Hey guys,
Some of you may be familiar with the small diesel lawn tractors Kubota made in the 1990s. I think there were two versions, I have the T1600H. It features a 13.5HP 2 cyl diesel motor. There's really nothing special about it other than it's a relic and I don't want to scrap it. This particular model has a major design flaw that causes scoring on the hydraulic pump after a few hundred hours of operation. Once the pump is damaged, it fails to drive the hydrostatic motors properly. The warmer the tractor gets, the worse the problem becomes until it stops moving. The only remedy is to let it cool then go move it.
Kubota identified this problem and provided (at our cost of course) a replacement pump. The pump is internal to the rear differential. Well, Kubota has discontinued the pump and the entire rear axle assembly. other parts are available but they've clearly made an effort to kill off this machine by making the pump impossible to get.
I'd like to put another rear end on this machine and continue using the mower. I love it. It's simple, it's diesel and it's a one of a kind. It's also in great shape with only 334 hours on it.
I've never done anything like this to a mower before. I'd like to oversize the hydro pump so I can pull my aerator with ease but don't know what the factory specs are on any of these parts.
I plan to get the engine up to speed and measure the shaft rotation RPM... I assume that will get me an idea on my pump drive speed but as far as rear ends go... Any words from the wise? Recommended rear ends? Pumps? I can handle the hydraulics, fab, etc. I'm just in the dark in terms of flow rate and pressures typically used by these mowers. Do the rear ends specs the proper hydro demand?
Thanks for any input!
Scott
Some of you may be familiar with the small diesel lawn tractors Kubota made in the 1990s. I think there were two versions, I have the T1600H. It features a 13.5HP 2 cyl diesel motor. There's really nothing special about it other than it's a relic and I don't want to scrap it. This particular model has a major design flaw that causes scoring on the hydraulic pump after a few hundred hours of operation. Once the pump is damaged, it fails to drive the hydrostatic motors properly. The warmer the tractor gets, the worse the problem becomes until it stops moving. The only remedy is to let it cool then go move it.
Kubota identified this problem and provided (at our cost of course) a replacement pump. The pump is internal to the rear differential. Well, Kubota has discontinued the pump and the entire rear axle assembly. other parts are available but they've clearly made an effort to kill off this machine by making the pump impossible to get.
I'd like to put another rear end on this machine and continue using the mower. I love it. It's simple, it's diesel and it's a one of a kind. It's also in great shape with only 334 hours on it.
I've never done anything like this to a mower before. I'd like to oversize the hydro pump so I can pull my aerator with ease but don't know what the factory specs are on any of these parts.
I plan to get the engine up to speed and measure the shaft rotation RPM... I assume that will get me an idea on my pump drive speed but as far as rear ends go... Any words from the wise? Recommended rear ends? Pumps? I can handle the hydraulics, fab, etc. I'm just in the dark in terms of flow rate and pressures typically used by these mowers. Do the rear ends specs the proper hydro demand?
Thanks for any input!
Scott