Superior Loader question

dusty082000 · Apr 7, 2023

Hi everyone! I have a question about a Gresen 2702 valve on my 57' Ford 860. It has a 2 way spool on the bucket lever and a one way on the lift. I changed my lift cylinders to 2way cylinders because I thought the spool for my lift was capable of 2 way on the valve (had a plug on the valve where I connected my line for cylinder down). Then I found out it was not. Anyone know roughly what flow these valves are rated for ?? I ask because Tractor Supply has a double lever valve bank but it's rated at 10gpm. Thanks for any information

Jim.ME · Apr 7, 2023

The best info would be the capacity of the pump and size the new valve to it. This site's store shows a 14 GPM pump as a generic replacement for some loaders like Superior and Wagner on a number of tractors. One can guess that is about the capacity of your pump, if you have a crank driven front pump. I would look for a valve of that rating or slightly more than that, some sources recommend about 25% more. JMHO

Is the TSC valve an actual loader valve, with a detented float position for the lift function, or just a direction control valve?

Others will be along with more thoughts for you.

This post was edited by Jim.ME on 04/08/2023 at 05:28 am.

Muir hill 101 · Apr 8, 2023

The tractor supply valve should work the speculations
for the 860 say just under 5 gallon per minute for
hydraulic flow hopefully someone will happen along
and confirm

Jim.ME · Apr 8, 2023

About 5 gallons per minute appears to be the tractor internal hydraulics. If his Superior loader is like most of that vintage, its hydraulics are separate from the tractor's system and use a dedicated pump driven off the front of the crankshaft.

dusty082000 · Apr 8, 2023

(quoted from post at 05:34:08 04/08/23)
About 5 gallons per minute appears to be the tractor internal hydraulics. If his Superior loader is like most of that vintage, its hydraulics are separate from the tractor's system and use a dedicated pump driven off the front of the crankshaft.

Thanks for the responses! I appreciate it. It is a crankshaft driven pump. I'm going to pull both spools out and have the single spool put on a lathe to match the double acting spool. Worth a try. Maybe the tractor supply valve will be a back up plan. It's the only thing local in my area unless I order something. Would the crank driven pump be roughly 5gpm as well??

dusty082000 · Apr 8, 2023

(quoted from post at 05:34:08 04/08/23)
About 5 gallons per minute appears to be the tractor internal hydraulics. If his Superior loader is like most of that vintage, its hydraulics are separate from the tractor's system and use a dedicated pump driven off the front of the crankshaft.

Thanks for the responses! I appreciate it. It is a crankshaft driven pump. I'm going to pull both spools out and have the single spool put on a lathe to match the double acting spool. Worth a try. Maybe the tractor supply valve will be a back up plan. It's the only thing local in my area unless I order something. Would the crank driven pump be roughly 5gpm as well??

Jim.ME · Apr 8, 2023

I would expect the crank driven pump to be nearer to 10 gpm, maybe more.

The porting in the valve body may be more of the issue than the spool. For double acting cylinders it needs to be ported to supply pressurized oil to both ends of the spool, not just a path back to the reservoir when lowering. Check it over carefully before just machining the spool.

dusty082000 · Apr 8, 2023

(quoted from post at 05:57:51 04/08/23)
I would expect the crank driven pump to be nearer to 10 gpm, maybe more.

The porting in the valve body may be more of the issue than the spool. For double acting cylinders it needs to be ported to supply pressurized oil to both ends of the spool, not just a path back to the reservoir when lowering. Check it over carefully before just machining the spool.

That's true. I assumed the that because there was a port for a hose on the body that the spool was double acting, and I was wrong. Probably the same for the passages on the body. Maybe the body is machined with the passages? I thought the 2702 body could have two double acting spools, but your probably right about the passage not being machined. I almost had the spools out yesterday, but the tractor is at my camp. I couldn't get the flat head screws to break loose on the end of the spools. Need to bring a couple more tools out there

RobCons · Apr 10, 2023

Look at Surplus Center or other on line stores. You may be able to get a joystick valve for close enough to the machining cost making it worth while to just swap valves.

Superior Loader question

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