PTO EXTENSION

[LastSTRAW]

My Kioti has a different set up than my Ford tractors such that the PTO shafts on my attachments are too short for the Kioti. I don't want to buy new shafts just to use my new Kioti so I bought an overruning clutch so that I would have a longer PTO shaft and the benefit of an overruning clutch if I wanted to use it on the older tractors.

Unfortunately when I tried to put it on the tractor I discovered that the Kioti does not have the hole in the PTO shaft for a pin that all my Ford tractors do.

Is the hole in the PTO shaft common? Was it only on Ford tractors or was it a modification by the previous owner?

 

[DK35vince]

I have an older model DK 35.
I added a overrunning clutch to it, and my DK had a hole in the PTO shaft to add the overrun clutch.
The newer DKse model's may not have the pin hole.

 

[LastSTRAW]

My Kioti is a DK50SE with HST. Would be nice if it had the pin hole.

 

[mj007]

My Kioti is a DK50SE with HST. Would be nice if it had the pin hole.

Guess you're gonna have to drill one

 

[RoyJackson]

My Kioti has a different set up than my Ford tractors such that the PTO shafts on my attachments are too short for the Kioti. I don't want to buy new shafts just to use my new Kioti so I bought an overruning clutch so that I would have a longer PTO shaft and the benefit of an overruning clutch if I wanted to use it on the older tractors.

Unfortunately when I tried to put it on the tractor I discovered that the Kioti does not have the hole in the PTO shaft for a pin that all my Ford tractors do.

Is the hole in the PTO shaft common? Was it only on Ford tractors or was it a modification by the previous owner?

You don't need to drill a hole...and PLEASE DO NOT DO SO!!!

Here's what I think you need:
Pto Adapter 1-3/8 X6 Spline Male X 1-3/8X6 Spline Female Pto Adapter
This adapter adds about 4" (or a bit more) length to your tractor's PTO stub shaft. I have one and it works fine.

I don't have a Ford, but those adapters with the pin holes are made for older Ford tractors. I'm actually surprised anyone carries them.

 

[mj007]

You don't need to drill a hole...and PLEASE DO NOT DO SO!!!

BECAUSE ...... :confused2:????

 

[RoyJackson]

BECAUSE ...... :confused2:????

Are you familar with the PTO extention the OP described? Doesn't sound like it...
The PTO stub shaft is hardened to take the continous load. Drilling hardened steel is very difficult with hand tools even on a bench let alone when mounted on the tractor (I doubt LastSTRAW wants to disassemble his tractor's PTO). Drilling the hole...even match drilling using the extention's hole as a template, wouldn't be easy at all and would weaken the strength of the stubshaft.
Take a good look at your tractor's PTO stubshaft...I think you'll see what I mean. And, if you're familar with machining, you'll know why I wrote that.
Since the proper extention is readily available for 20 bucks...why would anyone use the wrong type of extention?

BTW, when I first bought my extention, I bought the same thing LastSTRAW did (which is all Tractor Supply had). I realized my mistake and bought the correct one.

 

[tradesmen4]

Thanks roy just what i have been needing Greg

 

[steve0413]

These work well.

KWIK-D-TACH SPLINE ADAPTORS - TO 75HP - Items - Ag and Farm Supply

 

[Z RENCH]

These work well.

KWIK-D-TACH SPLINE ADAPTORS - TO 75HP - Items - Ag and Farm Supply

These look a little pricy. I'm with Roy, get the $20 model and be done with it. I bought one from my local Kioti dealer and it works fine:thumbsup:

 

[LastSTRAW]

Thanks Roy for the advice. I went to tractor supply looking for the item you purchased and couldn't find it. That's when I bought the ORC. I thought at least I would get two in one with the overrunning clutch. Maybe I can use it on the older Fords.

I will not be drilling a hole in the new tractor PTO shaft but I appreciate the warning. It is not like I can't use the bush hog on the older tractors. I will have to just do my mowing without the comfort of the cab until I can get the new extension.

 

[RoyJackson]

Thanks Roy for the advice. I went to tractor supply looking for the item you purchased and couldn't find it.

Yeah, I went to 2 Tractor Supply stores...bought the wrong thing (same extender you bought).
I don't think TSC has it on their website either...

 

[rambler]

Drilling the hole would be very difficult for the reasons mentioned, but it would not be unsafe or weaken anything if one could do the job.

Most tractors had that hole, it was the common way to hook up ptos back through the 50's. Several of the old items I run on the farm don't have the lock collar, they use a bolt or pto pin through the hole.

--->Paul

 

[RoyJackson]

Drilling the hole would be very difficult for the reasons mentioned, but it would not be unsafe or weaken anything if one could do the job.

Most tractors had that hole, it was the common way to hook up ptos back through the 50's. Several of the old items I run on the farm don't have the lock collar, they use a bolt or pto pin through the hole.

--->Paul

The key word is "had"...

As a man with extensive experience in manufacturing and machining, I can assure you those holes were drilled before the shaft was heat treated (case hardened, at minimum)...and likely stress relieved.
Drilling a shaft after those processes would, as I wrote in the previous post, be tough enough with the proper equipment on a bench. It would be very difficult to drill the hole while the shaft is installed.
Good possibility the hole would also be a stress riser.

 

[steve0413]

These look a little pricy. I'm with Roy, get the $20 model and be done with it. I bought one from my local Kioti dealer and it works fine:thumbsup:

They are a bit pricey. I got mine for a little less than $50. They are heavy duty and quick on/off. I bought this one because (1) I needed it quick and (2) I would have had to drive another 90 miles to get the cheaper one.