Kubota tiller not spinning

[red347lx]

First of all I am a tractor newby..baught a house that came with a Kubota b2150 with tiller, blade and mower deck.
Tried hooking up the tiller today and I am having issues with it.
All hooked up correctly, but the PTO doesn't drive the tines . It engages the rear spline on the tiller but just sounds like it is grinding. Unhook the pto and I can spin the tines which does spin the pto shaft on the tiller. Any ideas what I am doing wrong? Thanks and be kind, I am new to the whole tractor lifestyle...Nate

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[red347lx]

Also, with the tiller raised, I can spin the tines without the driveshaft spinning. That doesn't seem right to me...

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[North Idaho Wolfman]

So the PTO on the tractor will spin but the tines don't, look for a shear pin on the unit.
besides that your looking at a repair of something that has broken.

To get better answers, pictures and/or tiller model #'s really help.

 

[Forvols]

Does the pto on the tractor spin with out the tiller connected?

 

[red347lx]

BL60c is the tiller model #
The PTO works fine with or without the tiller attached.
The gearbox shaft on the top of the tiller spins when the pto is engaged which I believe means something isn't right in the gearbox itself...
Are parts available for these still?

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[Daren Todd]

Are you sure you didn't break a shear bolt? That's usually the most common issue for why the tines aren't spinning.

Edit: Never mind, I see that was already a suggestion. Having technical difficulties with my tablet

 

[red347lx]

I can check, where would the shear pin be located?

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[Daren Todd]

The tillers I've used had a chain drive for the tines. PTO operated a sprocket that in turn operated the chain drive. If I remember right, the shear pin was on the shaft for the tines.

There was a side cover that needed to be removed for easy access to the shear bolt. Had to spin the tines to line the hole back up.

I checked the Kubota website, they do have the illustrated parts list. You need to except terms and conditions. Then click on the wild card option when you type in the model number.

 

[red347lx]

The tillers I've used had a chain drive for the tines. PTO operated a sprocket that in turn operated the chain drive. If I remember right, the shear pin was on the shaft for the tines.

There was a side cover that needed to be removed for easy access to the shear bolt. Had to spin the tines to line the hole back up.

I checked the Kubota website, they do have the illustrated parts list. You need to except terms and conditions. Then click on the wild card option when you type in the model number.

Thanks, I did check that out, but didn't find a diagram of the gearbox on top of the tiller. I'll try and search a little further tomorrow. Weather is supposed to be fair tomorrow, hopefully I can get it figured out then.

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[North Idaho Wolfman]

When you spin the tines can you fell resistance and hear the chain spinning?

You can see the whole thing in full detail here:
https://www.messicks.com/ku/84552

 

[Russell King]

I understand from your posts the following:
The tractor PTO seems to work correctly. It spins with nothing attached and does actually drive the tiller input shaft. Is that correct?

The PTO shaft on my different brand tiller has a strange shear pin arrangement. The yoke at the tiller end has a tab that has the shear bolt through both tabs. The yoke is split and has a simple ball bearing arrangement in case the shear bolt fails, the tractor end would be able to rotate while the tiller side would be static. If the ball bearing was rusty it would make some noise.

Does the input shaft into the gearbox rotate by hand? If so do the tines rotate (if tiller is off the ground)?

You may be able to easily remove the gearbox and see if it rotates easily


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[Tx Jim]

I can check, where would the shear pin be located?

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Shear bolt(key 76) is located on u-joint next to tiller gearbox.

 

[red347lx]

Shear bolt(key 76) is located on u-joint next to tiller gearbox.

Here's a quick look at what is happening
http://cloud.tapatalk.com/s/5af047672e42a/20180507_083149.mp4

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[red347lx]

The sheer pin appears to have been replaced at some point with a normal bolt.

I can't spin the input shaft on the gearbox by hand when the clutch shaft is not on..

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[North Idaho Wolfman]

Start by removing the chain case cover and see what's going on in there, But that gear box does not sound good at all!

 

[vic gerbasi]

Most of the private label tillers are made in italy the name Sovema try a matching size for parts

 

[North Idaho Wolfman]

The sheer pin appears to have been replaced at some point with a normal bolt.

I can't spin the input shaft on the gearbox by hand when the clutch shaft is not on..

The "shear pin" is going to be just a normal bolt on that setup.

Do you mean you can spin the gearbox shaft when the PTO shaft is not on it?

 

[red347lx]

The "shear pin" is going to be just a normal bolt on that setup.

Do you mean you can spin the gearbox shaft when the PTO shaft is not on it?

No it won't spin by hand

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[red347lx]

Took the cover off, chain and sprockets look great, next up. Remove the gearbox[emoji848]

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[Ike]

Does the input shaft on your gearbox turn when you turn the tiller tines by hand. Pull the PTO shaft off the gear box and try turning the shaft by hand. If it turns the times it will probably be Ok. Check that shear pin. I have seen them snap and both ends stay in the shaft making it look like they are OK.