Here is the original color coded one. I try and stay right at the top of the green zone and I believe there is something in the book about not running in the yellow zone without added weights on the back cross bar.

Also have factory JD markers on mine with the sequencing valve. Push lever forward and one marker goes down. Pull back and it raises and switches valve so next time the opposite one goes down. Can also put both markers down at the same time. Put one down then quickly pull lever back for a split second which causes the sequence valve to change. Push the lever forward and the other marker drops. Then when you pull the lever back both markers will raise together. Nice feature if you need to lay out a straight pass with marks on both sides or for drilling  a waterway where you drive in the center and want an additional pass on each side.

Sounds like a sequencing valve issue if they are both going down unless you are changing direction of lever while putting first one down. Usually run lever in float condition once on the ground.

Here is a picture of my sequencing valve. Lines on top and bottom got to tractor but in my case they go to a push pull splitter valve so I can run markers and drill fill (but only one at a time) off 1 tractor remote. Without ever having to couple and uncouple dirty hoses in the field.

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P1010010.JPG (94KB - 275 downloads)

P5110088.JPG (165KB - 271 downloads)

P5110090.JPG (158KB - 240 downloads)

P5110087.JPG (138KB - 267 downloads)