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Ford Tractors Discussion Forum
Show Parts for Model:

PTO Overrun Clutch

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Brian in MA

09-07-2007 04:53:50
216.19.232.66



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I was mowing with my 5600 and the Hesston Haybine yesterday and the overrun clutch for the PTO came apart, throwing the pto shaft right off the haybine. It is the $70ish one from TSC, with about 50 hours of use. I didn't see any horsepower limits on it, but I fear that I am pushing too much HP through it. I have noticed that the splines were getting a little marred and some implements were hard to attach, but figured that the steel is just softer than the PTO shaft on the tractor. Does anyone have a similar experience? Is there a better/stronger overrun I should be using? They sell one on this site, but it looks exactly like the one I just ruined, I'd rather find the right one if this isn't it. Thanks.

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RodInNS

09-07-2007 09:14:38
24.224.246.156



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 04:53:50  
The mower doesn't need an ORC. If it did they would have installed it in the shaft on the mower, or they should have.
If you wish to have one on the tedder I would just install one on the tedder. Most tedders have a metric WalterSchied teardrop shaft. Measure the cross size and figure out the shaft size and then order a ORC that attaches to the tractor spline on one end and that cross on the other, and also install a new cross while you're at it. Then leave the Ford to go with no ORC since you probably don't need it for most other things anyway.

Also, for those that mentioned it, there is no ORC built into the Ford's internal parts. IT is one solid driveline from the engine back, through an independant hydraulic clutch with a brake to hold it while it's not in use...

Rod

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Brian in MA

09-07-2007 09:20:48
216.19.232.66



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 Re: PTO Overrun Clutch in reply to RodInNS, 09-07-2007 09:14:38  
Thanks for the input from all. It was never a concern for me before, but since I have been using my recently acquired 4600, which when you turn the pto off, it slowly spins down, not a sudden stop like the 5600, I have been concerned.



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RodInNS

09-07-2007 10:47:24
24.224.246.156



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 09:20:48  
That's just a result of the weaker brake on the 4600...
I'd install the ORC in the impliment's shaft anyway if it's needed. They're not hard to get though mabey a bit mroe expensive to have several of them.
You can get fairly heavy models in the Bondolini shafts that will easily withstand 100 hp on 540... but those are class 5 shafts too.

Rod



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sotxbill

09-07-2007 06:33:15
66.143.230.17



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 04:53:50  
to answer your question,, most orc's are made for the early 16 to 40hp tractors.. so no.. all of them are pretty much low end and not very hd... maybe if everyone keeps thier eyes open,, we can spot a hd unit... good luck.. bill



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JK-NY

09-07-2007 06:05:20
66.218.11.144



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 04:53:50  
Doesnt your 5600 have live/independant pto? you already have a built in ORC(overrunnung clutch) and dont need an additional one. My NH 489 and old IH 990 haybines both have built in orc's also , I imagine your Hesston does too. You shouldnt need an an additional ORC.



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soundguy

09-07-2007 06:41:26
71.49.9.155



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 Re: PTO Overrun Clutch in reply to JK-NY, 09-07-2007 06:05:20  
Yes an NO.. on that 5600, while it does have independent pto, and the mower cannot back power the driveline, once you turn the pto off, then the pto brake clamps down.. that's why he's using the orc. That was my guess in the first reply.. etc..

soundguy



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Brian in MA

09-07-2007 06:28:32
216.19.232.66



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 Re: PTO Overrun Clutch in reply to JK-NY, 09-07-2007 06:05:20  
Yes, it is independent PTO. The problem is that when you turn the lever off, the PTO stops dead and that is a hard shock to the mower and tedder when I use that. That is why I wanted the ORC. The Hesston does not have an ORC.



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Brian in MA

09-07-2007 06:01:05
216.19.232.66



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 04:53:50  
I'm using it because the tractor brake stops the PTO dead and though I am able to operate it ok, I have "helpers" that while tedding don't think about it and flip the lever off which then grinds the gearbox on the tedder and makes me yell. It seemed like cheap insurance. It is also nice for the haybine to let it overrun rather than stopping it dead. The baler already has one built in. That's about all I use the PTO for.

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soundguy

09-07-2007 06:42:59
71.49.9.155



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 06:01:05  
Unless you can find a high hp orc.. i think I'd loose it, and just instruct the helpers on the proper operation of the equipment.

that or buy the disposable 40 hp orc's every year.. your call.

soundguy



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Roger in Iowa

09-07-2007 05:56:46
69.18.26.29



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 04:53:50  
You should not be using an ORC as it throws all the dimensions off for the PTO from the mower conditioner to the tractor.

Roger in Iowa



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soundguy

09-07-2007 05:49:53
71.49.9.155



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 Re: PTO Overrun Clutch in reply to Brian in MA, 09-07-2007 04:53:50  
Are yuo using the ORC primarilly to save your pto brake?

Soundguy



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