Front end loade stalling engine

The loader valve is the old style.  I do have a liquid filled pressure gauge in the line, and will make sure not to let the pressure become a problem befrore I get it cleaned up.  I'm cleaning the valve tomorrow, and hope that is what it is.

What is the procedure for setting the valve once it has been cleaned?  I will mark where the lock nut is now, and go from there?  This loader has worked great since it was new, I use it almost every day for chores/helping neighbors, etc. 

I haven't had time to clean the valve today..but found something interesting.  I have been losing hydraulic fluid through the air breather on the reservoir for years, and have just been adding fluid-easier than dealing wih the problem.

Yesterday I adjusted the hich control valve because it seemed like my implements were just immediatey dropping when I lowered them-and the displaced fluid was going back into the reservoir so fast that it was gushing out of the breather ( the hole in the reservoir bolt cap under the seat ).

After adjusting the lower speed to a slow drop, no fluid loss, and hydraulics working much better.  Should have dealt with this sooner!!  Hope to get the valve cleaned tommorrow/Bob

PS:   be sure to loosen the set screw on the valve before adjusting, then retighten the set screw when the valve is set right – and a little moement of the valve makes a big change-go slow!   CW to lower drop speed ( float ), CCW to increase drop speed.     

THANKS!!

I Took apart the byass ( relief ) valve today, and cleaned the parts, lubed the parts up, and reassembled the valve.

I set the bypass pressure at about 1800 PSI gauge.  Works lik a new tractor!!

Appreciate the help from the responders!

Bob