[AT] tractor hydraulic pressure measuring? Dean

[Steve W.]

John Wilkens wrote:
> Dean, i installed a good gauge in the pressure line and set the 
> bucket under a heavy (too heavy) load and got a reading of 1800 
> psi.  The empty bucket alone takes 1500 psi to lift.  This is a 
> smallish tractor (TO 35) but doesn't 1800 lbs lift maximum seem a 
> little woosey?    John W.
> 

1800 psi seems low for a relief pressure.

That number is NOT the same as maximum lift though. The only real way to 
get that number would be to measure it directly with a scale.

That is because although you could set down and calculate out the load 
using the psi number you also need to add in the piston diameter, 
cylinder angle, amount of leverage that the loader has based on the 
pivot angles of the cylinder against the pivot of the loader boom, 
friction losses, plus a few more things.


-- 
Steve W.