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draft control

G

Glenn D

Member
I came across this video that shows how draft control should work. these look like fully restored machines. should my 9 and 2N act like this too? and what happens when you have position control? does the implement then resist moving so if you tried to lift it like that the tractor would allow more down force?

https://www.youtube.com/watch?feature=player_embedded&v=uvtFPwNPgAE
 
(quoted from post at 10:16:46 06/14/13) I came across this video that shows how draft control should work. these look like fully restored machines. should my 9 and 2N act like this too? and what happens when you have position control? does the implement then resist moving so if you tried to lift it like that the tractor would allow more down force?

https://www.youtube.com/watch?feature=player_embedded&v=uvtFPwNPgAE
Click to expand...
"what happens when you have position control? does the implement then resist moving so if you tried to lift it like that the tractor would allow more down force? " Forget,"downforce" on any "N" tractor. The lift arms & links will always be free to be lifted by hand force, unless at top limit of lift.
In video the man isn't lifting the 200-300# plows, rather he is lifting just enough to put forward pressure on top link, which pushed draft control plunger into control linkage enough to open intake to pump, thus resulting in lift.
 
He isn't really showing how it fully works because he isn't
compressing the draft control spring which will cause the plow
to lift. Position control is just what it says. It tries to keep the
arms at whatever position the operator sets the control lever
to. If you want to see a good video of how draft control works
there is a video that is part of the Ferguson story where Mike
Thorne has one of the cutaway models that Ferguson sent out
to schools and such for training purposes. You can see inside
of it while it is running. It may be on YouTube also.
 
(quoted from post at 10:35:00 06/14/13) He isn't really showing how it fully works because he isn't
compressing the draft control spring which will cause the plow
to lift. Position control is just what it says. It tries to keep the
arms at whatever position the operator sets the control lever
to. If you want to see a good video of how draft control works
there is a video that is part of the Ferguson story where Mike
Thorne has one of the cutaway models that Ferguson sent out
to schools and such for training purposes. You can see inside
of it while it is running. It may be on YouTube also.
Click to expand...

"He isn't really showing how it fully works because he isn't
compressing the draft control spring which will cause the plow
to lift." I contend that such is exactly what he is doing. Do you think the tractor running has no part in the one hand 'lifting' of that plow?
http://www.fofh.co.uk/tech/draught.htm
 
He must be running his draft control spring and plunger a little
loose if he can push his plunger in just by picking the plow up.
I tried doing it last night with my TO-20 and the lift on it is
adjusted to the book using a two bottom plow and it wouldn't
do it. I could pick it up some but it wasn't compressing the draft
spring.
 
(quoted from post at 14:16:59 06/15/13) He must be running his draft control spring and plunger a little
loose if he can push his plunger in just by picking the plow up.
I tried doing it last night with my TO-20 and the lift on it is
adjusted to the book using a two bottom plow and it wouldn't
do it. I could pick it up some but it wasn't compressing the draft
spring.
Click to expand...
id you do your experiment with your touch control lever set just on the verge of lifting? In that position, even a slight movement of plunger will initiate lift, but if lever all the way down, it would require much movement of plunger to initiate lift.
 
I thought about trying it in the neutral position because I
wondered if that is what he was doing. I just knew that if you
have it below neutral where you would plow that the spring
doesn't compress that easily.
 
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