Zetor 6718 Clutch Seal

[Stuart]

Hi guys,
I have a Zetor 6718. I seem to have a oil leak, and i am sure that it is gearbox oil that is dripping out of the seal, where the clutch spindle goes from the bottom of the clutch pedal into the gear box. Where about could i buy a new seal from and how easy is it to fit. Regards
Stuart

 

[stuart]

Does anybody have any ideas?

Regards
Stuart