FD140 tilt issues - Page 3 - The Combine Forum
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post #21 of 42 (permalink) Old 08-01-2018, 12:38 AM Thread Starter
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Originally Posted by Don Boles View Post
Oh, thatís different, while I have a slight right tilt reading (itís barely visible on the feeder faceplate) cutting is level.
Are you running gauge wheels at same spring compression on both sides?
Demoed a FD1 but only cut on the ground, I do not know yet if you have to set it like an FD75, it doesnít look any different on an FD1.
When you learn the cure let us know please!
Yes, I have both of the gauge wheels in the highest slot, other than storage. I will let you all know what they get figured out.

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post #22 of 42 (permalink) Old 08-01-2018, 12:42 AM Thread Starter
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If the right side of the Macdon headers is heavier, why does Macdon recommend backing off springs 2 turns on the right side?
Would you not turn the right springs clockwise and tighten 2 turns to help lift the heavier side of the header.

Am I thinking about this wrong?
Yes, that makes sense to me. In the book they say to back it off if you have a double knife drive on the 40 or 45'. But the gauge wheels are much heavier on the right. I would think lightening the right side of the header by tightening the right float springs would make more sense also...

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post #23 of 42 (permalink) Old 08-01-2018, 05:49 AM
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Backing off the two turns after even float has something to do with operation in flex mode.
Seems a fully equipped 40’ and 45’ tends to slightly “kink” up at the flex joint on the right side hence the back off instructions.
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post #24 of 42 (permalink) Old 08-01-2018, 07:11 AM Thread Starter
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Backing off the two turns after even float has something to do with operation in flex mode.
Seems a fully equipped 40í and 45í tends to slightly ďkinkĒ up at the flex joint on the right side hence the back off instructions.
Gotcha, thanks for the info!
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post #25 of 42 (permalink) Old 08-01-2018, 07:50 AM
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Some great info on here. Hooked up my FD145's yesterday and took them for a spin, they have the Macdon headsight kit from factory (not sure if it's called headsight from Macdon).
Having issues with the Macdon header height sensor reading at 97 out of 100 (very top of the scale) in auto contour mode in the combine monitor with the header in flex. Setting the Macdon header at about 1.5 on it's scale. This is on a Lexion 780 combine.

Would like that 97 out of 100 in the combine monitor down a bit lower in the scale. It almost seemed like the Macdon header height sensor was not making the combine auto contour react as I was moving the Macdon guage by hand and the reading in the combine would not change from the 97 on the combine readout.

Reading Jeff-I-Cil suggestion of blocking the combine feederhouse faceplate up higher when doing the calibrations seems like a great idea. Will try it this morning.

One of the headers was running at 40% on the feederhouse tilt scale so that will have to be addressed as well.
The other one was around 52%, I can live with that one.
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Last edited by drylandfarmer; 08-01-2018 at 07:59 AM.
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post #26 of 42 (permalink) Old 08-01-2018, 08:20 AM
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Dryland: Moving the indicator in the gauge will not change the reading of the height when the lateral tilt sensor package is installed; they electrically replace the single sensor in that gauge.
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post #27 of 42 (permalink) Old 08-01-2018, 08:47 AM
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Dryland: Moving the indicator in the gauge will not change the reading of the height when the lateral tilt sensor package is installed; they electrically replace the single sensor in that gauge.
OK good to know. Thanks.
When calibrating should the header be locked in rigid mode or flex? Or does it matter?
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post #28 of 42 (permalink) Old 08-01-2018, 05:33 PM
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The Float optimizer must be unlocked "in Flex" to calibrate. If you lock the head rigid, the sensors cannot travel to calibrate. IDK if locking the wings would have any effect. The best way is to raise the gauge wheels out of the way, unlock everything, and calibrate on a flat level surface. I think it would also be possible to calibrate with the wings locked and wheels down, it would just require more care and knowing what you are doing.

What you are calibrating is the "travel" in the float optimizer frame. So the better job you do keeping everything level during Cal, and only letting the float optimizer travel in the normal operating range (see blocking comment), the better the control system is going to work in the combine.

The other major problem we see is trying to Cal with the Float springs so tight the head "Floats up" when you raise it. This completely confuses the combine cal function. You must have the head hanging all the way down on the float optimizer when the head is raised all the way to the top. If it floats up or even bounces up pretty good, you are going to have to loosen the springs during CAL (or add weight. Sometimes running the reel clear forward is enough!)

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post #29 of 42 (permalink) Old 08-02-2018, 02:16 AM
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Thanks Jeff-C-IL. Blocking the feederhouse worked great. Have the combine monitor readout at 75 now when reading just under 2 on the Macdon.
Everything working like it should.
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post #30 of 42 (permalink) Old 08-02-2018, 06:12 AM
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Thanks Jeff-C-IL. Blocking the feederhouse worked great. Have the combine monitor readout at 75 now when reading just under 2 on the Macdon.
Everything working like it should.
You will enjoy what lateral control does in the field.
Never thought there would be much advantage to that but it is the icing on the cake.
Not sure how rolly your fields are but there is no need to have lateral control speed set to to anything but the fastest, +50 on CAC settings.

Also, set record stop height as low as possible and set feeder auto lift 5 higher. That way auto drop rate can be set higher to a smooth ground landing, if lifting unnecessarily high it has the distance to pick up speed and won’t be as smooth.

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Last edited by Don Boles; 08-02-2018 at 11:45 AM.
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