I have a Caroni FL1400 3pt hitch tiller. Recently hit a rock while tilling and lost rotation. This model does not appear to have a smooth shaft coupling with a shear pin like you see on other equipment (like a bush hog). The shaft running into the gear box rotates with the PTO but nothing transferring to rotate the tines. I did not have PTO slip clutch on the tractor. Anyone have experience with this model / problem? Is there possibly another shear pin that I am missing or will I need to tear into the gear box and chain drive transfer case to diagnose? Attaching a parts diagram for the tiller. I don't see any kind of shear pin in the mechanical drive train.
leonz
Super Member
Chances are you broke the roller chain, you need to open the chain case to see if it has snapped.
Drain the oil out of the chain case and remove the side housing-part no. 8 to see if the roller chain
is broken first.
You should have a new gasket or PERMATEX form a gasket on hand to make a new gasket and gear oil.
Drain the oil out of the chain case and remove the side housing-part no. 8 to see if the roller chain
is broken first.
You should have a new gasket or PERMATEX form a gasket on hand to make a new gasket and gear oil.
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Thanks for the reply ptsg. I thought that might be the case too. However, I can see that the pinion gear shaft is rotating with the PTO running so I think that the linkage is still in tact. I am for sure going to check it again
Thanks for the input leonz. This sounds like a good first step. I do feel vibration in the shaft housing from the gear box to the chain drive gear with the PTO is running so I'm hopeful that it is the chain and not something more critical. If the chain is still in tact, I'll keep working my way toward the gear box to see if something is broken there.
leonz
Super Member
If the roller chain is not broken, I want you to send the Caroni company an e-mail before you even contemplate a teardown of the rototiller drive system as you will have to take the entire drive shaft and tube off of the rototiller starting at the drive sprocket and it requires a complete teardown by unbolting the gearbox from the tiller shroud, removing the gearbox cover plate bolts and pulling the shaft and tube away from the gear box to expose the rack and pinion gears.
It would be best for you to go to a Fed X store and have the parts diagram blown up to assure you have a full view of the entire drive/driven system
for the rototiller.
Investing in a EuroCardan drive shaft with a slip clutch is a must do to protect your rototiller investment.
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