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Author Topic: Woodmizer alternator belt tension question  (Read 1768 times)

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Online Jim_Rogers

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Woodmizer alternator belt tension question
« on: October 23, 2009, 02:18:52 am »
What is the best way to set the correct belt tension?

I'm always unsure when the belt is too loose or too tight. What or how to you do it to make sure it is done correctly?

Thanks in advance for any advice.

(1994 LT30HDG24) with 61 amp Delco alternator.
Whatever you do, have fun doing it!
Woodmizer 1994 LT30HDG24 with 6' Bed Extension

Offline Chuck White

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Re: Woodmizer alternator belt tension question
« Reply #1 on: October 23, 2009, 05:27:41 am »
Jim;  The book for my 1995 model says pivot the alternator away from the motor until the belt has 7/16" deflection with a 5 pound deflection force, then tighten the adjustment bolt.
~Chuck~
Retired USAF, Retired Bus Driver, and now a Mobile Sawyer
1995 Wood-Mizer LT40HDG24 (Onan) - Shingle & LapSider
Cooks Cat Claw Sharpener & Single Tooth Setter
Basic mechanical skills are all that's required to maintain the Wood-Mizer.
4 ft Logrite cant hook, and others.  I LOVE MY SAWMILL

Online Jim_Rogers

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Re: Woodmizer alternator belt tension question
« Reply #2 on: October 23, 2009, 08:53:48 am »
Thanks Chuck.
I'll have to try that with my new fancy belt tension gauge..... that I just got from WM....
Whatever you do, have fun doing it!
Woodmizer 1994 LT30HDG24 with 6' Bed Extension

Offline Brucer

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Re: Woodmizer alternator belt tension question
« Reply #3 on: October 26, 2009, 02:20:59 am »
I always use a belt tension guage -- got one in '82 when I bought my first tractor.

I use a water-proof pen to mark a reference line on the housing behind the belt. Makes it easy to check the deflection without fiddling around with a straight edge.

It's a good idea to check all the belts when you first get your mill, whether it's new or used. My last mill shredded an alternator belt after 20 hours -- turns out they installed a cover wrong and the alternator wouldn't slack off enough. I guess whoever was assembling the mill just reefed away on the alternator until it clear the cover.
Bruce    LT40HDG28 bandsaw with two 6' extensions, ED22 twin blade edger.
"Complex problems have simple, easy to understand wrong answers."