Need help converting a chipper to PTO drive

[Window Geek]

I have an old Salsco Stallion chipper - shredder that has an 8 HP B+S on it. It will chip up to 4" but I chip 3" and below, usually maple and red oak. The problem is the engine is getting hard to start, the centrifugal clutch is getting tired, and it bogs down with nearly every branch. These were made with 13 and 16 HP engines too and I'm thinking of converting it to run off my PTO. The shaft to the chipper is 1". Is there an adaptor for 1" shaft female to a regular 1 3/8" spline male? Anyone have ideas?
Yep the blades are pretty sharp, and the anvil is adjusted. If it were all white pine, I'd have no problems. My PTO is 18 HP.

Thanks.

 

[Iplayfarmer]

I don't know much about these chippers. Are the engine driven ones built differently than the PTO versions? I know most B&S engines typically run faster than 540 rpm.

The only concerns I see in my ignorance are some type of fusable link (usually included in the form of a slip clutch or shear pin in the PTO shaft.) and reconciling the different speeds between the B&S engine and the PTO.

I'm assuming that you've already considered that you'll have to change the frame and chassis somewhat to accomodate being run by the tractor.

 

[Window Geek]

Yup. I can modify the setup to get the shaft in line, or if needed, build a jackshaft to run a pulley and belt to bring the spin up. I have a PTO shaft with a slip clutch. I could direct drive it since my PTO can run at 1000. I'll need an adapter to do that.

I'm just looking for suggestions from this fine tractor community.

 

[Sherweld]

This might get you started G&G Manufacturing Company then look under pump adapters.

They show male PTO spline > 1" keyed bore, but I'm not sure what dealer you need to contact to purchase.

Good luck ... keep us posted
Sherweld

 

[Window Geek]

Sir Sherweld,
That's exactly what the doctor ordered.

This might get you started G&G Manufacturing Company then look under pump adapters.

They show male PTO spline > 1" keyed bore, but I'm not sure what dealer you need to contact to purchase.

Good luck ... keep us posted
Sherweld

 

[woodlandfarms]

So in following this, does anyone have a source for a spyder connector that would be one side PTO and the other side Keyway shaft?

Looking the net and having no love no joy (get it? ;-)

 

[Taylortractornut]

You ll need to gear it up a bit first. That will take care of the slip clutch with the use of a pulley and belt that youd get the input from the pto. I did that when I made my old roto hoe shredder into a pto drive. at 540 it wont perform very well at all.

 

[RWolf]

I've seen the PTO spline to 1" keyway at both my local TSC and on Surplus Center.

 

[Groo]

not sure 1000 rpm would be enough. I think a B&S is about twice or a little more than that.

 

[F.L. Jennings]

These small engines run at 3000 - 3600 rpm. The small chipper/sherdder I have is not direct coupled but has a driver sheave on the engine and a driven sheave on the chipper shaft w/v-belt of course. By your description I assume that the shafts are in line with a clutch separating them. If you need to speed up from your slower tractor pto rpm - and my guess is that you do - then to approach say 3000 rpm from your 540 rpm PTO (assumed) then you will need an approx. 5.6:1 speed up. If you had say a 4.5" driven sheave on the chipper then the approx sheave size on the engine shaft would be about 4.5 X 5.6, or 25" dia.

You might be able to live with a slower chipper speed ( I don't know if you have reductions of some sort in the existing chipper drive train) If you tried 2000 rpm the the sheave sizes would be (2000/540 = 3.7) assuming 4.5 driven, an approx. driver sheave would be 16.7. Lots of ways to go. The deal is with this set up you are trying to keep sizes as small and compact as is practical.