FEL hydraulics overload question

[digger2]

As john bud has asked"can you raise the loader when fully loaded",Yes i can,and right after i posted this question i thought the same thing.Anyway,
i didnt want to risk messin something up.OK,thanks.
digger2

 

[Mahana79]

dont know how much this oak firewood weighs but from the looks of the front tires it is very heavy. Had to rev up the engine for the hydraulics to even lift it

i think that's a bit more than a bucket full

 

[john_bud]

As john bud has asked"can you raise the loader when fully loaded",Yes i can,and right after i posted this question i thought the same thing.Anyway,
i didnt want to risk messin something up.OK,thanks.
digger2

Well, there ya go! No problem and you probably picked up a few pointers on hydraulics.


That's a good time tractoring.

jb

 

[N80]

dont know how much this oak firewood weighs but from the looks of the front tires it is very heavy. Had to rev up the engine for the hydraulics to even lift it

I think I can see a little daylight under those rear wheels.

 

[m7040]

No the rear tires had good traction so no problem there. They are loaded and now yesterday I mounted a 2000 lbs ballast box on the three point. That is just so amazing how much that helps. Pushed over a large tree yesterday with no wheel spin at all.

 

[Mickey_Fx]

This discussion like most I've seen on FEL capacity is focused on the wrong thing. You should be looking and paying attension to the front tires/suspension and stability. My money is on rated load for your tractor if FEL is factory model, takes weight transfer and stabilty into consideration.

Have done all the math on my tractor and for every pound placed on the bucket, the front tires see an additional two pounds load on them, i.e. weight transfer. Tractor and setup will vary but you should know and pay attention to how much load the front end sees. How much extra capacity does your front tires have after carrying the weight of the tractor and FEL?

 

[California]

This discussion like most I've seen on FEL capacity is focused on the wrong thing. You should be looking and paying attension to the front tires/suspension and stability. ...
Have done all the math on my tractor and for every pound placed on the bucket, the front tires see an additional two pounds load

Great point. Especially with an aftermarket loader the tractor may not even have the oversize tires that would have accompanied a factory loader.

I've been thinking about another issue. The bypass is available when you are lifting, sending fluid to the cylinder. But after you return the lever the system is sealed with nowhere for excess pressure to escape.

I burst a hose when I stuck a loader fork in the ground and drove forward (clearing a down tree). In this case a $30, 20 year old hose was the first thing to go instead of bending anything so that was the best that could have happened. It seems to me it would be easy to create this sort of overload bouncing on rough ground with a heavy load.

Do any tractors have overload relief in each separate circuit?

 

[alchemysa]

I made a comment earlier in this thread that I thought the relief valves would take out the shock. However, upon looking at the parts diagram (because my tractor is too far away) it appears that the relief valve on the control unit may only serve to relieve excess pump pressure when attempting to lift a too heavy load. (As also does the relief valve at the pump itself). It appears on the surface then that theres nothing to take the shock off the loader. But then again, the parts diagram doesn't show the internal design of the control unit so perhaps the 'backpressure' from a bouncy loader is plumbed back to the relief valve somehow. It would seem sensible to me that some sort of pressure release is built into the loader/bucket circuit.