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LT40HDG25 up-down gearbox failure

Started by Dan_Shade, October 18, 2007, 07:34:15 PM

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Dan_Shade

in continuance from here:

https://forestryforum.com/board2/index.php?topic=708.0

When did WM start using the same gearbox for everything?
Woodmizer LT40HDG25 / Stihl 066 alaskan
lots of dull bands and chains

There's a fine line between turning firewood into beautiful things and beautiful things into firewood.

MartyParsons

According to the revision history. It looks like WM started changing things 6/96. There was also a Diamond chain up grade around this time. Any mill or customer wanting to install a debarker assembly should check the up down chain to see if it is a Diamond manufactured chain.
Revision J 2.01 is also when there was a change. If you have a question about you specific model Wood-Mizer mill manufactured before this revision please give us a call. There are many veriables to when and which mill was manufactured with what gear box. Looks like if you have a mill with the revision J 2.01 + you are good to go.
Marty
"A pessimist sees difficulty in every opportunity; an optimist sees opportunity in every difficulty." -Winston Churchill

jackpine

Dan & Marty

My mill is a 2000 model and has the smaller gearbox with the one-piece output shaft so the change to the larger two-piece shaft must have taken place after that.

Bill

Dan_Shade

Woodmizer LT40HDG25 / Stihl 066 alaskan
lots of dull bands and chains

There's a fine line between turning firewood into beautiful things and beautiful things into firewood.

Dan_Shade

my mill is an '04 and it's a rev J8.01
Woodmizer LT40HDG25 / Stihl 066 alaskan
lots of dull bands and chains

There's a fine line between turning firewood into beautiful things and beautiful things into firewood.

logwalker

My mill is a 1994 and has the grey gearbox like jackpines. I was hoping that because the gearbox was not orange that it has been replaced. Am I correct in that assumption. Thanks for all the great info Sparks. Joe
Let's all be careful out there tomorrow. Lt40hd, 22' Kenworth Flatbed rollback dump, MM45B Mitsubishi trackhoe, Clark5000lb Forklift, Kubota L2850 tractor

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