Power cylinder reverser!!! Add on option on JD 6620 LOL

JD Seller

Well-known Member
Well neighbor found out why you wait until a killing frost to cut weedy soybeans. He started raising soybeans just a few years ago. So he is spoiled by RR and other weed killers generally working well. This year he had water hemp go crazy in his soybeans. He has water hemp plants 7 foot tall in places. Still green as a gourd. Well he tried his luck right at dark in a low spot to help matter even more. Mower conditioner rather than a combine.

Plugged the feeder house first. Well he used the feeder house reverser to back it out but then, had to SAVE those few soybeans, ran the plug back through the combine. This time he plugged the cylinder. So rather than open the concave up and dig out the slug he decided to "POWER" the plug through with the concave open all the way. This time he plugged the cylinder so tight he sheared the shear bolt on the two speed cylinder drive. With the sheared bolt the rest of the combine would run without any noise. He broke his cylinder speed belt last fall and just guesses at the speed. So he did not realize the cylinder was still plugged full. He thought he got the slug to go through. So into to beans he goes. This time he plugs the feeder house so tight it will not even reverse out. THEN he calls me to come and "FIX" the combine. LOL

Well the feeder house is so plugged with tall green water hemp plants that I can not pull it out from under the paddle (sidehill combine, Titan II) and the front drum. So we had to take the header off and then take the paddle apart to get the front of the feeder house cleared. Was able to dig the back out by removing all the covers/doors. Had to unbolt the rock trap an drop it and the lower feeder house hinge to get the front of the cylinder clear. Then crawled down the straw walkers and dug the over beater out. Then tried to turn the cylinder back wards. Remember he open the concave ALL the way. You should NEVER do this. Open it all the way and then close it 5 turns or so. That way IF the plug does not go through you can back the concave off so you can pull/dig out the plug easier. I could not turn the cylinder backwards with my port-a-power (picture) So I had to cut the concave adjustment pins to drop the concave some to loosen the plug up. Even with doing that we could barely get the cylinder to turn backwards with a 10 ton port-a-power. TIGHT!!!! We got a pickup load of "STUFF" out of the combine.

That was Thursday. night. It took me most of the morning Friday to get his combine back to being operational. I told him IF he did that trick again he was on his own in getting it unplugged!!!! I meant every word too. My arms/wrists/shoulder all are killing me yet to day. Pulling some of those LARGE/long water hemp plants was all I could pull.


Picture is of the port-a-power setting on the final drive pushing back wards on the cylinder drive sprocket.
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Never thought of a porta-power. I have used a 10' arbor bolt from a disc and hung on the end to get my JI Case 1660 unplugged. Have heard of guys hooking a chain on the cylinder and pulling with a pickup.
 
(quoted from post at 22:45:19 10/21/17) As an aside...brother-in-law said the big hydro pump on their 9600 went out...$10000 to replace cooler, pump and hydro motor on the trans. Is that about right??

Wait 'til the "transmission" that drives the hydro pump, and contains the wet machine clutch fails and ask those $$$!
 
I like the porta power unplugger.
The massey had the rotatable concave adjustment shaft to clear the cylinder easier. Deere should have copied that as well.

For the pump and motor you can rebuilt them for 5k at an hydraulic shop.
 
fdt860 JD has the same type of concave adjustment shaft. The trouble here is the plug went around the cylinder and back over the top. Then it wedged between the top of the cylinder and the steel body of the combine. So there is not way to "loosen" the pressure.
 
Do that at work on 9600 JD combine. Reverse cylinder by pulling with pickup. Use same method to free a stuck feed accelerator on MF 8570 rotary as well. Get combines unplugged in under an hour.
 

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