Scotty370
Platinum Member
- Joined
- Dec 18, 2008
- Messages
- 898
- Location
- Buffalo, New York
- Tractor
- 318 John Deere, 4200 John Deere, 1947 John Deere "M"
Stump Grinder Questions!
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I want to build a 3 Point hitch Stump Grinder Attachment patterned after several after market units out there for my John Deere 4200. (26hp 3cyl Diesel w/ Backhoe/Bucket). Two immediate questions: What is the cutter wheel rotation suppose to be? I say lower teeth should be moving toward the tractor. Thus if your standing on the right side of the machine it would turn counter clockwise! The PTO turns counterclockwise (Doesn't it?) thus a right angled gearbox mounted on the left hand side would cause it to turn as described! This would cause the tractor to be pulled toward the stump when cutting. I think that's safer than having it try to launch the tractor forward. Also, Wouldn't it relieve 'side pressure' bearing wear if I were to build it with a shaft mounted cutter wheel supported on both ends with pillow blocks? I would leave a splined end facing the gearbox that I could hook up with a Lovejoy type connector. (IE two internally splined metal hubs with a rubber insert. Also I need parts sources for the wheel if I don't 'tooth up' a piece of 1/2" plate. I'm thinking a 24" wheel! Any help appreciated! ~Scotty
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I want to build a 3 Point hitch Stump Grinder Attachment patterned after several after market units out there for my John Deere 4200. (26hp 3cyl Diesel w/ Backhoe/Bucket). Two immediate questions: What is the cutter wheel rotation suppose to be? I say lower teeth should be moving toward the tractor. Thus if your standing on the right side of the machine it would turn counter clockwise! The PTO turns counterclockwise (Doesn't it?) thus a right angled gearbox mounted on the left hand side would cause it to turn as described! This would cause the tractor to be pulled toward the stump when cutting. I think that's safer than having it try to launch the tractor forward. Also, Wouldn't it relieve 'side pressure' bearing wear if I were to build it with a shaft mounted cutter wheel supported on both ends with pillow blocks? I would leave a splined end facing the gearbox that I could hook up with a Lovejoy type connector. (IE two internally splined metal hubs with a rubber insert. Also I need parts sources for the wheel if I don't 'tooth up' a piece of 1/2" plate. I'm thinking a 24" wheel! Any help appreciated! ~Scotty