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John Deere Tractors Discussion Board

Re: 4020 Clutch

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Posted by G/MAN on December 01, 2004 at 07:32:03 from (

In Reply to: 4020 Clutch posted by Mark Westphal on December 01, 2004 at 06:56:21:

Get yourself a service manual first and foremost. The clutches are pretty simple. The only special tools that are required besides splitting stands are the gauge for adjusting the fingers and a pilot tool to line up the traction clutch disk. You'd be well advised to replace the rear main seal while you're there, and inspect the flywheel ring gear, although at those low hours it should be okay. I'd also replace the seal on the trans input shaft. With any luck the rear seal retainer will come off without taking the pan gasket with it, but be forewarned that it could tear the pan gasket. At that point you can either piece in a new chunk using a new pan gasket, or remove the pan and replace the entire thing. I've done it both ways with good luck. Also inspect the traction clutch throwout bearing and the PTO engage bearings. And replace the pilot bearing in the crankshaft And normally we replace all the fingers, pins, operating bolts and nuts if they show any wear at all. The springs also aren't too expensive, so if you really want it back to factory specs, replace those too. It just depends on how far you want to go with it. And one more thing - set up and adjust the clutch with the flywheel on a a bench, then remove the clutch, install the flywheel on the crank and reinstall the clutch. It's a little easier that way than doing the adjustment with the clutch installed for good.

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