pto gearbox speed increaser

hosejockey2002 · Jul 7, 2002

Most of the grey market tractors have multi-speed PTOs. My Yanmar YM1401D has 3 speeds. It's not as fancy or easy to use as the new orange, green or blue tractors but when it comes right down to it it accomplishes the same things.

bigpete · Jul 7, 2002

I do not profess any expertise in this area, but have bookmarked a page with a pretty good explanation of the torque/horsepower relationship. The author explains the basics in terms of autos and drag racing, but the principles are the same
<A target="_blank" HREF=http://www.datsuns.com/torquehp.htm>Torque and HP</A>/w3tcompact/icons/clever.gif

I wish Muhammed would come up with a smiley face like that one but a perplexed face with the mortar board and tassel tilted and the guy scratching his temple.

rbargeron · Jul 7, 2002

Hi Neal - I was able to add the necessary parts to convert my single speed pto to a two-speed. Check out <A target="_blank" HREF=http://www.tractorbynet.com/cgi-bin/compact/showflat.pl?Cat=&Board=owning&Number=102451&page=28&view=collapsed&sb=5&o=&fpart=all&vc=1> THIS THREAD </A> for details on how it was done. Kubota sells tractors in countries where higher rpm implements are common. If you track down the right parts list you may be able to get what you want right from Kubota.

Dick

ns_in_tex · Jul 7, 2002

Thanks for the info. I will try to check into it.
I was wondering if your tractor came with a empty slot for the 2 speed pto control lever? If so, this might be an indication for me to look for on my tractor & possible tell if this might be an option.
Also approx what did the parts cost for your conversion?

rbargeron · Jul 8, 2002

My tractor had a engage-disengage pto selector lever already. If you look at some of the posts halfway down the thread there are some pictures of the pto gearbox and the parts I got for it. The parts cost about $500.

For your tractor, the place to look is a parts list - possibly the Australia or New Zealand version of the list.

rbargeron · Jul 9, 2002

Neal - I should have mentioned that I had looked into speed increasers - found an old Milwaukee Gear listing for one - very expensive - and big - rated for 100 hp I think. One reason they're expensive is they have to have two sets of gears so they still turn the right direction. I never found a smaller one (40-50hp) but I did find where other countrys' versions of my tractor had a 2-speed pto.

Hope you find something - let us know if you do.

Dick B.

Miklos · Jul 11, 2002

My Kioti LK3504 has a two speed pto, 540 and 1000 rpm. I do most of my mowing in the 1000 rpm position running the engine at 1800 rpm. With 35hp, there is no bogging when running a 5' Bush Hog mower. Fuel useage is drastically reduced over using 540 position and 2700 engine rpm.