JD M PTO/RPM?

fpappal · May 9, 2019

I am going to try a 5ft finish mower on my 1951 M. Basically just an excuse to to use it once and a while instead of looking at it sit in the barn. The finish mower is designed to be run at 540 RPM. At what throttle position will the M give me that RPM at the PTO? Full throttle? 3/4 throttle?

Thanks.

lfnel · May 9, 2019

Full throttle will be close enough.

James Howell · May 9, 2019

"[b:654c4848f0][i:654c4848f0]At what throttle position will the M give me that RPM at the PTO?[/i:654c4848f0][/b:654c4848f0]"

You might consider [i:654c4848f0]experimenting[/i:654c4848f0] with gradual throttle increases in second gear.

<iframe width="560" height="315" src="https://www.youtube.com/embed/iTZ_XaSVtfI" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Hope this helps.

fpappal · May 10, 2019

Do you use a PTO slip clutch? Thanks for the video.

dieselade · May 10, 2019

i did not like using the M on the finish mower. first gear too slow,,,,second is too fast. now a 430 with five speed is ok.

Resting Relics 1 · May 10, 2019

Hey,
Also, I would recommend an overrunning clutch if possible. That way when you push in the clutch to stop, the mower wont push you along. Good Luck!
John

James Howell · May 10, 2019

No.

To my knowledge the 6ft finishing mower never "[i:654c4848f0]pushed[/i:654c4848f0]" the tractor when the clutch was engaged.

Glad you enjoyed the video.

Hope you enjoy your 51M as much as we have enjoyed ours.

James Howell · May 10, 2019

Should have been 5ft finishing mower.

The ATH 720 was heavy and sometimes when raised would also raise the front end.

Sorry about that.

JD M PTO/RPM?

fpappal

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lfnel

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James Howell

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fpappal

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dieselade

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Resting Relics 1

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James Howell

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James Howell

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