KeithInSpace
Veteran Member
Nice pictures, Mr. Chuck in New Hampshire.
I just got my Woods BH6000 on Monday and my Wallenstein Thumb today. Unfortunately, this thumb does not bolt onto my BH unit as perfectly as it does on the Kubota BH.
Basically, the bucket control cylinder of the Woods is (apparently) "closer" to the dipperstick when in a fully curled position and the dipperstick itself isn't quite as thick. Therefore, the binding bolts on top, as provided, are in conflict with the bucket control cylinder.
I think I've decided to keep the thumb. I'm going to need to make some new holes for the top run of bolts and use smaller diameter bolts for clearance. Using Class 8 bolts and 4 instead of 2 bolts, I think I can mitigate any possible loss of strength. The bolts I'm talking about "bind" the thumb to the dipperstick and are put in shear by the moment about the thumb, but they have good leverage against said moment. And the lower-most bolt (the one closest to the bucket...the one most suceptible to shear by the thumb moment wanting to rotate up toward the boom) I can keep as the stock 1/2".
The bolts I'm talking about are the two best seen on top of the dipperstick near the bucket in Chuck's first picture.
The Woods BH6000 is a really nice unit. And the Wallenstein Thumb is a real looker. Since I'm already starting to scratch up my dipperstick with dirty, gritty tree stump guts, I can't wait to marry the two units together. Soon.
I just got my Woods BH6000 on Monday and my Wallenstein Thumb today. Unfortunately, this thumb does not bolt onto my BH unit as perfectly as it does on the Kubota BH.
Basically, the bucket control cylinder of the Woods is (apparently) "closer" to the dipperstick when in a fully curled position and the dipperstick itself isn't quite as thick. Therefore, the binding bolts on top, as provided, are in conflict with the bucket control cylinder.
I think I've decided to keep the thumb. I'm going to need to make some new holes for the top run of bolts and use smaller diameter bolts for clearance. Using Class 8 bolts and 4 instead of 2 bolts, I think I can mitigate any possible loss of strength. The bolts I'm talking about "bind" the thumb to the dipperstick and are put in shear by the moment about the thumb, but they have good leverage against said moment. And the lower-most bolt (the one closest to the bucket...the one most suceptible to shear by the thumb moment wanting to rotate up toward the boom) I can keep as the stock 1/2".
The bolts I'm talking about are the two best seen on top of the dipperstick near the bucket in Chuck's first picture.
The Woods BH6000 is a really nice unit. And the Wallenstein Thumb is a real looker. Since I'm already starting to scratch up my dipperstick with dirty, gritty tree stump guts, I can't wait to marry the two units together. Soon.
Last edited:
