I have a Kioti 1914 that I bought back in 1996. It has been a good little tractor thorough the years. It has an Allied loader on it and a Woods 7.5ft subframe mounted backhoe on it. The backhoe works fine because it uses a PTO hydraulic pump. The front loader moves slowly until you get into the revs as many have stated here before. I did a pressure test on the tractor and it hits 2500psi an max revs but produces almost nothing just off idle. The bypass on the loader it adjust all the ways up so the tractor pump unloads before the loader relief valve. I am looking to increase the flow of the hydraulics so that I do not have to rev it over 1800 rpm to get decent hydraulic cycles. I am hoping to get a pump that will support 10 gpm and bolt to the original location. The problem is I can not find a pump with the flat tang drive to replace the anemic 6gpm pump. Just wondering if anyone had found a solution to replace this pump. Thanks.
Increase hydraulic flow on Kioti 1914
MinnesotaEric
Super Member
Discuss this with your local machine shop.
oldnslo
Super Member
I would question if the flat tang drive would handle the increased torque required for that increase in flow.
From your description you are also losing flow if you must be at high RPM to achieve pressure. A good system should build pressure at half throttle or less.
From your description you are also losing flow if you must be at high RPM to achieve pressure. A good system should build pressure at half throttle or less.
It does build pressure just off idle, but the speeds are slow until I get the revs up. It is not hydro so I like to keep the revs down a bit when using the loader. I did see that on the Kubota B2200 uses a tang drive pump and that tractor is rated at 15 gpm, so it should support 10 gpm.
I did see that on the Kubota B2200 uses a tang drive pump and that tractor is rated at 15 gpm, so it should support 10 gpm.
Are you suggesting that the machine shop might be able to machine the shaft of another style pump or work on the existing pump for more flow?
MinnesotaEric
Super Member
Maybe but it sure would be easier to make an adaptor.
ptsg
Super Member
No way a B2200 has 15GPM of flow available. Unless I misread your post.
Even at 2000 PSI, 15GPM would require about 20 HP. Leaving nothing left for the rest of the functions.
Finding a bigger pump for a tractor, is usually very hard because it seems like manufacturers spec their pumps with just enough minor changes that an of the shelf unit won't work. Either being an odd number of splines, or different mounting dimensions.
Another possibility, could be removing the current pump and make a cover plate to go in its place, then mounting a new pump in front of the engine, using a love joy coupler. Finally, reroute the suction line to feed the new pump and make a hose for the pressure side.
