jd rotary mower clutch stuck

Pknapp · Mar 9, 2013

Bought a JD 509 cutter and the manual says to loosen
the clutch adjusting nut and free up the clutch. I
loosend the nut but the clutch plates are rusted
fast. Any ideas on freeing the plates up?

Tx Jim · Mar 9, 2013

Tap the clutch plates with a hammer or try mowing with not tension on the Bellville washers.

Pknapp · Mar 9, 2013

Tried tapping on them but they are rusted solid

Tx Jim · Mar 9, 2013

Have you tried soaking clutch in your favorite penetrating oil?

Frankmn · Mar 9, 2013

Use it with the nut loosened up. They will break free and you will wish they were locked up again because you will be buying parts.

BushogPapa · Mar 9, 2013

Now is a good time to see...
With the pressure off the plates, get them loose...use an air-hammer or just a Ball-Pien and jar it until they come loose..
Might even be able to drive a sharp Putty knife between the plate and the friction lining to get it loose..
If the friction plates are bad--now would be the time to replace them.
If they are still OK, I would leave the pressure light and let it slip a while and shine the surfaces..
A little graghite won't hurt either..
Ron..

John A. · Mar 9, 2013

Pknapp, After you loosen the nut run the shredder in tall heavy weeds that will usually break it loose. But since it is already not budging you may have to Disassemble the Slip-Clutch unit and free it all up, But Chances-Are you will destroy the fiber disk and need new ones then!
*****
Note
*****
next Fall, Loosen the nut 2 to 4 turns before you put it up for the Winter. Also get and old Wash tub and turn it upside down over the Gearbox for the winter season. Come spring service the shredder and push it just hard enough to slip the clutch a little then tighten back the 2 to 6 turns you took off the previous fall and you are good to go for the summer! Simple slip-clutch maintence! Hope this helps!
Later,
John A.
Works on any shredder!

jd rotary mower clutch stuck

Pknapp

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Tx Jim

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Pknapp

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Tx Jim

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Frankmn

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BushogPapa

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John A.

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