'59 PM little downward pressure on lift arms?

[colobio]

We're trying to plow now with the "new" PM and the 3-pt lift arms will lift, and go down, but will not exert enough pressure to cut into the ground with a new plow. It should have enough downward force to lift the tractor, but it sounds like it's bypassing somewhere.

Anyone have a schematic of these hydraulics or an idea of what could be the issue with not having enough hydraulic pressure to force down on the lift arms?

[super6954]

Hi Colobio
There will be no hydraulic downward pressure on the arms to lift the tractor You need a Belarus Tractor to do that with the arms,They had a DA cylinder on the hitch . The Fordson arms work on a single acting cylinder, meaning the power lifts but not pushes down. thats weight / gravity only. I guess the plows not heavy enough/ set right or the grounds like concrete to break up
My dads a 50 year expert on plowing he just said try shortening the top link and see what happens .My plow skills are more if it was green up and brown down at the finish its good enough
Regards Robert

[henk]

Put the plough on a flat surface and level it both sides. Check if there is about half to one inch free play behind the share point. And the landslide should be free about the same size.
Your lift arms should be going up towards the plough when on depth in the ground. Than as Robert say try the top link.

[henk]

http://issuu.com/amberlady/docs/good_ploughing_hi-q

[colobio]

Wow!

THanks a million everyone. I have the hydraulics apart now and it's very obvious that the lift arms only lift, nothing to exert downward pressure. At least I can replace all the seals and O-rings to solve the multiple leaks.

Plow not heavy enough, ground like concrete, probably mal-adjustment of the angle, but that's the only problems I can see....

We'll have the hydraulics back together soon and back to doing what we can to get this plow into the concrete again.

[super6954]

Hi Colobio
well atleast you learned something new today
The 50 year expert in the family just looked at the picture of your plow in your other post here when your other half was priming it.
He thinks the mold board is a deep digger, he thinks that it will have to be fairly deep in the ground to get the furrow to turn over properly.
He said to make sure the point is below the bottom of the landside. if it is not he said it will just run on the bottom of the side and not start to dig in . the side is that about 2ft long by 6" flat piece that faces you in the plow picture.
We tried to line the bottom of the side and point with a straight edge on the picture. it did not give a conclusive answer as to the point being lower or not so check it out and see.
Dad said if it is not below you may have to really shorten the top link and it might work if your lucky.
This is another one of those things thats hard to diagnose on the net a guy with dads experience would tell ya in 3 minutes what was going on and wrong if he was there.
Regards Robert

[Pavel]

Not sure how many boards your plough has, but on opening a field one usually uses the leveling arm to adjust the level so that only the front board enters the ground. This also concentrates the weight of the plough onto this board and helps penetration. As well, the point, or share, should have a slight downwards tilt, but not too much as it could break the frog. Many ploughmen also place additional weights on top of the frame.
Ploughing out a headland furrow, using the setup above, also aids penetration at the start of each bout.
Once you are in proper ploughing mode, adjust the top link so that the heal of the thrust plate on the rear furrow is leaving just a barely perceptible groove in the furrow bottom.
Pavel

[curtsat15]

That's a good link Henk! Thanks!