What Is The 960 PTO Used For.

[Baby Grand]

My Patu wood chipper runs great at 540, but is rated to run thru the range of 540-1000.
Wish I had the 1000 option on my L series to give it a try.
On a wood chipper the flywheel stores a lot of energy, which helps keep the chipper from bogging down the tractor when it hits a tough section of wood.
Once the engine starts to bog, you are in trouble, as the engine torque starts to fade, further slowing the flywheel and knives.
Since kinetic energy is proportional to the square of rotation speed, doubling the speed yields 4 times the stored energy in the flywheel.
Might take the edge off of chipping the occasional piece of gnarly hickory.

 

[SPYDERLK]

My Patu wood chipper runs great at 540, but is rated to run thru the range of 540-1000.
Wish I had the 1000 option on my L series to give it a try.
On a wood chipper the flywheel stores a lot of energy, which helps keep the chipper from bogging down the tractor when it hits a tough section of wood.
Once the engine starts to bog, you are in trouble, as the engine torque starts to fade, further slowing the flywheel and knives.
Since kinetic energy is proportional to the square of rotation speed, doubling the speed yields 4 times the stored energy in the flywheel.
Might take the edge off of chipping the occasional piece of gnarly hickory.

I overspeed my Jinma chipper to about 700. This is mainly to bring the 7520 to its torque peak. This lets the tractor run at calm rpm and noise, but still enuf power to chip 99% of what will fit in the chute [a long 6" log will stop the tractor]. The chipper is rated at 540 and the 300# wheel spins a little over twice as fast. Im afraid to spin it at full 1000 PTO.
larry

 

[nodlenor]

My Iseki has a 3 speed pto. Can anyone tell me the speed of each position. I use the slow speed for tilling ground that hasn't been worked and the middle speed for ground that has and I very seldom use the fast speed. While tilling I run the tractor in the lowest gear it has and have the engine wide open.

 

[jix]

You sounde like you haqve it figured out about right, but I do not know what Horsepower tractor you have, but if it is 20 hp or better, you can do as you have said OK

 

[Alford78]

This is rather simple and many are making it over complicated. John Deere calls this Economy PTO and it's an extra charge on their 4 Family tractors. It just allows the tractor to run at a lower RPM while keeping the attachment turning at 540 or higher. I wish my JD 3033r had the option for either my mid or rear PTO but no such luck. It would really be beneficial for a larger finish mower I would imagine and running at 2600 rpms for cutting grass guzzles the fuel like there's no tomorrow.