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I had a single straw walker break apart w/ only 10 acres of corn left to finish the '08 harvest. Had a neighbor come over to finish before the rain settled in for the week.

The combine has 4400 hrs, I've never replaced a walker before. I'd appreciate any advice or short cuts learned by you guys. Can I replace just one, should they all be replaced? I'm assuming that changing all wood block brgs. is a must?

The combine ran great over 500 acres of corn and soybeans after I figured out my variable speed cyl. drive problems. So, looking ahead to next year, I want to get it back in shape to go again. Trading combines is tempting, but I don't feel now is the time to go into more debt. I see a few years of tough times ahead.

Thanks for any advice or tricks on replacing the walkers.

SilverDollar
 

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Pull off straw chopper and take out the panel that forms the rear tin of combine. You should only need to replace the one walker, however inspect neighboring walkers , shaft for damage/wear. Try any salvage place , with that many hours new isnt too practical. New boxings on the one unless you have ALOT of play in the old ones, which could mean a new crank due to wear as stated above in addition to the boxings
 

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We had to replace one on a 8820 T2 after the inspection revealed it to be broken. The JD mech. caught it before it failed completely.
A few years later we noticed one walker had a crack in it so we removed all of them and had a small reinforcement plate welded onto each one. It's hard to describe what we did but it was recommended by a former JD mech. Be sure to mark the walkers so they stay in the same order as they came out.
It's best to park the combine on a incline so the front is higher than the rear if you can. We removed the top and bottom sieves and it makes it easier to lay in there to work if it is more level.
 

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I repaired one walker on my 7720 T2 last year and put new blocks in it. What I found out from the main JD combine mechanic from Deere Trail in Mcpherson ks was to shim the walkers. After I ran it a little and heard a noise...it was the blocks squeeling a little. He told me that every time he puts in a new bearing (set of blocks) he cuts a cardboard spacer ( like out of a cereal box) and puts the same number of shims in the front & rear ( same block I'm talking about) untill there is just a little play sideways and up & down. I talked to several other guys that never heard of shimming the blocks before but if I hadn't done this, I would have had big problems so you might want to check that out.
 

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This is an old thread to dredge up, but is there a panel I am not seeing on the back of my 7720 to remove a broken straw walker? Not real excited about taking a sawz all and cutting my own access panel to remove it.

Appreciate the help, got another 400 acres of corn to finish.
 

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We replaced the walkers in our 8820 a few years back. One of the panels comes out. I don't remember if its the bottom one with the SMV sign or the top with the Deere sign. But no cutting was performed. One of those panels will come out without cutting it.
 

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Another great thing about those CTS combines (access door on rear). We had a 9500 that blew a walker, after repaired we put a rear door off a CTS on it.
 

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you dont need a sawz all. the rear of the combine comes off, unbolt the walker and slide it out the back.
 
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