The Forestry Forum

General Forestry => Sawmills and Milling => Topic started by: Dan_Shade on October 18, 2007, 07:34:15 PM

Title: LT40HDG25 up-down gearbox failure
Post by: Dan_Shade on October 18, 2007, 07:34:15 PM
in continuance from here:

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

When did WM start using the same gearbox for everything?
Title: Re: LT40HDG25 up-down gearbox failure
Post by: MartyParsons on October 18, 2007, 11:11:45 PM
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
Title: Re: LT40HDG25 up-down gearbox failure
Post by: jackpine on October 19, 2007, 07:32:58 AM
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
Title: Re: LT40HDG25 up-down gearbox failure
Post by: Dan_Shade on October 19, 2007, 07:49:40 AM
here's what mine has:

(https://forestryforum.com/gallery/albums/userpics/12217/sawmill0007.JPG)
Title: Re: LT40HDG25 up-down gearbox failure
Post by: Dan_Shade on October 19, 2007, 07:50:13 AM
my mill is an '04 and it's a rev J8.01
Title: Re: LT40HDG25 up-down gearbox failure
Post by: logwalker on October 19, 2007, 12:04:58 PM
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