Daedong DK501 Three point linkage hydraulic shudder

[Cattle farmer]

I have had a problem with three point linkage shudders for a while it used to stop after a while but now it won't and it's so bad I have to wind down the hydraulic flow to stop the shudders and once it stops I can't lift the slasher. I changed the oil and filter when it started and it made no difference. Please can anyone give me advise. Thanks

 

[RandyT]

If you are getting a jerking type motion when pulling an implement it could be related to the position of the draft control lever, Or malfunction in the draft control.. It is designed to keep a constant pull load on the tractor by varying the height of the 3 point for ground engagement equipment. When it is activating it will give a jerking feeling.

 

[Cattle farmer]

If you are getting a jerking type motion when pulling an implement it could be related to the position of the draft control lever, Or malfunction in the draft control.. It is designed to keep a constant pull load on the tractor by varying the height of the 3 point for ground engagement equipment. When it is activating it will give a jerking feeling.

Thanks for your comments Randy but I'm not pulling with the tractor just slashing or mowing the draft control makes no difference it's a strong up and down shuddering or jerking motion of the three point linkage that shakes the whole tractor. Thanks

 

[Leejohn]

Could be the feed back linkage, if it slides on the rod just oil it. The piston seals leaking and/or o rings under the 3 PT control valve, that is all in the rockshaft.