Overum ex plough problem

[saly123]

Overum Ex plough- when it’s turning over it’s only getting to half way, stopping and going back. Have noticed if the front furrow is about half way it goes over easier. Have changed the quick release couplings, tried a new valve block on the turn over ram & and it’s had new bearings on top and bottom of turn over ram... any ideas or suggestions.? People had problems in the past.?
Thanks

 

[Flat 10]

That’s a head scratcher. Same on all tractors?

 

[saly123]

Yea seems to be on the tractors I’ve tried. Deffo head scratching.

 

[Bury the Trash]

It's not the depth wheel affecting the balance in some way is it?

The older ploughs you could change the direction they turned over .
Not that would help necessarily

 

[jh.]

My dx needs the flow turned right down . Think its something like 12% for 16seconds

 

[Alwaysinit]

My dx needs the flow turned right down . Think its something like 12% for 16seconds

I found the opposite with mine on a maxxum 5150, needed the flow turned up full for the momentum to carry the the plough over top dead center where the change over happens. No problems on any of my other tractors.

 

[Still Farming]

Hydraulic flow.
Rev up when turning?

 

[saly123]

The plough been used for the past 5 years with no problem with flow etc...

 

[Lofty1984]

Had it on a kv plough there was dirt getting in the block if I remember right

 

[2wheels]

maybe change the hydraulic hoses, they may be breaking up inside.

 

[Still Farming]

Are you using different tractors ,flow returns ,restrictions etc??

 

[Chae1]

Does it have a valve block like a KV plough?

Sounds familiar problem. Solved it on my plough by replacing valve block

 

[Landrover]

How old of a plough is it ? Hydraulic pipes may have perished inside and bits getting stuck in valves, had this before

 

[Exfarmer]

Try changing the fittings on the end of the hoses.

 

[Sharny dubs]

I had a lemken do that. It turned out it was a bearing in the headstock failing and wasn't allowing the plough to flip over centre. Worth a look just incase

 

[Pringles]

Fairly obvious that folks don’t read posts before replying with their expert wisdom!!!

Most of the suggested “cures” @saly123 has already stated have been tried.

Our oldest CX gave us similar problems a few years ago, the cure for us was new ram seals.

 

[saly123]

Haven’t tried changing the hoses or looking at the turn over bearing or ram seals. So will try them and see if there’s any difference.
yes trieddifferent tractors on and different flow rates.

 

[bravheart]

When you say it's easier with the front furrow half way this reminded me of a second hand lemken we bought, trying to set it to the tractor we ended up turning the tru-line turnbuckle the wrong way to the point the plough wouldn't turn over tdc.
It may just be the case that the turnbuckle has been adjusted at some point and too much weight now on the ram.
Also with that plough top link holes and lift heights made a difference, probably ram seals or valve springs but maybe something else to check

 

[jh.]

When you say it's easier with the front furrow half way this reminded me of a second hand lemken we bought, trying to set it to the tractor we ended up turning the tru-line turnbuckle the wrong way to the point the plough wouldn't turn over tdc.
It may just be the case that the turnbuckle has been adjusted at some point and too much weight now on the ram.
Also with that plough top link holes and lift heights made a difference, probably ram seals or valve springs but maybe something else to check

I'm sure it was something similar with my DX. At high flows the memory ram wasn't working properly , in stead of closing in fully , then turning plough right over to other side , then opening back out it was closing and turning at same time , then if it got over centre would still be turning but also opening back out but quite often just go so far then come back down on same side . Slowed it all down thinking valve block or ram was away but been fine ever since .

 

[saly123]

Will give it ago when I can next. But it's worked on the same flow rate(100%) for the last 4 years on 2 different tractors fine. But will give it ago and see.