574 3 point problem

Lucasbranham · Sep 19, 2017

I just bought an ih574 diesel.
The 3 point hitch seems to go up higher and not go as low as my other 574.
It also will not lower after it is raised until you raise and lower the draft control lever.
Also when it is all the way up to get it to start lowering you have to push it down until it starts moving unless it has some weigh
Just the position control lever will not make it go all the way down.
Any help would be greatly appreciated before I start taking it apart.

JimB2 · Sep 19, 2017

Hi, some solutions from archives:

3 pt will not go down:

Hi, there is a cover on the right side, in front of the rock-shaft. Remove and check if the spool valve moves with the position
lever. Make sure the draft lever is down. It has a long spring, with a rod, maybe the spring is unhooked.
Bernard le m?cano Qu?bec Canada

Hi, maybe the unload valve is stuck. Check with engine running, raise the hitch and pull at the same time the hydraulic remote
lever. If the hitch raises, you have dirt in the unload valve. This valve is under the seat and you can remove the large plug
for access. One trick is to loosen the large plug, unload valve, 2 turns and start the engine, the hitch should raise if the
valve is stuck. It has a small hole in the valve and just blow dirt out with air. Replace the O-rings.
Bernard le m?cano Qu?bec Canada

There is also adjustments on the lift arms and for the 3pt lift control lever for maximum lift height.

Hope this helps
JimB

Hope this helps

BarnyardEngineering · Sep 19, 2017

If it goes through the same range of motion, just starts higher and doesn't go as low, I wouldn't doubt but the 3pt upper arms can be "clocked" in various positions on the rockshaft like the larger tractors of the time. Remove the retention bolt from the end of the rockshaft, pop the upper arm off, and slide it back on one notch lower.

MARK ROBKE · Sep 19, 2017

Are you leaving the draft control lever all the way down? If it is not, the 3pt won't go down.If you raise the draft lever with the 3 pt arms down it will raise them,and if you raise the 3 pt up with the position lever,and then raise the draft lever all the way up,the 3 pt arms will raise even higher.That is normal operation.
There is an adjustment,I think it is called the drop response.You have to remove the seat,its platform and a small cover.i had to make a tool-I brazed an allen wrench tip onto a piece of tachometer cable,and a large washer on the other end.It is hard to explain,you need a manual.It is sensitive-only a slight turn to change it.Mark

Lucasbranham · Sep 21, 2017

Yes. I am leaving the draft control all the way forward or down. When I move the draft control lever about 1" up from the bottom of its travel it raises the hitch all the way up. Then push it back down to the bottom of its travel and it lowers the hitch all the way. Not sure if this helps with diagnosis.
Thanks for all the replies.

574 3 point problem

Lucasbranham

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JimB2

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BarnyardEngineering

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MARK ROBKE

Well-known Member

Lucasbranham

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