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 | George Scott III
Join Date: Posts: 1 
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2000-10-30 21036
I use my TC29 exclusively for mowing with a Woods Finish mower.Just did do my 50hr. lube and filter change.I noticed while cutting yesterday the mower wheels were ripping the lawn up in places due to the implement not dropping completly down on the ground.The 3-point does not seem to be dropping as much as it originaly did with the position control lever completely forward-lacking good 2-4 inches.What kind of adjustment do I make to solve this problem?Thanx for you helpG. Scott
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley 
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2000-10-31 21041
Most 3ph's have position control. The hitch stays at a position determined by the lever. In position control, the hitch will neither raise nor lower. If the lever is raised so does the hitch, and it will stay at the new position. If an implement is lowered until it rests on the ground, and then the lever is pushed further down, the hitch is in float position. In float position, the hitch can raise and lower to an extent, so an implement can follow the contour of the ground. The more the lever is pushed down, the more an implement can float. Position control is needed for operations like plowing to keep the plow at the same depth. Float is used for operations like mowing (with 4 a wheeled mower) so the mower can move up and down with the ground. Otherwise, the dips aren't cut, and the bumps are scalped. The trouble with position control on hilly ground is that when the front wheels go up a hill, the hitch goes down. I suspect what's happening is that the hitch is in position control on level ground, and then the mower digs into the ground when the tractor starts up a hill. It's a common problem. People that use 1 or 2 wheeled cutters (where the front of the cutter height is maintained by the 3ph) learn to ride the 3ph lever to keep the same cutter level. ....
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| George Scott III
Join Date: Posts: 1
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2000-11-01 21121
Tom,Thanks for your response.I know and understand every thing you are saying about position control having worked with an 8N the last 10 yrs.The finish mower is not scalping the grass the front wheels are ripping the grass because the wheels in front are just barely touching the ground and have a tendency to hit the turf on slightly uneven ground.This just started thats why I can't figure out why I lost a few inches on the fully down position.Any more thoughts? Thanx G.Scott ....
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley
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2000-11-02 21139
Yeah, I was pretty basic. Hope it helps somebody else though. I'm assuming that the mower is operated with the 3ph in float position, but I don't know if it is mounted with a rigid top link. I also don't know if the front wheels are down when the tractor is sitting on level ground. I imagine that the 3ph arms lower to the ground when no implement is attached. However, I check to make sure the hitch lowers when the mower is attached. I guess it's possible (especially if the 3ph arms are spread wide to mount the mover) for the arm sockets to jam, or something to bind, which would prevent the 3ph from lowering. I’d make sure the mower is free to rotate on the 3ph arms.
A couple of other thoughts, but also pretty basic. What is described could happen if the flow control valve is set for very slow. The hitch wouldn't come down fast enough when the tractor crested a hill. If a rigid top link is used, a change in leveling could do what is described. I could do something like that if I put the top link back in a different position on the bracket.
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| Bird Senter
Join Date: Jun 1999 Posts: 962 
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2000-11-02 21143
I wasn't sure I understood the problem, much less know a solution, but now after the other discussion, it does sound as if the flow control valve (or "3 point hitch lowering speed knob" as Kubota calls it) needs to be opened up a bit. ....
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| Jerome
Join Date: Oct 2008 Posts: 19 Quebec
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2000-11-02 21147
George, All you have to do is open the three point flow valve somemore, it's the valve located right below the seat, with the rabbit and the turtle on the knob. ....
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| mbjacobs
Join Date: Posts: 1
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2000-11-02 21153
George, have you checked to be sure no one has moved the adjustable stop on the position control lever? ....
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