Too much HP for my mower and wood chipper. Now what?

[ruffdog]

Even though I have an electric PTO I still use my clutch to engage it, especially on heavy implements such as my rotary mower.

Is this possible on most electric engaged pto systems on tractors? I was under the assumption that on some tractors you only have the switch engagement. :confused3:

 

[k0ua]

Is this possible on most electric engaged pto systems on tractors? I was under the assumption that on some tractors you only have the switch engagement. :confused3:

On my tractor there is NO clutch period. So the electric solenoid engages a hydraulic valve to engage the PTO. It is best done at idle with no load on the PTO implement. I have never sheared a pin.

 

[DK35vince]

Is this possible on most electric engaged pto systems on tractors? I was under the assumption that on some tractors you only have the switch engagement. :confused3:

My tractor has an Independent PTO (either on or off with a switch) and gear drive .
The PTO is independent of the clutch. Clutch in or out makes no difference to the PTO, if the switch is on the PTO stays running

 

[ruffdog]

On my tractor there is NO clutch period. So the electric solenoid engages a hydraulic valve to engage the PTO. It is best done at idle with no load on the PTO implement. I have never sheared a pin.

My Toolcat only has the switch too and it too has a soft start.

 

[CobyRupert]

A slip clutch on a wood chipper won't cause it to kick debris back. It will work normally until you feed in something large too fast- then the clutch will slip and the rotor will slow or stop. If the clutch is adjusted correctly that is.

Unless there is something else wrong like the wrong shear pin, breaking shear pins means that you're mowing too much material, which means you're going too fast. With a smaller tractor you'd know when to slow down because the tractor engine would be struggling. With the stronger tractor you'll have to figure that out by looking at what you're cutting. If the tractor has a economy PTO gear where the engine is turning slower when the PTO is at 540, you could use that.

Exactly. The load (rate of material being cut) determines how much torque is demanded from the tractor. This needs to be less than the torque that will snap the shear pin.
The alternative to not having a tractor that can overpower the shear pin is the tractor stalls (or wants to) but the shear pin holds.
If the tractor is too small, compared to the upper range of the implement, a shear pin sized for the implement won’t protect the tractor’s driveline. That could get expensive.