Fast dump?

   / Fast dump?
  • Thread Starter
#21  
What you are saying, does not seem logical. Can you verify that you have float on the lift arms?

Would you do this test on the curl mode. With the bucket on the ground, curl the bucket fully down, by pushing the lever all the way to the right. Let us know if the curl mode of the bucket will lift the front of the tractor.

This time, only push the lever to the right about 3/4, and see if the curl mode will lift the tractor front end off the ground.

JJ - The loader does have float on the lift arm and the curl cylinders will lift the front of the tractor off the ground. It lifts the front end when the handle is all the way to the right and at about 3/4 to the right. 3/4 is just a little faster. The pressure/force seem the same in both positions, just a little less flow when the handles all the way to the right.
 
   / Fast dump? #22  
Had a chat with my dealer about this and I kinda sorta understand what's going on. I want to get my hands on a schematic for the valve to see what I'm not seeing, but we'll see when I get out there to have them make me a copy :)

Anyway. When you go to the travel limit of the curl circuit, it gets slower because it is diverting some fluid to the lift circuit (even if you aren't using it) so you can get power to both. Otherwise the fluid will take the path of least resistance and you won't really get power to both circuits if one has load and the other doesn't. Clear as mud? Think of the "full right" position as feeding a flow divider that won't allow full flow to the curl circuit because it is reserving some of the flow for the lift circuit.

Or just don't move your handle all the way to the right :D This is actually something I hadn't noticed about my own loader prior to this thread and had to experiment with it myself. The curl dump is definitely faster when you *don't* go full right.

-rus-
 
   / Fast dump? #23  
Had a chat with my dealer about this and I kinda sorta understand what's going on. I want to get my hands on a schematic for the valve to see what I'm not seeing, but we'll see when I get out there to have them make me a copy :)

Anyway. When you go to the travel limit of the curl circuit, it gets slower because it is diverting some fluid to the lift circuit (even if you aren't using it) so you can get power to both. Otherwise the fluid will take the path of least resistance and you won't really get power to both circuits if one has load and the other doesn't. Clear as mud? Think of the "full right" position as feeding a flow divider that won't allow full flow to the curl circuit because it is reserving some of the flow for the lift circuit.

Or just don't move your handle all the way to the right :D This is actually something I hadn't noticed about my own loader prior to this thread and had to experiment with it myself. The curl dump is definitely faster when you *don't* go full right.

-rus-

What is the brand name on your valve? What you are saying about some kind of diverter circuit, doesn't make sense, about the fluid from the curl cyl being diverted to the lift. What if you had the lift arms set ,and then you went to curl, and the lift arms moved, could make for a bad situation. Anyway, I have not heard of this before, and no good reason for it. So, are you saying that the cyl is in regen until you push the valve to the limits, and then get full pressure?

http://www.hwhcorp.com/ml37939.pdf
 
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