tobinator1959
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I've been looking at PTO adapters to attach my Deere #5 sickle mower to my Deere 4300. Can someone tell me what "Over Running Couplers" are used for? /forums/images/graemlins/confused.gif
Over Running Couplers?
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tobinator1959
New member
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- May 10, 2006
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I've been looking at PTO adapters to attach my Deere #5 sickle mower to my Deere 4300. Can someone tell me what "Over Running Couplers" are used for? /forums/images/graemlins/confused.gif
GeneD14
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They are put on the pto shaft so that the inertia created by an implement like a bush hog's blades spinning doesn't keep making the transmission spin when you even push in the clutch. On older tractors it actually can power the transmission enough to keep you from stopping the tractor from moving for a few minutes, causing you to drive into a fence row or tree.
Most newer tractors have an indepentant pto and do not need an over running coupler. I don't know about a JD 4300. I would ask a dealer.
Most newer tractors have an indepentant pto and do not need an over running coupler. I don't know about a JD 4300. I would ask a dealer.
GeneD14
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- Kubota B26 TLB, Allis Chalmers D17 series IV, Kubota ZG-23 Mower, Kubota ZD 1211, Kawasaki Mule 610, Stihl 361, Stihl 045 AV Super, and a Stihl 660 Ported and tuned
They are put on the pto shaft so that the inertia created by an implement like a bush hog's blades spinning doesn't keep making the transmission spin when you even push in the clutch. On older tractors it actually can power the transmission enough to keep you from stopping the tractor from moving for a few minutes, causing you to drive into a fence row or tree.
Most newer tractors have an indepentant pto and do not need an over running coupler. I don't know about a JD 4300. I would ask a dealer.
Most newer tractors have an indepentant pto and do not need an over running coupler. I don't know about a JD 4300. I would ask a dealer.
flusher
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According to Tractor Data, the JD4300 has an independent PTO and a hydrostatic transmission.
JD 4300 specs
You don't need an overrunning coupler since your tractor's PTO and wheels are driven independently. My Kubota B7510HST has the same setup.
What you might need is a slip clutch if your sickle mower doesn't have a shear pin somewhere in its drive mechanism to protect the PTO transmission if your implement stalls.
I use a slip clutch for my pre-owned Yanmar RS1200 rototiller since it doesn't have a shear pin. The slip clutch fits between the implement and the end of the PTO shaft. Tractor Supply sells them for ~$100.
JD 4300 specs
You don't need an overrunning coupler since your tractor's PTO and wheels are driven independently. My Kubota B7510HST has the same setup.
What you might need is a slip clutch if your sickle mower doesn't have a shear pin somewhere in its drive mechanism to protect the PTO transmission if your implement stalls.
I use a slip clutch for my pre-owned Yanmar RS1200 rototiller since it doesn't have a shear pin. The slip clutch fits between the implement and the end of the PTO shaft. Tractor Supply sells them for ~$100.
flusher
Super Member
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- Getting old. Sold the ranch. Sold the tractors. Moved back to the city.
According to Tractor Data, the JD4300 has an independent PTO and a hydrostatic transmission.
JD 4300 specs
You don't need an overrunning coupler since your tractor's PTO and wheels are driven independently. My Kubota B7510HST has the same setup.
What you might need is a slip clutch if your sickle mower doesn't have a shear pin somewhere in its drive mechanism to protect the PTO transmission if your implement stalls.
I use a slip clutch for my pre-owned Yanmar RS1200 rototiller since it doesn't have a shear pin. The slip clutch fits between the implement and the end of the PTO shaft. Tractor Supply sells them for ~$100.
JD 4300 specs
You don't need an overrunning coupler since your tractor's PTO and wheels are driven independently. My Kubota B7510HST has the same setup.
What you might need is a slip clutch if your sickle mower doesn't have a shear pin somewhere in its drive mechanism to protect the PTO transmission if your implement stalls.
I use a slip clutch for my pre-owned Yanmar RS1200 rototiller since it doesn't have a shear pin. The slip clutch fits between the implement and the end of the PTO shaft. Tractor Supply sells them for ~$100.
HayDR
Veteran Member, Approved Advertiser
Most of the newer tractors have a PTO brake that engages when the tractor is turned off or stalls. If you are running an implement and the tractor stalls and the PTO brake engages then in this situation you will need an over-run clutch to prevent damage to an implement or PTO system.
HayDR
Veteran Member, Approved Advertiser
Most of the newer tractors have a PTO brake that engages when the tractor is turned off or stalls. If you are running an implement and the tractor stalls and the PTO brake engages then in this situation you will need an over-run clutch to prevent damage to an implement or PTO system.
I installed one on my Bush Hog to save my PTO clutch and brake. I had to install it on the Bush Hog itself because my Kubota does not have the hole in the PTO output shaft that is required to hold the over-run clutch on. It works great when I disengage the PTO the only thing that still turns is the Bush Hog gearbox and blades
I installed one on my Bush Hog to save my PTO clutch and brake. I had to install it on the Bush Hog itself because my Kubota does not have the hole in the PTO output shaft that is required to hold the over-run clutch on. It works great when I disengage the PTO the only thing that still turns is the Bush Hog gearbox and blades
