Anyone have a MechMaxx 3-pt stump grinder?

[Runner]

What is this adapter you are talking about and how does it install on my torque wrench?

In the instructions for my Woodland Mills unit (same as the MechMaxx) they call the "wrench" a "torque adapter".

 

[JJT]

Thanks for this thread. I've got some 30 stumps and my brother in law just down the road has 50. We had considered renting a walk behind for a week, but this might be a better option, and we would definitely be a lot less rushed...

I have a Kubota L4701DT with a gear shift transmission. It sounds like in Turtle 1, this has worked for some of you? That's my only concern. He has a MX7080 also with a gear and shuttle shift.

I don't think you'll be happy using this stump grinder with a geared tractor. You'll be riding the clutch alot. I have HST. I ease into the stump, stop and let it grind for a few seconds until no chips are being thrown, then pull forward an inch or two and stop, let it grind, and repeat........

 

[Sawyer Rob]

I don't think you'll be happy using this stump grinder with a geared tractor. You'll be riding the clutch alot. I have HST. I ease into the stump, stop and let it grind for a few seconds until no chips are being thrown, then pull forward an inch or two and stop, let it grind, and repeat........

My geared tractor has "creep" gears, I don't stop or do any clutch slipping while grinding at all.

I chose the right gear to begin with that gives the slow speed I need and drive right through with the grinder grinding. It works just great and gets the job done just fine, no whiner tranny needed.

I do think a gear drive tractor should have creep gears for grinding stumps though...

SR

 

[eolesen]

Checking this morning.It looks like I can do 4 inches a second in the lowest gear. That might be a little too fast for this tool.

 

[shooterdon]

Checking this morning.It looks like I can do 4 inches a second in the lowest gear. That might be a little too fast for this tool.

IMO, that is too fast a speed

 

[phantom309]

Checking this morning.It looks like I can do 4 inches a second in the lowest gear. That might be a little too fast for this tool.

This stump grinder might be a good option for gear drive tractors that don't have a sufficiently low creep gear.

 

[shooterdon]

This stump grinder might be a good option for gear drive tractors that don't have a sufficiently low creep gear.

I wish I had bought that one but could not justify paying double the price.

It may not work well with a lot of the smaller tractors as it needs 35HP. I have 32 HP at the PTO and think it would be fine.

 

[eolesen]

It also requires a rear remote, which my particular tractor doesn't offer as standard, so add another $1000 to the cost.

It would be cheaper to replace the clutch plate several times over...

 

[Sawyer Rob]

It would be cheaper to replace the clutch plate several times over...

Apparently, you have never priced replacing the clutch on your tractor.

SR

 

[IXLR8]

Finally got my MM grinder assembled and adjusted. I couldn't figure out how to 'attach' the 24mm adapter to my torque wrench, so I just put a 2' long pipe on the adapter and tightened the nut to my best 'guesstimate' torque value. I set the slip clutch to the 30hp setting. If I engage the PTO at 1/2 PTO rpm, then it slips according to my marks. But if I engage at idle, it does not slip. Okay, time to grind some stumps. I had a 3' dia about 10" high pine stump to practice on.
This thing is a beast and I am not running it at full PTO speed. I need to practice some more to get proficient. After spending 45 min grinding on this stump and accidentally taking some cuts deeper than I should have. The clutch was not warm at all so I am going to assume it was not slipping.
I find the PTO shaft to be located exactly blocking where I want to see. I have a backup camera that I am going to see if I can mount it where it will give me a better view of what is going on.