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PTO spline


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#1 Nessmuk OFFLINE  

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Posted March 13, 2018 - 01:55 PM

Anyone have the size and number of splines I need to know to in order to buy a pto shaft to power a PTO shaft driven implement?

#2 DMAX ONLINE  

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Posted March 13, 2018 - 03:04 PM

I think they’re 3/4” / 11 splines. Not sure if the 1655 series are different than your 1650.

#3 limebuzz OFFLINE  

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Posted March 13, 2018 - 05:17 PM

Both are the same pto.

#4 MacWorld OFFLINE  

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Posted March 14, 2018 - 07:52 AM

1655 and 1855 are 1" 15 splines. Front and mid are male outputs and the rear is female output. 1650 are not the same size?!?

 

1" 15 splines is the same size as John Deere 300 and 400 series but beware that some of JD female PTO shaft will not engage on MF male shafts, they require modification. See this thread: http://gardentractor...-1655/?p=824347


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#5 TAHOE OFFLINE  

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Posted March 14, 2018 - 08:36 AM

I think they’re 3/4” / 11 splines. Not sure if the 1655 series are different than your 1650.

The 3/4-11 is the couplers off the motor and to the hydro pump.


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#6 Nessmuk OFFLINE  

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Posted March 15, 2018 - 02:22 PM

My PTO has a female opening, not male like the bigger tractors.

#7 olcowhand OFFLINE  

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Posted March 15, 2018 - 04:33 PM

1655 and 1855 are 1" 15 splines. Front and mid are male outputs and the rear is female output. 1650 are not the same size?!?

 

1" 15 splines is the same size as John Deere 300 and 400 series but beware that some of JD female PTO shaft will not engage on MF male shafts, they require modification. See this thread: http://gardentractor...-1655/?p=824347

 

 

My PTO has a female opening, not male like the bigger tractors.

Yes, as stated above, 1", 15 spline.  50 and 55 series are the same.


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#8 Nessmuk OFFLINE  

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Posted March 16, 2018 - 11:08 AM

Ok. I buy the shaft, then put it in the tractor with a c clip to hold it in.
Is there a coupler to attach to it to convert it to take common PTO shafts?

#9 MacWorld OFFLINE  

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Posted March 16, 2018 - 12:02 PM

Ok. I buy the shaft, then put it in the tractor with a c clip to hold it in.
Is there a coupler to attach to it to convert it to take common PTO shafts?

 

Can you be a bit more precise? First you want to use your front or your rear PTO? Also what speed does the implement you have need to operate at? At full throttle, the front PTO of the 1655 and similar turns at 3600rpm and the rear one is 2000rpm. An example, John Deere front implements need 2000rpm. Most common big tractors 3point implements need 540rpm.



#10 Nessmuk OFFLINE  

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Posted March 16, 2018 - 03:27 PM

The rear PTO.
A tiller.
Trying to add a common quick coupler with u joints.

#11 MacWorld OFFLINE  

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Posted March 16, 2018 - 05:13 PM

The tiller in question requires an input of 2000rpm I suppose...

 

What do you consider a common quick coupler? There are a lot of sizes! 1" 15-spline is quite common for tractors of this size... In fact the original tiller for the 1655 and similar were 1" 15-splines

 

http://www.tractorda...-pto-types.html



#12 olcowhand OFFLINE  

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Posted March 16, 2018 - 06:18 PM

Ok. I buy the shaft, then put it in the tractor with a c clip to hold it in.
Is there a coupler to attach to it to convert it to take common PTO shafts?

  You do not need a clip on the Massey IF you have 2 grooves machined into the stub shaft you will be using.   The groove member Macworld added was so his implement shaft quick coupler would hit it when it was in the proper place for locking so it made things simpler.  One machined groove for the tractor's locking balls to grip into, the other for your female quick coupler on your implement driveshaft to hook into.  


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#13 Nessmuk OFFLINE  

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Posted March 16, 2018 - 10:16 PM

Thank you, that helps. As I'll be making implements for this, I want to use an implement PTO connector I can find anywhere.

#14 The_SnowMan710 OFFLINE  

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Posted April 09, 2018 - 11:51 PM

What do you consider a common quick coupler?

 

http://www.tractorda...-pto-types.html

 

First post on this forum, so go easy on me if I missed something............. but I think I'm baling what the original poster was cutting... 

 

I have a Snapper/MF1650 with the 15T female PTO.  I want to build a number of custom PTO driven implements to fit it but the 15T shaft seems to be an odd duck, or at least by my research efforts.  Regardless, how would a guy go about adapting a 15T male shaft to a 6T male (commonly known as a 540 RPM shaft) to accept commonly sold 6T/540 female PTO jack shafts and U-joints?



#15 MacWorld OFFLINE  

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Posted April 10, 2018 - 11:54 AM

how would a guy go about adapting a 15T male shaft to a 6T male (commonly known as a 540 RPM shaft) to accept commonly sold 6T/540 female PTO jack shafts and U-joints?

 

 

I guess you would need to find a shaft with 1" 15T at one end and 1-3/8" 6T at the other. Maybe buy those

https://www.surplusc...ft-1-3092-6.axd

https://www.surplusc...ft-1-2935-6.axd

and have a 1" hole drilled (or smaller and reduce the round 1" shaft accordingly) in the 1-3/8" 6T one and fit it on the round part of the 1" 15T, probably welding it in place toward the tractor side. This would have to be kept as short as possible.

 

I am wondering how the bearings (and the inner splines) of the tractor PTO will handle the rotating weight of the bigger u-joint and shaft, that will get pretty heavy for it I guess. Added to this, the 1-3/8" 6T are meant for 540rpm, the forces will increase a lot at 2000rpm, adding load to the tractor parts.

 

Personally I wouldn't risk this kind of setup and would look for used John Deere 300/400 tractors PTO shafts on eBay.

 

Otherwise there is also the possibility to make a 2000rpm 1" 15T -> 540rpm 1-3/8" 6T gearbox to use standard 540rpm implements on the tractor. This was an option on most Cat. 0 equipped tractors including the 1655 and similar.


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