The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns

Forestry Forum
Sponsored by:

TimberKing Sawmills

Toll Free 1-800-582-0470

LogRite Tools

Norwood Industries Inc.

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

EZ Boardwalk Sawmills. More Saw For Less Money! sponsored by Northeast STIHL

Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades


Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

Baker Products


iDRY Wood Lumber Vacuum Drying for everyon

Nyle Kiln Dry Systems

Chainsawr, The Worlds Largest Inventory of Chainsaw Parts

Smith Sawmill Service

Author Topic: Edger belts twisting and will not stay on  (Read 339 times)

0 Members and 1 Guest are viewing this topic.

Offline Bhale

  • Member*
  • *
  • Posts: 1
  • I'm new!
    • Share Post
Edger belts twisting and will not stay on
« on: August 17, 2020, 10:18:23 PM »
I have a 1968 model 127 mobile demension saw. I changed the edger belts and the belts start twisting and come off. Does anyone have any ideas?

Offline luap

  • Senior Member
  • ****
  • Posts: 451
  • Location: western Upper Penninsula
  • Gender: Male
  • Not as good as I once was
    • Share Post
Re: Edger belts twisting and will not stay on
« Reply #1 on: August 18, 2020, 09:39:30 AM »
Welcome to the forum. I am not familiar with your saw but have had experience with lots of belt driven equipment. Number one is alignment and condition of pulleys. No 2 is belt tension. There have been other threads on this topic so maybe the search function could be of help. I assume these are v belts but same principle applies to flat belts. With misaligned pulleys, when the belt is tensioned one edge becomes longer and tighter and the belt will move in the pulley to that side even to the point of flipping over. This can damage the belt internally and will only stay on if left loose. So the center of the v groove should be aligned and the pulleys need to be parrallel and coplanar. A string stretched across the face of the pulleys should touch each rim or any straight edge across the face making allowance for the thickness  or width of the pulleys. Other problems such as the v worn into a U, loose set screws, sheared keys, bad bearings, etc. should be looked for. A google search will give lots of info on proper belt tension.

Offline moodnacreek

  • Senior Member x2
  • *****
  • Posts: 4391
  • Location: Orange County NY
  • Gender: Male
  • Sawin by the notches
    • Share Post
Re: Edger belts twisting and will not stay on
« Reply #2 on: August 18, 2020, 12:39:51 PM »
I agree with Laup but will say that new vee belts will run for a short time on most any set up. 

Offline hacknchop

  • Senior Member
  • ****
  • Posts: 634
  • Age: 61
  • Location: Bruce Mines Ontario Canada
  • Gender: Male
  • I'm new!
    • Share Post
Re: Edger belts twisting and will not stay on
« Reply #3 on: August 18, 2020, 04:33:16 PM »
Does it have the 5 shive pulley or the 6 shive pulley.  Belt tension and alingment of the roller guides are critical the vertical guide that is beside the pulley on the edger shaft needs to touch the back of all the belts ,set the lead on your saw before you adjust the guide. The horizontal guide must also touch all the belts ,use the bottom adjuster to set the lead which should be about a 32th" down at the front compared to the back of the 12'' edger blade,give or take a 64th". Hope this helps.
Often wrong never indoubt

Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

MD edger belts

Started by cwk266 on Sawmills and Milling

5 Replies
Last post July 13, 2019, 02:31:06 PM
by cwk266
A question about Mobile Dimension edger belts

Started by Wes Lyon on Sawmills and Milling

1 Replies
Last post April 11, 2015, 03:07:35 PM
by hacknchop
Twisting log

Started by rjwoelk on Timber Framing/Log construction

2 Replies
Last post June 20, 2017, 12:24:38 PM
by rjwoelk
F90 twisting lines

Started by Firewood1 on Forestry and Logging

3 Replies
Last post July 10, 2019, 09:23:04 PM
by Oliver05262

Powered by EzPortal