Grapple Grapple clamp preasure

dirt clod · May 23, 2008

Thanks again. Just got done doing a search for what you was saying. One person posted that they swapped the selector valve from the curl/dump valve to the raise/lower valve and this worked. I have not found a setting for a non- regenerative curl/dump on my joy stick. I have never looked for this before though. Its a LA480 loader. One of these two should fix it.

kennyd · May 23, 2008

I just did a search for "regen" in the Kub forum...

It seems that the Husco valves have the regen on the first part of the joystick travel-then there is a detent or stiff spot to overcome if you keep pushing right to get out of the regen. This is exactly opposite of mine.

Think your valve has that?

dirt clod · May 24, 2008

Kubota offered the 4 way valve on some models for a little more money.
I don't know if it was offered for my 98 model, either way it only has the 3 way. Swapped the selector valve to the loader arms and it has good preasure. I put a old metal gas can under it and the claws went all the way through it.

Thanks for your help, it was getting stressful. And I got this to make life easier

.Sure it will now.

kennyd · May 24, 2008

Great, glad you figured it out...

IMHO, This was a big mistake Kubota made for a long time using those 3-way valves. Lot's of people later bought snowblowers or front blades only to find out later they needed to upgrade (replace) the valve to get them to work...

Northland · May 25, 2008

glad you got it figured out.

I have a Tatro grapple on my bucket along with a WR Long valve kit on the FEL and it has tremendous pressure. Maple trees, huge rocks...nothing falls off the bucket

dirt clod · May 26, 2008

Was cleaning up some property this morning. When moving old fridges it would either squish the door in when clamped or punch into the sheetmetal a few inches.

kennyd · May 26, 2008

dirt clod said:
Was cleaning up some property this morning. When moving old fridges it would either squish the door in when clamped or punch into the sheetmetal a few inches.

Well those pictures sure proved you got it working!

3RRL · May 26, 2008

Glad you got it figured out and your bucket grapple works great.
Go out and have more fun with it now.

Northland · May 26, 2008

nice work dirt clod

I see you have the same issue with the grapple hoses. I had a **** of a time figuring out a way to secure them while leaving the play in the movement of the grapple opening and closing. I ended up getting hydraulic hose wraps that fit both hoses into one wrap and then tied them off with HD zip ties.

firefighter9208 · May 27, 2008

OK, now you've got me wondering what's wrong with my grapple. I also have very little clamping pressure. It is a Tatro grapple and I love it, but it has little clamping force. I thought it was the 2x6 cylinder. I am running the grapple off my dealer installed rear remote. It is a Factory Remote. Any ideas?

I'm stupid when It comes to hydraulic jargon. The tractor is a Kubota M4800. I have a Bushhog M346 Loader that was installed by the dealer. The tractor has an open center hydraulic system (I don't know what this means?).
Chris