensioner
« Reply #2 on: April 15, 2011, 07:57:49 am »
That was a very simple rebuild.  I didn't have anyone there to take any pictures, and my hands were too oily to fool with the camera.  Refilling the reservoir with ATF took the most time.

I only rebuilt half of mine, the tightening side.  The entire unit would have to be removed to replace the bandwheel side and mine wasn't leaking, so I let it be.  The kit has the seals for both sides.
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic/Lombardini/Kohler

Never allow your "need" to make money to exceed your "desire" to provide quality service.....The Magicman

Offline sparks

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Re: woodmizer blade tensioner
« Reply #3 on: April 15, 2011, 09:44:27 am »
Here are the rebuild instructions and the refill instructions. Hope this helps.
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Offline Magicman

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Re: woodmizer blade tensioner
« Reply #4 on: April 15, 2011, 10:27:54 am »
Here is a picture of a failed rubber seal.  It had actually extruded between the piston and the cylinder wall.
 


Failed blade tensioner rubber seal.

This is my refill bottle with a tube spout.
 


I don't actually remove the threaded tensioner, just screw it all of the way out.
 


Refilling the reservoir. 
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic/Lombardini/Kohler

Never allow your "need" to make money to exceed your "desire" to provide quality service.....The Magicman

Offline Magicman

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Re: woodmizer blade tensioner
« Reply #5 on: April 15, 2011, 10:32:48 am »
A small problem always pops up when i hit the road sawing.

My blade tensioner failure actually prompted my Comfort Zone thread.  It happen the week before I was scheduled to travel that 160 miles one way.  If it had waited a week later, that $15 break down would have cost me big time.
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic/Lombardini/Kohler

Never allow your "need" to make money to exceed your "desire" to provide quality service.....The Magicman

Offline Buck

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Re: woodmizer blade tensioner
« Reply #6 on: April 15, 2011, 04:57:31 pm »
Awe, I'm actually ashamed that I questioned this task. I think the phrase "So easy a caveman can do it" applies here. ::)


And.... Thanks guys!
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Offline Magicman

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Re: woodmizer blade tensioner
« Reply #7 on: April 15, 2011, 10:10:27 pm »
But, your experience may help someone else to not fear jumping into an unknown maintenance item.  We all learn from sharing our experience with each other.   ;)
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic/Lombardini/Kohler

Never allow your "need" to make money to exceed your "desire" to provide quality service.....The Magicman

Offline Norm

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Re: woodmizer blade tensioner
« Reply #8 on: April 17, 2011, 08:51:45 am »
Mine needs to have this done, where are you guys finding the bottle with the long flexible tube at?
WM LT30HDD-E25

Offline customsawyer

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Re: woodmizer blade tensioner
« Reply #9 on: April 17, 2011, 08:56:00 am »
When I had a LT40 I would just use the spray bottle that I used to lube the rail and chain. You will miss the small hole a bit but not enough to worry about.
Two LT70s and to much other support equipment to mention.
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Offline Magicman

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Re: woodmizer blade tensioner
« Reply #10 on: April 17, 2011, 09:30:13 am »
Mine needs to have this done, where are you guys finding the bottle with the long flexible tube at?

Many parts stores have a display of the oilers at the checkout.  I'll look and see if I may happen to have an (almost) empty one.
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic/Lombardini/Kohler

Never allow your "need" to make money to exceed your "desire" to provide quality service.....The Magicman

Offline Norm

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Re: woodmizer blade tensioner
« Reply #11 on: April 17, 2011, 09:51:43 am »
Thanks for the offer MM but I don't want to impose on you. I'll have Patty look when she's there on Monday getting a battery for the 4 wheeler.
WM LT30HDD-E25

Offline Chuck White

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Re: woodmizer blade tensioner
« Reply #12 on: April 17, 2011, 11:10:17 am »
Mine needs to have this done, where are you guys finding the bottle with the long flexible tube at?



Norm;
I just use a common plastic pepsi bottle.

I located some clear plastic tubing similar in size (1/8 inch or so) to the tubing on a bike or 4-wheeler battery vent!

I drilled a hole, slightly smaller than the tubing in the middle of the pepsi bottle cap and squeezed the end of the tubing and pushed it through the hole in the cap.

Once inside about inch I just flexed it a little and it expanded outward against the drilled hole.

Works great!

~Chuck~
Retired USAF, Retired School Bus Driver, and now a Mobile Sawyer
1995 Wood-Mizer LT40HDG2425 Kohler - Shingle & LapSider
Cooks Cat Claw Sharpener, 4-foot Logrite cant hook and others.
Basic mechanical skills are all that's required to maintain the Wood-Mizer.
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Offline Norm

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Re: woodmizer blade tensioner
« Reply #13 on: April 17, 2011, 05:22:46 pm »
Thanks Chuck appreciate the help.  :)
WM LT30HDD-E25

Offline wwsjr

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Re: woodmizer blade tensioner
« Reply #14 on: April 17, 2011, 06:02:02 pm »
I use a large plastic syringe without the needle and a small piece of tubing on the end. Had some on hand that I use on the llamas and horses. Worked great for me.
Retired US Army, Full Time Sawyer since 2001. 2013 LT40HD Super with 25HP 3 Phase, Command Control with Accuset2. ED26 WM Edger, Ford 3930 w/FEL, Prentice Log Loader. Stihl 311, 170 & Logrite Canthooks. WM Million BF Club Member.

Offline Slingshot

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Re: woodmizer blade tensioner
« Reply #15 on: April 17, 2011, 09:58:17 pm »

   Norm, check Patty's sewing room (if she has one). Sewing machine oil also comes in those
 little bottles with the pull out flex spout.



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Offline Magicman

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Re: woodmizer blade tensioner
« Reply #16 on: April 17, 2011, 10:22:30 pm »
Yup, We have a Kenmore bottle that is well over 40 years old that came with Pat's first sewing machine.
 


That little spout telescopes out of the bottle 8" and all of the way back in for storage.
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic/Lombardini/Kohler

Never allow your "need" to make money to exceed your "desire" to provide quality service.....The Magicman

Offline Norm

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Re: woodmizer blade tensioner
« Reply #17 on: April 18, 2011, 07:19:26 am »
Hmmm Patty does quite a bit of sewing but I'm not allowed to play with her toys. Something about go break your own stuff.  :D

Thanks again for all of the help guys.
WM LT30HDD-E25

Offline submarinesailor

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Re: woodmizer blade tensioner
« Reply #18 on: April 18, 2011, 08:11:53 am »
I'm not allowed to play with her toys. Something about go break your own stuff.

Now, let me think....where have I heard that before.  Ok, yea....from the wife. :D ;D :D ;D

Bruce

Offline Norm

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Re: woodmizer blade tensioner
« Reply #19 on: December 08, 2011, 11:02:40 am »
Here are the rebuild instructions and the refill instructions. Hope this helps.

I tried to download this pdf but it does not show up. Anyone have a clue why?
WM LT30HDD-E25