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Implement Alley Discussion Forum

JD 925 MoCo with Impeller

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Bill C

05-28-2005 15:26:10

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I bouught a used JD 925 disk mower last year. It works fine except in 3 or 4 ft orchard grass 1st cut, you can't get any speed out of it. I can cut big 1st cut faster with my JD 1219 cycle bar MoCo. I have tried 2 different MF 285's ( 82HP), looks to me you need a whole lot more HP to run this. I have cpened up all the conditioning gates, no help. The impellers are set at high speed, will changing the gears to low speed help? Any ideas would be helpful. Bill

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HA in Oh

05-31-2005 08:17:25

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Re: JD 925 MoCo with Impeller in reply to Bill C, 05-28-2005 15:26:10

I just got a 926 impeller in march, had a 1219. I did alot of looking and asked alot questions before I got it. I was told to run the impellers in the slower speed, it would condition better and run easier. Close the baffle up for grass, open for alfalfa. So far we've only cut about 25 acres of heavey alfalfa, alfalfa/ orchard grass on bottom ground. We've run it with a 4010 and a 2755 running in 6th gear, they are both loaded, but handle it fine. I know we'll have to slow down on hill ground. More hp would be nice, but I can't swing it this yr. Switching your impeller gears will help.

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Bill C

05-31-2005 20:36:01

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Re: JD 925 MoCo with Impeller in reply to HA in Oh, 05-31-2005 08:17:25

Hi, I have been wanting to swap the gears. It a lot of work since I will probable have to heat the gears to get them off the shaft, thats been my experience with the 1219. Thanks, Bill

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HA in Oh

06-01-2005 01:57:16

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Re: JD 925 MoCo with Impeller in reply to Bill C, 05-31-2005 20:36:01

The gears shouldn't be any problem to switch. They just slide on the splinded shafts and are held there with a bolt and a heavy washer. Just use a piece of wood to jamb into the gears when removing and replacing the bolts. Be careful not to damage the gears or hurt yourself when doing it, the wood could slip out. Make sure there isn't any little pieces of wood in the gear teeth that could break a tooth when your done. Btw my son cut some really heavey alf/org. yesterday with the 2755,. ran in 5th, said it was enough for it, field was flat right on the river.

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HA in Oh

06-01-2005 01:56:33

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Re: JD 925 MoCo with Impeller in reply to Bill C, 05-31-2005 20:36:01

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txgrn

05-28-2005 16:47:25

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Re: JD 925 MoCo with Impeller in reply to Bill C, 05-28-2005 15:26:10

Glad to read your post; not wishing you ill will, but trying to decide if a disc MoCo is worth buying when I think my 1209 does everything I want.....except mow wire grass which I can clip with a rotary mower which I already possess.

Several are for sale around here and I hear all this hoop-la about how great they are. Hmmmmm mm.

Mark

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HA in Oh

05-31-2005 09:03:22

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Re: JD 925 MoCo with Impeller in reply to txgrn, 05-28-2005 16:47:25

Mark, discbines are costly, I looked at them for several yrs before I finally made the investment. Their's no comparing them to a sickle type. Don't buy a roll machine unless it's a NI or a C/IH, both are the same machine. They have belting type rolls, simaler to bush hog wheels, that do some mashing of the hay since they run close together. JD and NH type of rolls do very little conditioning on a disc machine because the hay goes through the rolls sides ways, sorta speak, with the disc pulling the hay over as it cuts it, unlike a haybine where the sickle cuts it and the reel drags it straight thur and crimps in the intermeshing rolls. I hope this makes some since. BTW hows the 4230 handle that baler, I have a 535 and it works my 4010 hard on hills and baling haylage. I havn't been considering 4230s, been dreaming 4430, 4440, or mabey even a 6410 w/mfwd.

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Jim D in Ohio

05-29-2005 20:47:52

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Re: JD 925 MoCo with Impeller in reply to txgrn, 05-28-2005 16:47:25

I agree they take a lot of power to run. I have a 916 8'2" cut and it will use all of 80hp to run it in tall downed stuff. The good thing is you won't pass me up in the field with any sickle cut mower....

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Don-Wi

05-29-2005 16:40:26

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Re: JD 925 MoCo with Impeller in reply to txgrn, 05-28-2005 16:47:25

We've only got a NI sickle type moco, 9' cut, and it works great in wet hay. On friday night after a good 30 min rain I went out and cut some rye that was all of 3' or mare tall, and it worked great! There was just a mist above the machine the whole time from the crimper rolls. Not once has hay, grass, or any thing else wrapped around them because it was "too wet to cut" I go cut in the morning while it's too wet to bale, then hook on the baler around 11 or 12 and go make some hay.
Donovan from Wisconsin

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John e.c.MI

05-29-2005 05:54:30

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Re: JD 925 MoCo with Impeller in reply to txgrn, 05-28-2005 16:47:25

I have a JD 926 with impellers and it will cut anything you put in front of it except stones. They do take some power to run. We use either a 4430 or 4440 on ours. I have yet to see anything this machine cannot cut, tall hay, down tangled hay, wet hay whatever. But as I said it takes some horses to run it. We definately noticed it in fuel consumption.

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