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Cord wood saw on a Super MD a few questions

A

Andrew Z

Well-known Member
Im looking at hooking up a front mounted cordwood saw to my Super MD. Is this to large of a tractor to run a saw on? Does anyone know where i can locate a drive belt? Also at what RPM do i need the run the engine? Tractor has standard pulley size.
I will try and get a picture of the saw today when i get it mounted, not sure of brand either.

Thanks for the input!
Andrew
 
It's way more tractor than you need. I use my H some and run it maybe 1/3 throttle. I suppose you will have to make up a belt to get the right length.
 

Engine speed depends on pulley diameters and blade diameter to achieve a proper rim speed for the blade.

The bigger on the tractor versus the smaller on the saw will reduce engine speed.

My belt pulley is about 11" and I need about 3/4 throttle to get blade speed due to pulley size on the saw.
 
I have Cordwood (Buzz) saws on Farmal Regulars and F-12. The F-12 I run at idle, where as the Regular due to the constant run gov I have to use a bungie cord to hold back the overide as it is too fast. In any case, it uses less than a cahin saw and you get alot more done in an hour!
 
An M is more then you need, but you could use a 1206 if you want to. Just use common sense. Get your pully sizes right for correct blade rpm.
 
Andrew,

I'm sure there are some places out there with websites, but this is the guy everyone I know uses, just because of a connection through friends out that way. No idea how he is on pricing. But I know he'll make up any size belt you need.

He's Amish, so usually you need to leave a voice mail message and he'll get back to you:

Henry J. Hershberger
BOWMAN BELTS
4552 Township Rd #336
Millersburg OH 44654

330-893-2089
 
thank you to all for the replys, ill try and get a picture of this saw up and see what you guys think.

thanks!

Andrew
 
Figure blade speed of around 400-500 RPM. Your tractor is more than adequate sized.

Work the math between your tractor pulley, engine speed just above idle, and 500 rpm blade speed and you'll yield your arbor pulley size.

No need to rev a tractor engine up to get necessary blade speed. Horsepower is more than adequate, so adjust your arbor pulley size for the proper speed, and the tractor will quietly putter away.
 
We hooked a saw up behind a 200. I ran the tractor at about 3/4 full throttle. Since the saw was old but new to me, I had to spend some time on the blade with a file to get it sharp. It must not have been touched in 40 or 50 years. After the third sharpening and putting a little "set" in the teeth the old saw would cut very fast. My son and I cut about a cord of oak limbs in an hour which is much faster than the chain saw and less work also. On a big log (over 8") you could tell the engine loaded up a little. Your M probably would not even know it was there. Do wear ear and eye protection since these old saws are very loud and saw dust flys.
 
There is a place in Milton, WI along hwy 26 that does saw blade sharpening. Not sure how many places like that are around your area.
 
I have a Farmall B with a buzz saw mounted on the back of it.My belt went bad. I am going to get a new one from ( Hit & Miss Enterpries Orwell, Ohio (440)272-5335 ). They will lace it for a fee.
 
Don"t know if you need this, but here"s a link to the one that was on my M when I bought it. I just wanted to run it once to see what it was like. Conclusion: I like my husky chain saw!
Buzz saw
 
General consensus for RPM is between 1000 and 1400 on the saw shaft. Most old saws have a drive pulley that is in the 4 to 6" range, many belt pulleys run in the 1200 to 1300 RPM area. THus if it is overdriven by about 2:1 I would use 1/2 throttle or so. A shaft tach, or a strobe tach is a good item to have on hand, They should not be run at dramatic speeds. especially since the integrity of the old steel is questionable unless magnafluxed. Bearings are often plain journal type and need to be assessed before use. Either plastigauge, or micrometer measuring, or with shims to lock it then measure the shims. .002" to .005 will probably be OK. Lubrication is grease or drip oilers. Keep safe, and watch for crooked wood or knots that can twist the material and cause injury. Jim
 
good points made by all so far. FWIW, I run my 32" buzz saw with the F-20 as just a tad over idle. I sharpened and set the teeth, and also wire brushed the blade, and painted it with graphite paint.

The F-20 barely hits the govenor even sawing 6" oak or hickory. Not sure if I am running the blade fast enough, but it is fast enough for me. These old saws will surely cut cord wood to beat the band, but they also earned their nick name of "widow maker" as well.

Be safe, and enjoy. I know I have fun using mine.

Before:

3970.jpg


AFter:
3971.jpg
 
I ran one on a Cub with an IH right angle adaptor for a number of years. Only used it for wood less than 6" diameter although it could handle bigger. It was easier to buck the big stuff with a chainsaw where it lay rather than hump it over to the tractor.

When I bought it, I was told it was a "man-killer". Presumably, someone died while using it. The most important safety issue is to move the tractor when the wood pile gets large. It is important to reduce the tripping hazard around that spinning blade. Oh yeah, wear tight fitting clothes, too.
 
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