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Howdy,
For years I have always thought I was missing something. i.e. from looking at the back of the tractor on my 354 I see there must be a implement pitch control because there is what looks like a piston that connects my top link. After looking at the parts diagram below I see that it is not so. But it does raise a bunch of questions as to why this exists. (It does not exist like this on my 284)
- What is the purpose of this spring on the top link? I have an LW6 attached and I never seen enough pull to make this move.
- If this spring is important here why isn't it important enough to ha ve on my 254?
- There are 2 holes to attach the top link too (top, lower). I choose the upper one for lack of any other knowledge. What should I have the top link tied to for an LW6 attached?
It all seems sort of flawed. unless that spring is allowed to have some up and down movement it which it does not appear to, you can't pivot on the lower bracket pin else there will be some torque put on the upper spring shaft.
Thanks in advance!
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The 354 has what's called Draft Control. The idea is that when an implement attached to the 3-point hitch encounters resistance the lift cylinder automatically lifts. It's for plowing, what's supposed to happen is if you hit a rock the plow lifts. I've never found it particularly useful but I don't plow.
The way that it works is that when the top link is attached to the lower hole, the end of the top link can move against the spring when it encounters resistance. When the top link is attached to the upper hole the end can't move and draft control is disabled. There is a small metal rod that runs from the top link attachment to the lift control handle, along the right side (facing forward) of the lift box. When the top link attachment moves that rod moves, and it has the same effect as raising the lift handle.
Early lift boxes had two handles, one to control the height of the lift and the other to control the amount of draft control. Newer lift boxes have just one handle. Draft control is only on when the lift is all the way down, which occurs when the handle is about half way down. Pushing the handle further down increases the amount of draft control.
Hope this helps.
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