B2320 I want to increase the lift capability

[TerryMcQ]

I knew it was a pressure guage I needed, just not which one without looking at them to see that they attach to the supply side coupler. Last time I worked on hydraulics was in 2006 for lifting houses that settled. It was a hydraulic ram with a 4 inch bore and the pump was electric-over-hydraulics and had gauge attach to hose which was direct connect instead of quick connect. Sorry I never worked on farm tractors except to change all fluids and filters and level my belly mower deck.

 

[TerryMcQ]

Thanks LD1 for the info that makes a lot of sense. I knew I could lift more just of the ground because the 1350 pound concrete slabs I moved would ONLY lift them high enough to drive slowly. Wasn't thinking of arc of power or whatever the correct terminology is. My math didn't go beyond geometry and that was in 1976 high school. I now understand why not to beef up cylinders and I DID actually only intend to increase load lift just off ground by hopefully 3-4 hundred pounds and now understand why I should only adjust pressure by 10% which a lot of other posts on this thread have also said and one or two said by 250 pounds. I also didn't think of lifting to full height with that sort of load as I know what will happen real quick with a 1,000 pounds trying to get 7 feet or so in the air on a tractor that weighs about 1,800 pounds with loader on, maybe 2,200 hundred with belly mower for counter weight and something heavy on the 3-point: without attachments it's tipping, with attachments it might not move even though it will lift partially or all the way plus, you know, that little thing about the loader booms crumpling like beers cans and/or welds failing and giving me a new hat.
I'm looking for the pressure gauge online for my local stores now. The washers i will either order online from kubota or, as suggested several times in this tread, use a #10 washer(s)

 

[BAP]

BX Expanded sells a kit for checking the pressure and shims to raise it for BX and B series tractors for $69.00, here is the link.
Hydraulic Pressure Tester

 

[TerryMcQ]

thanks BAP

 

[BAP]

Your Welcome

 

[Jerry/MT]

I asked my local Kubota dealer if I could put bigger cylinders and if necessary a a pump to increase the load I can handle. He said the changing the cylinders will tear up the pump which thinking about it sounds about right because of the pumps ability or lack of to keep up with the flow required. So change the pump but he said that is the only pump Kubota makes that will fit the B2320. Well from buying the skid steer attachment converter form a La 504 loader to put on my L304, I would think it's possible�f the LA504 has more lifting capacity that the L304 it might be true that the pump and cylinders would interchange. The Machine the LA504 comes on is a B26XX something and I would look it up but in my humble opinion, Kubota's web sire sucks big time and it's sometimes impossible to find technical data like this.
Anybody else try and succeed doing this and have some part numbers they could share, especially for the pump but I'm reasonably sure I can deal with the cylinders. All info would be appreciated including the cylinders so I don't have to find them. I've measured the length from center to center of the cross tubes and found tons of cylinders that would fit but have to make sure the existing pump can handle or find the pump that will handle it and has the right mount for my tractor. What other info do I need to provide to make sure it'll work? Not sure how many different motors and possible pumps were available on the B2320.
One other thing. Is there a nomenclature plate for the transmission somewhere so I can make sure any pump recommended has the same mounting bolt pattern?

You can increase the piston diameter to increase the load capability at the expense of the response speed. If you want to maintain the piston speed you have to increase the pump flow capacity which generally means a bigger pump. But remember when you increase the load capability, you increase the material stress on the components. They were designed for a certain load capability plus a safety margin. You don't know what that margin of safety is and you will eat into it with the modification to increase the load.

Personally, I believe it's more important to match the machine to the load than to modify a smaller machine to pick up a load it isn't designed for. Modifications, unsupported by design information, usually result in finding the loaded structure's weakest link. Your dealer's reluctance is not likely not driven by a "dealer's greed' but by a concern for legal liability. That legal liability shifts from the OEM/dealer to the modifier. So I can understand the dealer's reluctance top help you re-design a machine with no data because he will then share the liability with you. For safety's sake, reconsider modifying your machine.