Max 28 backhoe question

[John32369]

I recently purchased a backhoe for my Max 28, its the 26B model. I've noticed after I park it and curl the arm and the bucket up or if I take it off and leave it sitting on the stabilizers, that they leak down and I have a somewhat lower backhoe to put back on the tractor. Is this normal?

 

[linuxman51]

I recently purchased a backhoe for my Max 28, its the 26B model. I've noticed after I park it and curl the arm and the bucket up or if I take it off and leave it sitting on the stabilizers, that they leak down and I have a somewhat lower backhoe to put back on the tractor. Is this normal?

yeah that's fairly normal over time. Mine would 'hold position' for maybe a day, and then I'd have to hook the remotes up and raise it back up. was never really a big deal but it is kinda funny.

 

[j wilson]

same here, leaks down...

 

[John Dougherty]

John 32369,
I concur with the input of the other posters. They are right on. If I were you I would go ahead and lower the stabilizers, etc. and release the pressure off of everything. I don't know if it hurts anything, but it can't be a bad thing either. I have the same BH and recently had a problem with my BH and its operation. As it turned out the positioner valve had blown its guts out. This left a jerky motion for the main boom (next to the tractor) on the BH. What I believe happened is that the snap ring was not installed correctly. With that, the guts blew out the bottom of the positioner that is attached to the valve body. The boom actually still 'works' but the action is jerky and doesn't have much down force. I suppose that it could happen to any of the positioners in the system. I mention this so anyone reading this might recognize this problem if it happens. It won't be obvious and there won't be fluid squirting on the ground. You will have to take the cover off of the valve body and inspect it. If you put your finger up and into the positioner you will feel a void as there is nothing there, only the spool.Others know more about this than me, but the spool is the solid piece that comes down through the positioner body when actuated by the the BH lever. Good luck.

 

[RaymondEdward]

Blocking the backhoe frame with car jacks is a good idea to keep the unit up when unit is disconnected from tractor.

 

[j wilson]

john, do you know whats involved in replacing or repairing the positioner valve, i believe i have the same symtoms with my max 28 backhoe

 

[mitchash]

I made a cart so I can wheel it around the shop, it stayed in that position all winter.

 

[mitchash]

Also I put a ratchet strap across the stabilizers to keep them from leaking down. It worked great!

 

[DavesTractor]

As mentioned, leaking down slowly is normal and happens on all backhoes. It is not a defect, even on a brand new zero hour machine.

 

[Navasot]

On the tractor is should leak down but if its leaking down while disconnected id be checking for leaks... mainly at the hose connections... unless there is air in the system there is really no were for fluid to return to. Are you having to add Hyd fluid to the tractor often?