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Converting a Haban Sickle bar mower from 2000 rpm, to 540....???


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16 replies to this topic

#1 Pa Plow Day OFFLINE  

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Posted June 16, 2011 - 04:59 PM

Hi all, i also posted this in the mechanical forum, i wasn't sure the best place to post it....sorry

My brother bought a 3 point hitch haban sickle bar mower, and in turn i acquired it. I know it came from a John Deere 400, and we got a drive shaft with it that appears to be 2000 rpm. i never considered this until i got the unit up and running, and the speed appears to be so slow that i can't cut much of anything with it.

For general reference i have a 2305, with 540 pto.

Theres no gearbox, but rather a transfer shaft from the driveshaft, to a belt pulley. That pulley is small, and the pulley on the actually cutter is quite large, i was thinking of trying to switch the 2 pulleys, or just trying to find a larger diameter pulley.

In any case, has anyone done such a switch with a similar unit? I'm thinking this is a long shot, but rather than trial and error, i would like to find some information on how it can be done.


thanks!

#2 olcowhand ONLINE  

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Posted June 16, 2011 - 05:08 PM

Measure both pulley OD's, then get back with us. We can help figure the needed pulley sizes.

#3 tex tractor jack OFFLINE  

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Posted June 16, 2011 - 05:10 PM

Yes, JD mowers have to turn fast, then they are the best. If you have the room I would think about switching them, but first you might figure the ratio to see what you will be turning the eccentric if you do switch. Wouldn't want to shake it apart.

#4 KennyP ONLINE  

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Posted June 16, 2011 - 05:24 PM

Yes, JD mowers have to turn fast, then they are the best. If you have the room I would think about switching them, but first you might figure the ratio to see what you will be turning the eccentric if you do switch. Wouldn't want to shake it apart.

Slow and steady gets more seat time.

#5 Pa Plow Day OFFLINE  

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Posted June 19, 2011 - 12:10 PM

hey everyone,

thanks for all the great replies, and i have great news. I did switch the pulleys....i know i just took a chance! But they swapped perfectly, and i ran the unit, and it works flawless! I just need a new belt, the old one is a little too big, and if i hit a thicker branch the unit binds up.

And for the second part of my story.....When i was putting all the guards and shrouds back into place i found one that stated : "do not exceed 540 rpm pto speed" . So it turns out i'm not converting it over to 540 rpm, i'm changing it back. Apparently the previous owner changed it to work better on his tractor. So all is well that ends well.

Thanks again!

#6 Pa Plow Day OFFLINE  

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Posted June 19, 2011 - 12:23 PM

Here it is, works like a charm! Lifts vertically with the 3 point hitch, and the cutter bar raises and lowers on a hydraulic cylinder. It was well worth any time and money i have in it!

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#7 NUTNDUN OFFLINE  

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Posted June 19, 2011 - 12:27 PM

Very nice Bryan. Before you know it the township will be calling you asking if you can mow some of the roadside banks :D

#8 jj69chev OFFLINE  

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Posted June 20, 2011 - 09:05 AM

Very nice Bryan. Before you know it the township will be calling you asking if you can mow some of the roadside banks :D

:ditto:

#9 MH81 ONLINE  

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Posted June 20, 2011 - 09:23 AM

That is a very cool setup. :thumbs: Glad you got it working!
  • Pa Plow Day said thank you

#10 dstaggs OFFLINE  

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Posted June 20, 2011 - 12:54 PM

Just have to LOVE it when all comes together.

#11 Pa Plow Day OFFLINE  

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Posted June 20, 2011 - 07:58 PM

Just have to LOVE it when all comes together.


Yeah it felt good, and its funny because i was pushing to get it together because the township hasn't mowed our road edges yet, and they were 3 feet high! So once i got it running, i cleared the sides of the road for all my neighbors!


The unfortunate part is theres only so much to cut....haha, maybe i better go solicit my services to the township...

#12 NUTNDUN OFFLINE  

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Posted June 20, 2011 - 08:02 PM

The unfortunate part is theres only so much to cut....haha, maybe i better go solicit my services to the township...


I seriously wouldn't be surprised if they took you up on the offer.

#13 mikebramel OFFLINE  

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Posted June 20, 2011 - 08:18 PM

Thats the popular thing to do now a days

#14 Pa Plow Day OFFLINE  

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Posted June 20, 2011 - 09:53 PM

I seriously wouldn't be surprised if they took you up on the offer.



ha! 4 feet at a time, i better charge by the hour, not the mile!

#15 mjodrey OFFLINE  

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Posted June 21, 2011 - 04:48 AM

That looks good on there Bryan.
  • Pa Plow Day said thank you




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