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⁰ Thd cylinder will work regardless of the condition of the seal. You could take it completely out and it would still lift. Dan

Understood. Your bucket circuit is fine - leave it alone and concentrate on the lift circuit. Once you unscrew the female coupler on the rod end lift hose the rod end of both lift cylinders are open to atmosphere and cannot pressurize. If you start the tractor and move the joystick to the...

Not in a million years. Dan

Well that is more informative. Put it back as it was. With the loader resting on the ground remove the female coupler on the rod end lift hose and put the end of the hose in a clean bucket. Start the tractor and try to raise the loader. If the lift circuit is working the loader should raise and...

There are mutiple ways you can have this problem - couplers are just one. Guessing is not a reliable diagnostic technique. The most reliable way to diagnose your problem is to identify which couplers control the lift and bucket functions. Then you can begin to experiment with the individual...

All it does is confuse me. I suggest you identify which function corresponds with the colors. Dam

You have a tiny machine with a tiny hydraulic flow. That is not an issue with any with any style coupler. Personally I would stick with the retractable sleeve style coupler on something that size due to price. And just to be clear the couplers on your Summit 3rd function kit ARE NOT...

So the pump is good. Why dont you tell us exsctly where your "after" test point was and what procedure you used to generate pressure. Dan

Presumably he he is ahead of the primary system relief. Many (most?) small gear pumps are capable of producing that and higher in a controlled (throttled) test. In fact many are rated for continuous or intermittebt use at 3600 PSI. Simply gives the pump a clean bill of health. Dan

Check pressure ahead of the relief and then after. Dan

Float connects inlet and both work ports to tank. To use a DA valve with a SA cylinder all you need to do is connect the "extra" remote outlet to tank. Dan

Disconnect the coils and operate the switch. If there is a short to ground in the wiring harness the fuse will still blow. If it dors not bloe the probkem is in the valve. Dan

Success is sweet! Dan

I reread your problem description: That sounds like you may have power beyond and tank return lines reversed. Check your hose routing. Dan

You will get fluid out of the port with or without the sleeve. The difference is that with the sleeve the fluid is pressurized from the pump. Without the sleeve the port is also open to tank so there is no pressure. You can easily ID whats in the port by removing it. Some prince valves do not...

Do not mess with the pin - it needs to be in place. I can't find any documentation on that tractor but looking at the parts diagrams I would GUESS the hose you have marked as "feed" should be going to IN on the loader valve and the hose marked as power beyond should be coming FROM the power...

The feed from the manifold goes to the loader valve and the power beyond on the loader valve comes back to the manifold where it continues to the remotes. The manifold port connections and selector valve operation are described in the operators manual. Dan

I could guess but if you post a couple pictures of the connectors on the tractor we can ID what you have and give you a better answer on them. Edit: I had a look at the operators manual. It dounds like you have OEM remotes which are in fact the type of coupler with which you are familiar. They...

Cosmo SRL Busca, Italy. I have one of their 300# 3pt broadcast spreaders. Cosmo has been around for almost 40 years and are sold by a lot of US retailers including at one point TSC. I bought mine from TSC about 20 years ago Dan

I really like those Kubota housings and push/pull couplers but the ala carte price for the pieces is ungodly - a little north of $350 per set!! Dan