Hydraulic pressure

[Dranerb57]

I have a kubota L4330hst with a loader, what is the hydraulic pressure the tractor produces? Its flow is around 9.4 GPM

 

[Gordon Gould]

Welcome to TBN
Since no 4330 owners are coming around yet I'll give you a maybe answer. I am not sure about your specific tractor but from my limited experience all the L series machines I have seen were spec at a 2500 psi factory setting.

 

[Dranerb57]

Thanks for the info, I called the local kubota service dealer, they just said under 3000 psi

 

[geezer32095]

Go to Acepumps.com they list many of all brands.. thats where I found mine.

 

[Leejohn]

I have a flyer from 2007 and I well look tomorrow and see if it's in it and get back with you tomorrow night.

 

[Dranerb57]

Ok I'll try that site THANKS

 

[David_Kb7uns]

Service manual says relief valve setting 2625 to 2770 psi.

David Kb7uns

 

[Dranerb57]

Thanks, I just got on this site and you guys are great source of info!! I appreciate the help!!

 

[J_J]

Dranerb57,

The tractor will produce a pressure based on the load on the hyd system.

Relief pressure is set to relieve at a pressure below the pumps max pressure to protect the pump.

A 3000 psi hyd gage is highly recommend to monitor and trouble shoot the hyd system.

 

[Dranerb57]

J.J. is the gage something I can get at the kubota dealer, graingers, TSC?

 

[Gordon Gould]

I got mine here: Bottom Mounted Pressure Gauges

Here is a picture of what I have. The gunk inside you see is glycerin. A vibration damper. Right now there is a male QD that fits a rear remote female QD on my tractor. Put on what ever fitting/hose you need for the measurement port you need to connect to. A short hose with a 1/4" male NPT is often handy.

 

[J_J]

Yes, but you can probably get one at a TSC or order from

3000 PSI 2.5" LF LM GAUGE

 

[Dranerb57]

I'll get to TSC this weekend appreciate your help

 

[arlen4720]

Ken's Bolt On Hooks sells them now too. It's a 0-5000psi liquid filled gauge with a 18 inch (or so) hose and an ISO 5675 male plug. It would save you the trouble of putting one together. I was a little over 40 bucks, and I got in a few days. He has a few different sizes, I'm guessing you have 1/2 inch quick couplers.

 

[geezer32095]

drener I got on from NAPA auto parts it was in stock $30.00 Grainger had one for $58.00. NaPA was also closer to me.

 

[geezer32095]

So J.J. I should have measured the psi with a load on the scoop to find something closer to the max?? I only had the scoop itself on the TPH @ the time.. & was 1700-1800 psi. (just 4 my own info) I am happy with the way it works..

the only complaint I have 4 the scoop is the lifting spindles are 30 inches apart and the ones on my mower & BBlade are 26/27 inches. I am going to have a shop move the scoops to about the same so settings can be left alone when changing implements.. @ 30 inches there is barely any room left between the tires..