7000 clutch

Anonymous-0

Well-known Member
I bought this planter two years ago. It seems to have been maintained well. My issue is in the clutch. It will click and jump a little when I drive with it up. The two cams that spread the clutch are worn, but the main drive cams have been replaced. They are not rounded. My question is the strap attached to one of the cams has a slot and is bolted to allow movement. Is this right? If I slide the metal strap and tighten the bolt it will allow the clutch to fully disengage.
 
IIRC that slotted arm is held with a round-headed pin with cotter key, not a bolt. You might have more wear in the cams than you think. IIRC I added machine washers next to the spring that pushes on the cam, and bought some time. But replaced with new later on both the 8 row and 6 row 7000. Grinding sharper cogs did not work. Granted, no fun repairing. On the 8 row I cut the shaft and spliced it back together rather than pull the whole thing out. Just split a pipe and drilled holes to make the coupler to rejoin.
 
The two cams that spread the drive clutch are worn. They wear more than you think. What I have done is to find a large washer that has the hole the size of the cam diameters. That is about 2 inches. Then I split the washer with a hack saw. I put it behind the cams. This takes up some of the wear. I then spot weld it back together. Sometimes you can find the washers that hinge and have the tang you hammer shut to hold them. I can't find a picture but maybe some of the other guys know what I mean.
 
Yeah one of the cams is held by a pin and cotter pin. The other is held by a 6 to 8 inch strap with bolts. From the front it is on the left side of the clutch. The strap has a slotted hole. Can i tighten the bolts and hold it ridged?
 
(quoted from post at 12:49:11 04/30/13) Yeah one of the cams is held by a pin and cotter pin. The other is held by a 6 to 8 inch strap with bolts. From the front it is on the left side of the clutch. The strap has a slotted hole. Can i tighten the bolts and hold it ridged?

If you bolt it ridged it will just break the arm. The cross shaft moves around some. Like we told you the backs of the cams are worn. They need to be replaced or shimmed to fill the cap better. If you do not do it then the gears will hit while transporting and you will be replacing both gears as they will shear the teeth off because of the engaging while in transport.

I just remembered the name of the washers I was thinking about. They are called quick repair washers. Here is a picture.

17177.jpg


You just put one behind the current cams and bend the tab over. This will last a long time.

You do not want to have to repair this while in the middle of planting season. You have to slide the drive shaft half way across the planter in the bearing. This is fun when they are new and full of paint and even more fun when they are older and full of rust. It can take half a day real easy. If you do have it apart you want to replace the drive gears and cams just because of the labor involved to get to them.
 
Thanks, I will try the washer for this year and replace the whole clutch this winter. Where can I find those washers?
 
The washers JD Seller refers to are found at dealers generic displays, hardware stores, welding shops around here.
 

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