Fish
Member
- Location
- North yorkshire
As the m35 is available with hydro drive,
what do Bogball /KRM fit ?
what do Bogball /KRM fit ?
what speed hydraulic motor for fert spinner ?
- Thread starter andybk
- Start date
Not without looking, I was hoping @Case290 might have the required data.
- Location
- Worcestershire
- Location
- Worcestershire
See this thread on forum4farming:
Hyd motor drive for Bogballe M2W
As some of you may be aware we bought an M2W there about 3 years ago I think, and at the time I specced a 540/1000 speed reduction gearbox as the 8870 here is 1000rpm pto only. Now, what I should have done is got the hydraulic motor drive option, A) Because I think they were around the same cost...
I fitted an oms 80 motor to our Bogballe M2W . Running it on an 8870, TS115 and a T7 New Holland. Works absolutely spot on. I got a motor with a 6 spline pto shaft for ease of coupling to the spinner, but it's relatively easy to get jaw couplings for 25mm parallel shafts to 6 spline from the like of Hydrokit.
- Location
- Worcestershire
On our 8870, same hydraulics as your challenger, we had to fit an adjustable flow restrictor on the free flow return line. I know that sounds completely counter intuitive, and that it will blow the seals out of the motor, but it won't!!! We have them fitted on the accord air drill hyd motor, the vaderstad rapid, and the bogballe spinner.
The rapid did about 5000 acres before the seals started to weep, and that would be pretty gpod going considering it was over about 10 years. The seals have never been done on the bogballe or accord motors.
Just turn the knob until the ever so slightest amount of backpressure is felt, you'll hear it or see the revs drop by a fraction on the motor. I'm only talking like 2 or 3 revs for the bogballe motor. I tried lots of other fancy valves to solve the issue, but an old timer mechanic told me this was the only thing that would work.
He was right!!!!!!
The rapid did about 5000 acres before the seals started to weep, and that would be pretty gpod going considering it was over about 10 years. The seals have never been done on the bogballe or accord motors.
Just turn the knob until the ever so slightest amount of backpressure is felt, you'll hear it or see the revs drop by a fraction on the motor. I'm only talking like 2 or 3 revs for the bogballe motor. I tried lots of other fancy valves to solve the issue, but an old timer mechanic told me this was the only thing that would work.
He was right!!!!!!
- Location
- Worcestershire
Thanks that’s very help full. Something like this i guess
Attachments
That's it, we fitted a 1/2" also. It's on every hyd motor driven machine, apart from the sprayer. Maybe there's more of a load on the sprayer motor, or maybe it's just the uneven running nature of a diaphragm pump, but it seems to run fine on that.
Always seems to be worse once the hydraulic oil is up to operating temperature.
- Location
- Worcestershire
Ill put one on the seed drill fan as this has also been surging 
It might take a few attempts to get it spot on, but once you have it right there shouldn't be any need for adjustment again. On the rapid we would run the fan at 3800 to 3900 rpm when the tractor was relatively cold, and as she warmed up the surging would start. By bringing the hyd fan up to its normal operating speed of about 4100 to 4200rpm, the increased flow and resultant increased back pressure was enough to stop the surging.
- Location
- Worcestershire
