FEL seems weak- how to check

[LD1]

Easy, the angle of the cylinder changed.

This was discussed in length about a month ago.

To find the force of a cylinder mounted on an angle, you multiply the total hydraulic force by the Sine of that angle.

So lets say at ground level the cylinder is at 30 degrees. Raise it may be like 10 degrees.

Sin30 = .5
sin10 = .17

So if the cylinder can straight-line push with 2000# of force, with that cylinder mounted on a:
30 degree angle, there is 2000 x 0.5= 1000# of LIFT force
10 degree angle, there is 2000 x 0.17 = 340# of LIFT force

See the difference?

 

[J_J]

A FEL with a good pump will never lift at max cyl capacity.

The cyl is always at an angle, and gets worse with lift.

Probably starts at 45 to 65 degrees and decreases as you lift.

Best lifting angle is when the lifting point is 90 degrees to the cyl lifting point.

You can regain some lifting potential by tilting the bucket back over the lifting pins.

2 in bore, 1 in shaft at 3000 psi = 9425 lbs X2 = 18,850 lbs

--------------------at 45 degrees = 6664 lbs X2 = 13,328 lbs

--------------------at 20 degrees = 3223 lbs X2 = 6446 lbs

 

[oldballs]

Who'd thunk that reading a tractor site, one would have to recall his trigonometry and physics classes...........ah heck, forget that. Take the word of the guys that really know.

 

[4570Man]

Okayeeeee what has essentially changed? Seems to me that the Foot-lbs equation would be that the lbs were the same but from a foot standpoint, the moment of inertia would be a lot longer theoretically if the arms were straight out vs being almost vertical. At 90 degrees the feet would be about zero where at 0 degrees they would be at a max.

This is not a forklift. A tractor does not lift vertical with a vertical cylinder.

 

[J_J]

Of course not. 90 degrees is the angle that the cyl maximum force is achieved.

That's a why I put the angles in there.

The angle is changing as you lift

 

[stuckmotor]

If you think all that figuring is difficult, wait until you try long division.

Who'd thunk that reading a tractor site, one would have to recall his trigonometry and physics classes...........ah heck, forget that. Take the word of the guys that really know.

 

[Texasmark]

Easy, the angle of the cylinder changed.

This was discussed in length about a month ago.

To find the force of a cylinder mounted on an angle, you multiply the total hydraulic force by the Sine of that angle.

So lets say at ground level the cylinder is at 30 degrees. Raise it may be like 10 degrees.

Sin30 = .5
sin10 = .17

So if the cylinder can straight-line push with 2000# of force, with that cylinder mounted on a:
30 degree angle, there is 2000 x 0.5= 1000# of LIFT force
10 degree angle, there is 2000 x 0.17 = 340# of LIFT force

See the difference?

Okayeee again. So the cylinder angle efficiency explains why my bucket tilting mechanism (not to be confused with the upper cut loaders with the constant leveling functional arm) has an additional arm that does the tilting while the cylinder pressure remains inline. The old JD 152 as I recall the number of the loader I once had, didn't have this extra arm. Either JD engineers didn't know about it or figured they didn't need it......with an 8' bucket on a 70 hp 2010?

 

[Tx Jim]

Okayeee again. So the cylinder angle efficiency explains why my bucket tilting mechanism (not to be confused with the upper cut loaders with the constant leveling functional arm) has an additional arm that does the tilting while the cylinder pressure remains inline. The old JD 152 as I recall the number of the loader I once had, didn't have this extra arm. Either JD engineers didn't know about it or figured they didn't need it......with an 8' bucket on a 70 hp 2010?

Was your JD 2010 ind or ag? BTW 2010 was only 46.86 HP not 70

 

[LD1]

Okayeee again. So the cylinder angle efficiency explains why my bucket tilting mechanism (not to be confused with the upper cut loaders with the constant leveling functional arm) has an additional arm that does the tilting while the cylinder pressure remains inline. The old JD 152 as I recall the number of the loader I once had, didn't have this extra arm. Either JD engineers didn't know about it or figured they didn't need it......with an 8' bucket on a 70 hp 2010?

I have no idea at all what you are asking

 

[Tx Jim]

LD1
I might be wrong but I think TxMark is referring to bucket linkages similar to parts key 12 on the model 720 FEL on a JD ind 2010