seedhawk hyd return line(s) - The Combine Forum

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post #1 of 12 (permalink) Old 05-18-2017, 04:33 PM Thread Starter
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seedhawk hyd return line(s)

Just bought a 2007 48' 397 Plus Seedhawk. Has 2 fans. 8960 JD tractor has 1 return line going into the back end of tractor. How much oil returns from the hydraulic shank down pressure and how much from the 2 fans? Drill has 2 return lines. I imagine I should be running 1 return line straight to the hydraulic tank on the tractor??

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post #2 of 12 (permalink) Old 05-18-2017, 05:37 PM
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The one on the fan has to go back to tank (the little seal area drain line), the one on the tool bar can return to charge pressure witch is best if possible so if you have a empty valve that can be left in float that would be perfect but it will have to be locked into float because if it goes to closed you will bend wing cylinders

At least that's how it works on the master but I can't imagine it being any different


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post #3 of 12 (permalink) Old 05-19-2017, 01:08 AM Thread Starter
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Thanks.
Anyone else? Lots of seedhawks out there. What is everyone doing?
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post #4 of 12 (permalink) Old 05-19-2017, 01:13 AM
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Run both back to the tank.
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post #5 of 12 (permalink) Old 05-19-2017, 01:55 AM
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Everyone in my area runs both back to the tank.

As a farmer, you learn quick: “You don’t get anything that you don’t work hard for”
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post #6 of 12 (permalink) Old 05-19-2017, 07:59 AM
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Back to. Tank , on my case they T together just before going into tank
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post #7 of 12 (permalink) Old 05-19-2017, 08:07 AM
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Have a 64 ft 2007 397 plus, ours has one straight back to tank and one into a flat faced coupler, I know they don't overly recommend the flat faced coupler but we have never had a problem. I think the case drain with the flat faced is for the fan circuits.
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post #8 of 12 (permalink) Old 05-20-2017, 01:23 AM Thread Starter
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Another 397 Plus question. How far is the hex shaft of the meter rollers supposed to go through the bearing on the left side of the drill?
On mine they are not even half way through! Is this normal??
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post #9 of 12 (permalink) Old 05-20-2017, 08:20 AM
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i am assuming you are talking about when you install the roller you take the inspection cover on the left side off to line it up. They don't go in very far, sounds like you have it right. 1/2" max is in the bearing.
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post #10 of 12 (permalink) Old 05-20-2017, 09:01 AM
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Quote:
Originally Posted by Quadra View Post
Have a 64 ft 2007 397 plus, ours has one straight back to tank and one into a flat faced coupler, I know they don't overly recommend the flat faced coupler but we have never had a problem. I think the case drain with the flat faced is for the fan circuits.
I might know why....the flat face coupler on mine somehow lost the lock pin and case drain hose came out destroying a 3980$ fan motor. I now put a hose clamp behind it to prevent it from uncoupling.

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