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Yeah, my dad went through a lot of those, tried the different things, some helped but it ended up being intermittent. He's getting frustrated with trying to source it, and has the money to do the full swap, so was thinking that would be the easiest option.

They are, and we have tried the swapping and managed to move the problem around, but there is more than one issue in the valve system from what we can see. There was initially a boom in problem, so he had the cylinder rebuilt and same problem. Also, the front bucket loses a lot of strength...

My dad has a L3901D tractor with a BH77 backhoe attachment. When the backhoe is on and connected it loses hydraulic strength to most everything. He has tried fixing it by swapping valves and seems to have found a couple faulty control valves. Kubota.ca lists valves, as well as the whole bank...

Not to a liquid, no. My dad got back to it before I did, and decided his best course of action would be to try drilling out the pin. That just created a pin with a rather large hole down the middle of it. However, once it was already an open tube instead of a pin, heating it a little was easy...

Update, pin is out. Air hammer did nothing, hot wrench ended up being the solution. Paint is cheap, right?! Thanks for all the suggestions!

Air hammer was the next line we were going to take. I'd like to avoid the hot wrench if possible, we just picked up the tractor and I'd hate to ruin the paint.. The previous owner did say to grease it every 10 hours, and the rod end pivots fine on the pin so I imagine it has been decently...

Hey, no worries. Technically, yes, it is more the 170, but they are both pins with grease nipple ends so potato, potato. The rod end will move on the pin, ever so slightly but there is a wiggle, so I'm fairly confident it's not bound there. There's also next to no weight on the pin from the...

Hey, thanks for the response. Mine is similar, but the bolt is on the outside and was the first thing removed. The hole is visible in the third picture I posted. My issue is simply in getting the pin (#060 in your picture) removed from the whole unit to remove the cylinder.

The hoe is off the tractor, and the top of the cylinder is already free. That pin came out no problem, hence the hesitance on this one. I've cinched the puller and liberally applied lube, so I'll just leave it overnight and try brute force and ignorance again in the morning. Thanks for the reply.

Hello, I'm having troubles getting out the lower pin (with the grease fitting) on a BH77 backhoe. I'm curious if it has to be pressed out in a specific direction? I currently have a puller applying pressure, but it doesn't seem to want to budge. Any advice is appreciated, trying to get...