The Forestry Forum is sponsored in part by:




TimberKing Sawmills




Toll Free 1-800-582-0470

LogRite Tools



Forest Products Industry Insurance


Norwood Industries Inc.


Sawmill & Woodlot Magazine



Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades


Turbosawmill

Sawmill Exchange

BRUTE FORCE Authorized Dealer

Woodshax Outdoor Vending Solutions

FARMA

Forestry Forum Tool Box

Author Topic: LT 40 woodmizer drive belt  (Read 451 times)

0 Members and 1 Guest are viewing this topic.

Offline armechanic

  • member
  • *
  • Posts: 40
  • Age: 70
  • Location: Compton, Arkansas
  • Gender: Male
  • I'm new!
LT 40 woodmizer drive belt
« on: October 04, 2017, 10:24:51 am »
I ordered a new drive belt for my 1988 LT 40, I am about to run out of adjustment and can't get it loose enough to break over.  The belt is the new double belt from Woodmizer  part # P09555-2. I am wondering if it will stretch, It also looks like it may rub on the top. I have the top nut about half on the shaft.  Thanks for ant ideas.
1989 Lt 40, D6C CAT, Home made wood processer in progress.

Online Chuck White

  • Senior Member x2
  • *****
  • Posts: 10367
  • Age: 68
  • Location: Russell, NY (Way Upstate)
  • Gender: Male
  • Sawing Mobile since 2005
Re: LT 40 woodmizer drive belt
« Reply #1 on: October 12, 2017, 09:53:24 am »
Wood-Mizer has a new turnbuckle available which should provide more adjustment for you!
Over time, the belt will stretch "some", and may need adjustment at 50 hour intervals!
When adjusting, adjust to 7/16" deflection with 14 pounds of pressure!
Adjust the rod/bar the is on the back of the engine and under the belt so that it is 1/8" below the drive belt, with the belt tensioned!

This info was provided to me by Wood-Mizer, Indy!
~Chuck~
Retired USAF (1989), Retired School Bus Driver (2012), and now a Mobile Sawyer
1995 Wood-Mizer LT40HDG2425 Kohler - Shingle & LapSider
Cooks Cat Claw Sharpener, 4-foot Logrite cant hook.
Basic mechanical skills are all that's required to maintain the Wood-Mizer.
I LOVE MY SAWMILL

Offline armechanic

  • member
  • *
  • Posts: 40
  • Age: 70
  • Location: Compton, Arkansas
  • Gender: Male
  • I'm new!
Re: LT 40 woodmizer drive belt
« Reply #2 on: October 20, 2017, 09:58:12 am »
Update ,  Not good I finally got enough adjustment so I could work the clutch ?  Now when I declutch it squeals and smokes. I am cutting semi dry hardwood (cherry & oak) using 4 degree doublehard WM blades and they dip & dive on every knot, blade tension is about 2200-2300 lbs.  I  will either go back to using two separate belts or make a longer adjustment bolt.  I think the reason for the dipping on knots maybe I changed the rpm's (lower) when I adjusted the drive belt. So I will readjust the linkage to the carb. 
1989 Lt 40, D6C CAT, Home made wood processer in progress.

Online Chuck White

  • Senior Member x2
  • *****
  • Posts: 10367
  • Age: 68
  • Location: Russell, NY (Way Upstate)
  • Gender: Male
  • Sawing Mobile since 2005
Re: LT 40 woodmizer drive belt
« Reply #3 on: October 20, 2017, 12:42:28 pm »
Sounds like a call to Wood-Mizer Technical Service is in order!

They should be able to handle your situation over the phone, in a few minutes!
~Chuck~
Retired USAF (1989), Retired School Bus Driver (2012), and now a Mobile Sawyer
1995 Wood-Mizer LT40HDG2425 Kohler - Shingle & LapSider
Cooks Cat Claw Sharpener, 4-foot Logrite cant hook.
Basic mechanical skills are all that's required to maintain the Wood-Mizer.
I LOVE MY SAWMILL

Offline armechanic

  • member
  • *
  • Posts: 40
  • Age: 70
  • Location: Compton, Arkansas
  • Gender: Male
  • I'm new!
Re: LT 40 woodmizer drive belt
« Reply #4 on: October 21, 2017, 11:16:23 am »
I think it may be time to talk to WM too.  I installed a larger pulley on the engine along with the tighter belts on the blade wheels in an upgrade a few years ago, I am wondering if that may be the problem.  The belt just seems to short.  Anyway I will post results when a "fix" is found.
1989 Lt 40, D6C CAT, Home made wood processer in progress.

Offline MartyParsons

  • Senior Member x2
  • *****
  • Posts: 1698
  • Age: 53
  • Location: Shade Gap, Pennsylvania
  • Gender: Male
  • Wood-Mizer Service and sales PA, VA, MD, WV others
Re: LT 40 woodmizer drive belt
« Reply #5 on: November 03, 2017, 07:54:05 am »
Hello,
   Not sure what engine is on your mill. The part # you listed is a 2 BX72 there is also a 2 BX 74 used on the Onan engine 24 hp.
You want to make sure you have the correct belt first and it is set to the correct tension.

You also need to adjust the throttle cable and the brake strap or band to get the belt to be loose enough to prevent squealing at idle.

Hope this helps.
Marty
A pessimist sees difficulty in every opportunity; an optimist sees opportunity in every difficulty. -Winston Churchill

Offline armechanic

  • member
  • *
  • Posts: 40
  • Age: 70
  • Location: Compton, Arkansas
  • Gender: Male
  • I'm new!
Re: LT 40 woodmizer drive belt
« Reply #6 on: November 03, 2017, 11:37:00 am »
It has a T260G Onan and on page 4-10  item 30 in the parts manual it gives the part # P09555-2.  I adjusted the brake and throttle. but could not get enough adjustment on the screw to let it cam over and lock down.  The 74 inch belt might work, but hate to be out another 50 bucks on a maybe.
1989 Lt 40, D6C CAT, Home made wood processer in progress.

Offline Magicman

  • Senior Member x2
  • *****
  • Posts: 33650
  • Age: 74
  • Location: Brookhaven, MS
  • Gender: Male
  • A "Traveling Man"
Re: LT 40 woodmizer drive belt
« Reply #7 on: November 03, 2017, 12:21:02 pm »
I installed a larger pulley on the engine
Wouldn't this require a longer drive belt.  When you ordered a replacement belt, if you did not inform them about your larger pulley upgrade, then I would think that they would send you the original sized belt.   smiley_headscratch
Knothole Sawmill, LLC     '98 Wood-Mizer LT40SuperHydraulic   WM Million BF Club Member   WM Pro Sawyer Network

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

Offline MartyParsons

  • Senior Member x2
  • *****
  • Posts: 1698
  • Age: 53
  • Location: Shade Gap, Pennsylvania
  • Gender: Male
  • Wood-Mizer Service and sales PA, VA, MD, WV others
Re: LT 40 woodmizer drive belt
« Reply #8 on: November 03, 2017, 09:47:26 pm »
Hello,
    I re read and did notice ( thanks Lynn) that you changed the drive pulley. That would change the blade speed FPM and drive belt length. Is there a reason the pulley was changed?
Marty
A pessimist sees difficulty in every opportunity; an optimist sees opportunity in every difficulty. -Winston Churchill

Offline DR_Buck

  • Senior Member x2
  • *****
  • Posts: 2575
  • Age: 65
  • Location: Northern VA
  • Gender: Male
  • Nuff said.....
    • Got Logs?
Re: LT 40 woodmizer drive belt
« Reply #9 on: November 04, 2017, 07:48:39 am »
I have 2 new Wood-Mizer drive belts in the for sale board.....



http://www.forestryforum.com/board/index.php/topic,97142.0.html
Hidden Acres Farm
I got a shotgun, a shovel backhoe and 57 acres!

Wood-Mizer LT40HDG25

Offline armechanic

  • member
  • *
  • Posts: 40
  • Age: 70
  • Location: Compton, Arkansas
  • Gender: Male
  • I'm new!
Re: LT 40 woodmizer drive belt
« Reply #10 on: November 04, 2017, 06:57:39 pm »
I changed the pulley because it was part of the upgrade.  I believe WM folks suggested it.  I looked at the belts posted by DR_Buck  The last two numbers are 71 which indicates they are 71 inch, The one I have is 72  so they would be too short.
1989 Lt 40, D6C CAT, Home made wood processer in progress.