rswyan
Super Member
- Joined
- May 12, 2004
- Messages
- 9,769
- Location
- Northeast Ohio
- Tractor
- Kubota B2910, Cub Cadet Pro Z 154S, Simplicity 18 CFC, Cub Cadet 782
I have an Allied/Buhler Farm King 60 rear 3PH snowblower and want to convert it to a front-mount blower for use on our Kubota B2910.
The biggest issue (for me personally) is how to power it. Looks to be 3 options:
1. Build a PTO reverser box, that mounts to the rear PTO, and run a shaft forward.
2. Mechanically power it off the B2910's mid-PTO. This would require a speed reverser/reducer to reverse the rotation of the mid-PTO and gear it down to 540 from 2500.
3. Hydraulically power it off the B2910's mid-PTO. This would require an appropriate hydraulic motor and pump, and a reservoir .... and I already have a pump and a reservoir :thumbsup:
The pump is an Eaton 25500 series gear pump which came with my Kubota BH4690B backhoe. Kubota claims that the pump is rated for 2500 psi (which doesn't agree with Eaton's literature) and has a displacement of 2.05 cu. in (which does agree with Eaton's literature)
Eaton (or at least their current literature) says this pump - which is actually a model 25503 - has a 2.05 cu. in. displacement, is rated for 3600 psi (continuous), has a rated speed of 2750 rpm, and has an output of 22 GPM @ 3000 psi @ 2750 rpm:
Eaton Gear Pumps
Unfortunately to reach that output requires an input of 47 HP according to Eaton - and our B2910 only has 22 at the PTO
I'd guess that since I've already been using the pump on the rear PTO for the backhoe, I could achieve some level of performance if it were paired with an appropriate hydraulic motor - and that's where I need some guidance.
Surplus Center has three "PTO" hydraulic motors (motors with a 6 spline 1 3/8" output shaft) listed on their website in the section for low speed/high torque motors .... although I don't know that I necessarily need to use a motor with a "PTO" spline shaft (the shaft I'm mating to on the snowblower is 1 1/4" keyed)
Can anyone offer their sage advice as to what hydraulic motor would be appropriate for this pump/speed/horsepower combination ?
BTW, the reservoir I have is a 10 gallon one I bought from Surplus Center for a logsplitter project which I have gotten around to completing .... I realize this could be possibly undersized for the potential flow I might have .... but I figured winter time/cold temps/limited use ... so heat dissipation might not be a problem ......
The biggest issue (for me personally) is how to power it. Looks to be 3 options:
1. Build a PTO reverser box, that mounts to the rear PTO, and run a shaft forward.
2. Mechanically power it off the B2910's mid-PTO. This would require a speed reverser/reducer to reverse the rotation of the mid-PTO and gear it down to 540 from 2500.
3. Hydraulically power it off the B2910's mid-PTO. This would require an appropriate hydraulic motor and pump, and a reservoir .... and I already have a pump and a reservoir :thumbsup:
The pump is an Eaton 25500 series gear pump which came with my Kubota BH4690B backhoe. Kubota claims that the pump is rated for 2500 psi (which doesn't agree with Eaton's literature) and has a displacement of 2.05 cu. in (which does agree with Eaton's literature)
Eaton (or at least their current literature) says this pump - which is actually a model 25503 - has a 2.05 cu. in. displacement, is rated for 3600 psi (continuous), has a rated speed of 2750 rpm, and has an output of 22 GPM @ 3000 psi @ 2750 rpm:
Eaton Gear Pumps
Unfortunately to reach that output requires an input of 47 HP according to Eaton - and our B2910 only has 22 at the PTO
I'd guess that since I've already been using the pump on the rear PTO for the backhoe, I could achieve some level of performance if it were paired with an appropriate hydraulic motor - and that's where I need some guidance.
Surplus Center has three "PTO" hydraulic motors (motors with a 6 spline 1 3/8" output shaft) listed on their website in the section for low speed/high torque motors .... although I don't know that I necessarily need to use a motor with a "PTO" spline shaft (the shaft I'm mating to on the snowblower is 1 1/4" keyed)
Can anyone offer their sage advice as to what hydraulic motor would be appropriate for this pump/speed/horsepower combination ?
BTW, the reservoir I have is a 10 gallon one I bought from Surplus Center for a logsplitter project which I have gotten around to completing .... I realize this could be possibly undersized for the potential flow I might have .... but I figured winter time/cold temps/limited use ... so heat dissipation might not be a problem ......