Pulley hydraulics?

550Doug

Member
Location
Southern Ontario
I have a tractor without hydraulics but it does have a side-mounted belt pulley as well as pto. Since I already have a nice PTO Hyd pump from Prince, is it possible to mount the Prince pump onto a dismantled pulley with some sort of pto shaft adapter? That way I'd still have pto available while using hydraulics. The pto speed typically is around 540 rpm, however, the belt pulley is about 1150 rpm. would that be too much for the Prince pump? (I think the Prince pump is about 18 gpm rated)
 
havent tried,but my guess would be in most cases not. some tractors such as old 2 cyl jd has the clutch there. though its not best you could add a pto extension very easily. some w series tractors without hydraulics with the belly mounted pto shaft probably could run one if you cut the grooves in shaft correctly but it would be prone to damage being underneath.
 
Ever thought putting a large power steering pump on?that would give you live hydralics for a cheap/reasonable cost.I've seen that done successfully done several times.
 
What do you plan to use the hyds for?? If you want to use the belt pulley your better off to use a hyd pump made to be hooked to the crank shaft pulley and hook it to the crank shaft and be done with it. and that way you would have live hyds not hyds that stop when you push the clutch down. Or as the other guy said a simple power steering pump will give you 1500psi of hyds
 
What model tractor? Might consider a front mount pump, and get independent hyd. What are hyd needs? Pump needs to match that. Power steering pump provides very little flow, has small reservoir.
 
A neighbor had a self contained unit that he got from TSC way back when they had things like that. He mounted that on a pipe through one of the cultivator pipe holes in an Oliver 77. Worked good,just didn't have live hydraulics was all.
He made a plate with a sprocket to bolt on in place of the pulley and ran his with a chain drive. He'd just shut the whole thing off when he wasn't using it.
 
You would need to match up the speeds I'd think. Your concept is good, might be easier to get a pump that matches the belt pulley speed rather than cobble jack shafts together.

--->Paul
 
That's not a new idea, been done before on the factory floor. I believe... and will be proven wrong I suppose.. that Allis Chalmers kept the flat pulley mechanisms on the? D17's we'll say, but put the hydraulic pump right there on the shaft, on the side of the bellhousing. sort of an afterthought, but it worked as the tractor became the 170. You could research the speed of their pump- hey just ask the AC forum here or unofficial allis. Don't believe me, I lie alot... :)
 

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