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I am not a whole let clearer now but it sounds like your valve may be the problem. You seem to he describing a problem operating the spools on a joystick conyrol. I'd have a good hard look at the joystick linkages.

No more likely than a loss of pressure. You complained of difficult valve operation. That is not obviously consistent with high pressure loss through a leak. Pressure is easy to check with a $20 gauge but I would still like some ckarification on the valve issue. A spool blocked or jammed by...

That's what I told her :(

I own 4 Kubota tractors and they are covered with those fasteners. Hence my private little hardware store. Dan

Multiple possibilities. First thing to check - shut tractor off and operate loader valve several times to relieve all pressure. - eg move the lift spool into float and bucket to dump a couple times. Is the valve still hard to operate? Dan

I'd say pretty definitive. Ordinary everyday M8 cap screw with integral flat washer. AKA flange bolt or what newer Kubota parts manuals now call out as a SEMS bolt. I bet Messicks will ship you a DIN cap screw with 13mm head. Thats what I get from my local Kubota dealer when I hand them a part...

Kubota uses JIS fasteners and the head size on an M8 JIS cap screw is 12MM. I think its very likely that is a standard M8 x 1.25 screw. Dan

I have found the cost to rebuild cylinders of this size is usually as much as new cylinders. I have purchased these Prince WWX welded cylinders before and they are cost effective alternatives to rebuilding. They have cross tube ends and are generally straight drop in replacements for small...

Three hoses - pump pressure from manifold in to valve and power beyond out to manifold. Third hose is valve tank return to transmission.

JIC-6 is 9/16 UNF thread and 11/16" wrench across flats. JIC is 3/4 UNF thread and 7/8" wrench across flats.

JIC stands for Joint Industry Council and their hydraulic fitting standard is defined by SAE publication J514. The standard specifies a 37 degree cone and seat sealing surface held together with UNF screw threads. Fittings come in a variety of "dash" sizes with the most commonly used sizes on...

I crimp my own hoses on a regular basis.. FJ is female JIC swivel. 6B06 is probably 3/8 (06) hose x 3/8 (06) swivel which matches your ruler. Two wire braided hose is going to be either R2 or R16. I prefer R16 because it is more flexible and has a tighter bend radius. Generic R16 hose is...

If the end cover is off the spool should move freely - at least on a typical valve. Dan

My thought was it might be a jack bolt used for adjustment of some sort and does not actually screw into the tractor. Dan

Did the spool move freely with the detent balls out? Dan

I have a B7200DT and I know absolutely nothing about the HST transmssion but the driveline on these machines is almost 40 years old and old stuff breaks. I have had three different driveline failures in the 30 years I have owned mine. In fact mine is currently sitting in the shop leaking oil. I...

Open center with power beyond. I buy a lot of stuff from Burdens but if if you want cheap go here Not the cheapest valve they offer but a very good price for a joystick with float. No tax and no shipping - don't forget to buy the power beyond sleeve If that valve is out of your price range...

Or fuse in the solenoid circuit - a chronic issue with my G2160.. Dan

A gadzillion possibilities some quite inexpensive and some pretty pricey. The OEM valve is $924. and looking at the parts diagram it is not clear how it operates. I assume you could substitute a generic if you are not looking for originality. Would need to know more about the plumbing on the...

No 3pt sounds like power beyond circuit is wrong. No retract on the cylinders is more puzzling. My first inclination was tank return missing but that should lock extend as well. Double triple check the three hoses that go to the tractor to make sure you have them going to the right places. If...