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Anybody having problems with feeder house slip clutches on 09 combines have gone though 2 of them now and still having problems with it slipping and dealer added springs to the last one.
Also having problems with reel speed and header height on new 635D anybody else having problems with these headers.
 

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Yes, they blow. We hated them all year, ours slip clutches came with missing springs & packed full of grease. Once they got cleaned out and put back to together properly . . . well they still sucked. Our dealer tried everything, even putting new slip clutches for a 2008 model, still didn't help. The new 4x4 feederhouse must take more power to turn therefore needing a beefier slip clutch. You will probably have to suffer through it, my dealer heard there is an update coming for next year.
 

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We've been breaking the belt tensioner on the auger side of the feeder house. The one that drives the feed drum on the header. We are on our third one now, seems like every 70hrs of use they just self destruct.
 

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They seem to take alot of abuse from all the clutch slippage, we broke one of ours too, just welded it stronger and haven't broken it since. One of the things that I find interesting is we have 250 sep hours and the chain on the other side is totally shot. Seems like the system cannot take much abuse.
 

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So does your dealer tell you that your the only guy having trouble with the feeder house slip clutch or do they agree there is a problem, I'm getting zero dealer support with the problem. And all the 08's around here have had almost no trouble with anything.
 

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No my dealer acknowledges there is a problem and have tried to fix it. Their solution is "trade it off in 2010 it will be better"
 

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Our 9870 had its slip clutch rebuilt with heavier , and more springs.... seems to have worked.

Feeder chain jumps on the sprockets... detach said to over tighten it... the indicators are not close to being even... when tightened past the washer the right side chain was very tight and the left side still sagging.

Allan Wiens... JDJ (John Deere Junk) harvest specialist said we need to remove the half links and run the chains very tight.

Our 635 D is a bigger disaster.

This 09 production is demoralizing!!.... Bill
 

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I've noticed if I don't run the chain on the right side real tight (tighter than I have on previous model years) it will get to slapping the poly glide and mine has actually bent downward. I assume it gets loose when the feeder house tension changes. Seemed to be worse with beans and haven't noticed it much on corn. This is on a 9670.
 

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Discussion Starter #12
Chain only stretched 1/8 of an inch in more then 200 rotor hours thats not the problem, the clutch is just to light to run that big feeder house, can't even cut 70 bu wheat with 35 ft head without clutch slipping.
 

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Deere 401.... BALONEY!

Our slip clutch was slipping from the get go... our feeder chain had jumped on one side and when repositioned and retightened we had almost no stretch... and the bolts were not... and had not... touched the end of the slots!

Perhaps the springs are not strong enough... Bill
 

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This is what I heard the problem is with the 09 feederhousees. I will try and explain this as best I can.
Deere came out with the new 4x4 feederhouse with a spring loaded self tensioning system. As you all know, new feederchains will stretch in their first 50 -100 hours of use and the chains are stretching beyond what the chain tensioner's range. It will seem like the slip clutch is failing but it is most likely the feederchain is way too loose. So, you need to take out a half link form the feederchain and this will put the chain tensioner back within range and .....problem solved - usually.
 

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If you look closely at this system you will see that the slot in which the mechanism (tension bolt, for lack of a better term) moves is not actually the range of the tensioner. If you take this apart you will see that the tension system will run out of play before the bolt reaches the end of the slot.

We had a machine giving us problems and the dealership did just what deere401 said....no more issues.

worked for us
 

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We used a pry bar and could move the drum to over tighten the chain ... we had the header off and observed the uneven chain tensioning from the front.

It obviously was not bottoming out.... Bill
 

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You can get proper tension out of the chain by removing as many links as needed. But think about how the tensioning works, really think about it and consider the forces that keep it tight can easily be reversed when the feeder house is reversed. Maybe not all the way loose but very often lose enough to skip a cog. Thats what as been happening to us. And with the $hitty clutches in these things you get very familiar with pulling back on the header switch.
 

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I had our chain jump twice with no reversing...... in flax though...

Still thinking the spring is not strong enough...

Because we never had a problem with the older style feeder houses....

And our crop was not heavier this year...

Our 635 D is 1 ft narrower than our 936D's...

But we had to cut lower and slower because...

The 635D's do not work well above 5-6 inches above ground...

9870 was normally running about 2260 RPM....

The 08 9770/936D was usually pulling down the engine much more...

And was cutting more bushels/acres per hour.... Bill
 

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To Bill
re: Boloney:

Whatever man, I am just givin my 2 cents. I know this solved the prob on a couple of units. Will it solve everyone's problem.....maybe not. But try it before you say "B.S."
 

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deere401....

Baloney... is the response I have because of our experience.

Your chain stretch info may have solved the issue for some... but we had only about 30 separator hours on our 9870 when our chain first jumped.

We removed the header... loosened the tightener bolts etc. and repositioned the chain.

The drum adjustment was not bottomed out... the chain tightener indicators were not indicative of the chain tension.

Ergo, we tightened the chain evenly... checked for movement.. both ways... as I thought the chain had stretched.... but it had stretched very little.

One indicator showed much more tightness than the other... but we went by our frontal inspection.

We have to run this chain extremely tight.

I like the idea of auto... spring... tightening, but these springs seem far to weak to perform like the old eye bolt system.

BTW... the feeder house slip clutch rebuilds are common at our dealership... and have been for years.

If my prior post raised you ire, then don't buy an 09 9870... LOL... Bill
 
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