Stump Grinder Woodland Mills WG24?

[roadhunter]

Sounds like a top n tilt kit might be really useful for this implement to get extra clearance and give better control, especially in uneven terrain. I would also think that a hydrostatic drive would be ideal.

 

[dickfoster]

Sounds like a top n tilt kit might be really useful for this implement to get extra clearance and give better control, especially in uneven terrain. I would also think that a hydrostatic drive would be ideal.

Might be a good idea.

 

[JFoy]

JFoy - did you see page 9 in the updated owners manual: "STUMP GRINDER SET UP PROCEDURES" - "PTO SHAFT CLUTCH RUN-IN"? I don't know that it would affect stalling, but just in case.

I slipped the clutch before using it first time. Before I loosened the bolts, I measured them. When I tightened them, I went with the "snug then 1.5 turns" rule which actually brought them back to the same length. Still, it appears to be too much for my unit.

I did get the new manual as well.

 

[JFoy]

Thanks for the pics. It looks like it is well packed. What is your impressions as to build quality, serviceability and bang for the buck so far. Just that much closer to placing the order now.

Build quality: dang heavy! Welds look consistent. Serviceability: Book essentially shows two service points - replacing teeth and bushings - both look easy. Bang for the buck: Hmm.. My original intentions for using it have changed so it is not as important to me as before. Course, as soon as the neighbors figure out what it is, well, you know the rest.

 

[JFoy]

It's probably set to protect things on the grinder side so it slips instead of something going bang. Of course that would tend to protect your PTO too.

Well, always remember that the $300 computer motherboard will sacrifice itself for the 30cent fuse.

 

[dickfoster]

Well, always remember that the $300 computer motherboard will sacrifice itself for the 30cent fuse.

Only if the magic smoke gets out.

 

[Tin Knocker]

Mine came in as well. There is some serious steel in this thing. The sides of the shroud are 5/16 inch steel, the band around the shroud is 1/4 inch steel. Flywheel is 3/4 inch thick. Didnt spend much with it as it was delivered to my work. Got a bazillion stumps to to chew on this weekend ranging from 4 to 26 inches. I think there is going to be a learning curve on my part in its operation , eventually should come instinctive. One thing to consider is that when meeting resistance, HP mean very little and torque becomes most relevant. A 25 HP L2501 is putting out 47.5 ft lbs of torque at the PTO at 540 rpm. A BX2670 is 31 and BX25D is 29 ft lbs of torque at the PTO. All of these in the 25 hp range. Rated HP of the engine or PTO doesnt give a true value of the ability to do do work.

 

[Fallon]

One thing to consider is that when meeting resistance, HP mean very little and torque becomes most relevant. A 25 HP L2501 is putting out 47.5 ft lbs of torque at the PTO at 540 rpm. A BX2670 is 31 and BX25D is 29 ft lbs of torque at the PTO. All of these in the 25 hp range. Rated HP of the engine or PTO doesnt give a true value of the ability to do do work.

HP = (torque * rpm) / 5252. PTO HP is always rated at 540 RPM (1000, for some big machines), so there is literally no difference in torque for 2 different machines with the same PTO HP. Different torque curves if you drop below PTO speed, but no difference in torque.

PTO is an interesting thing when comparing HP as its about the only scenario where torque & HP is an apples to apples comparison because of the consistent PTO speed. Most everywhere else that argument holds up.

 

[check]

The folks at Woodland Mills said it does better with freshly cut stumps versus old hard stumps and that makes sense. What I did yesterday was some 20 year old, 4in stumps that I've been mowing around. For those, all I cared about was getting them below grade so I could mow over that area. What caused me to stall out was I didn't pull through far enough on the first pass but did pull further on the second pass. So, with the second pass, I encountered an area that was too tall and with 20 HP on the the PTO, it was too much. Visibility of depth when lowering the wheel can be an issue as the guards around the grinder wheel limit what you can see. I think having someone else act as a spotter might help. Also, it really helps to adjust the knob that controls the drop rate of the 3pt so it goes down very slowly. At 500lbs on the BX's 3pt, I had a couple times where it dropped too quickly until I remembered I could control the decent rate. Once I tightened up the drop rate knob, it was much easier to control. As to the height of the stump, I haven't measured it yet but I'm going to guess the stump needs to be 4in or less above grade. There is a 24" round stump at my neighbor's house I considered but I realized I couldn't raise the grinder high enough to back over it.

Just pile some dirt beside the stump, so your tractor sits higher.

 

[dickfoster]

Just pile some dirt beside the stump, so your tractor sits higher.

There's a thought. I guess there's always more than one way to skin a cat.