Recent content by Allegany Kubota

I'm an engineer and like to weigh options, alternatives, and solutions. My difficulties of this modification are routing the high pressure lines and building the replacement block. The alternative is rebuilding the sprocket chain coupler and repairing damaged keyways. The tractor has finished...

Hi, attached is a better picture of the FEL valve. The guage was to be temporary while I investigated a performance issue (the loader would not lift the tractor front). I understand the FEL input should be connected as line #4 in the attached diagram and the port that goes to the filter...

Thanks, I'm slowly getting it. Attached is a picture of my current FEL valve. The supply line is where the pressure gauge is. The four lines are for the lift and tilt functions. So I could take the line that goes to the filter and connect it to the return port as shown on the previously...

The return tank on the loader valve is an open air low pressure and could not run the 3 point control valve. I did not understand the term power beyond dleeve. Replace the (loader) valve may be an option. Question in the plumbing diagram showing 'Standard Condition' and Hydraulic Take Off...

I understand how your block works and where it is connected to the tractor hydraulics. My existing front pump system does not have a high pressure return. The pump provides the high pressure to the FEL valve and there is no high pressure return. Recycled hydraulic fluid is dumped into the...

I'm investigating switching my front mounted FEL pump for the tractor hydraulic system shown above. The highlighted item (53) is actually the cover for the oil pressure block? 52 is the OP block? Then to plumb the replacement block to my FEL control valves looks challenging and I was...

Yes, someone posted a diagram but I did not understand it enough to start that effort. I reassembled the shaft and my makeshift repair is working. I will remove the shaft and have my machinist rebuild the double sprocket and build a keyway in the shaft end and possibly even the pump shaft. I...

As I dive into my crankshaft to FEL pump problems. The double chain sprocket couple is extremely worn, should replace both sprockets. The splines are worn off the crankshaft. Someone drilled and pinned that end. The pin, probably a 1/4 in bolt was gone. At the pump end, the key was sheared...

TractorBill, Thank you for posting thise helpful pictures. I am having a similar problem. My splines are worn off, I have two set screws, the head on one is sheared off, the other broke on removal. There is a large hole on the opposite side that a set screw may have been there, but can not...