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JD Model M Clutch

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Warren Farmer

10-22-2000 12:04:04




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My 1947 M clutch releases at the top of the pedal travel, but "jerks" into motion. Is there any way to adjust this out? Also, I've heard of JD manufacturing a different clutch disc that provided more emgagement cushion. Any ideas?




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clooney

10-22-2000 13:35:32




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 Re: JD Model M Clutch in reply to Warren Farmer, 10-22-2000 12:04:04  
Warren, there are many things that can cause your problem but adjustment probably isn't one of them. You should have about 1" of free play in the clutch pedal (measured at the top of the pedal). Rust on the flywheel or pressure plate, the pressure plate rusted to the splines on the drive shaft, broken, worn or warped clutch fork (a high probability on an M), warped or broken fingers on the pressure plate or the clutch facing broken or missing on the disk, worn or missing pilot bearing, just to mention a few are all possible on you M. I am not aware of a soft engagement clutch being offered for an M but there were a couple of different clutch disks offered with & without center torsional springs for the 40-420-430 that might fit your M. With a new and proper operating clutch system on your M the clutch should engage quite smoothly. If your tractor has been sitting for a long time you might want to put it in high gear & slip the clutch a few times to burn the moisture & rust off the parts then see if it gets better.

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RonMC

10-23-2000 00:01:11




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 Re: Re: JD Model M Clutch in reply to clooney, 10-22-2000 13:35:32  
Warren, if it hasn't been apart, it's quite probably some contamination - rust, etc, as Clooney said. If it HAS been apart, did you adjust the fingers on the pressure plate to correct height before assembly ? Deere makes a gauge for this, I was able to borrow one for mine, but someone on here will probably have the measurement to make your own. Good luck, Ron



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