L345 with 1720 loader issues

[Shadetree55]

I am not clear on what you are replacing. You are not going to match the crankshaft spline without a lot of searching if at all.

Dan

Sorry I know I’m not very good at explaining. I will get pictures of what I’m talking about. The circled parts are essentially what I’m trying to replace.

Edit: I know there’s no chance to match the splines. The u joint it has on it is keyed that goes on the splined crankshaft. It’s only holding on with a set screw that is screwed into the splines. But it’s worked for the last 15-20 years.

 

[TheOldHokie]

Sorry I know I’m not very good at explaining. I will get pictures of what I’m talking about. The circled parts are essentially what I’m trying to replace.

The crankshaft end is a real Unicior
Why cant you use that shaft?

The rest is easy. The two shafts are coupled with a chain coupler like the one I linked earlier.

Dan

 

[Russell King]

@TheOldHokie and @Shadetree55

That is a different type of extension than I have seen also! Is the FEL an aftermarket brand or is it Kubota branded?

it appears there are two cylindrical shafts that are connected together with a chain coupling. Then there are some type of solid couplings at each end (one connected to the pump and one connected to the tractor shaft. I would imagine those two solid couplings are smooth bore with possibly a keyway in the bore. Then a setscrew over each key. Like the ones in the lower left corner of this link. I see they are supplied in inch or mm size bores.

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

McMaster Carr also sells shafts of various designs but it may be easier and cheaper to get them machined locally.

 

[TheOldHokie]

@TheOldHokie and @Shadetree55

Thai is a different type of extension than I have seen also! Is the FEL an aftermarket brand or is it Kubota branded?

it appears there are two cylindrical shafts that are connected together with a chain coupling. Then there are some type of solid couplings at each end (one connected to the pump and one connected to the tractor shaft. I would imagine those two solid couplings are smooth bore with possibly a keyway in the bore. Then a setscrew over each key. Like the ones in the lower left corner of this link. I see they are supplied in inch or mm size bores.

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

McMaster Carr also sells shafts of various designs but it may be easier and cheaper to get them machined locally.

I think its safe to say both shafts have integral (welded) sockets on the ends.

The crankshaft end will be Kubotas standard metric involute spline which is really hard to match.

The pump end is plain bore with keyway. Easily matched

Apparently he is missing the chain coupler. Should be real easy to salvage both shafts and add a $30 off the shelf coupler.. Hard to spend more than $100 to make it good again.

Dan

 

[Shadetree55]

Sorry for the delay in getting pictures I’ve had it soaking in oil for a week. Here’s the set up it has now. It is a Kubota branded FEL. It’s the Kubota L1720 loader. Should I just get this cleaned up and set screws freed up and continue using it? The end with the u-joint that goes on the crank is a smooth bore with a key. So it goes on the splined shaft and is only kept in place with the set screw. The whole set up appears to be a homemade job.

 

[TheOldHokie]

Sorry for the delay in getting pictures I’ve had it soaking in oil for a week. Here’s the set up it has now. It is a Kubota branded FEL. It’s the Kubota L1720 loader. Should I just get this cleaned up and set screws freed up and continue using it? The end with the u-joint that goes on the crank is a smooth bore with a key. So it goes on the splined shaft and is only kept in place with the set screw. The whole set up appears to be a homemade job.

That u-joint is not going to work reliably. on the splined front PTO. You are going to have to find a way to adapt that spline to a keyed shaft.

Dan

 

[Russell King]

Do you know what this area has been rubbing against? I would eliminate the rub also, if that is possible. I would also eliminate the use of bolts as set screws to get rid of rotating projections that can cause injury.