clutch doubts

Hello everyone, I am new in the forum and I would like to ask a question.
I have a tractor, Same Antares with clutch problems, scratching the speeds and I don't think it's because it is worn since it has strength and does not seem to skate. The other day I took 3 laps to the enough of the bombin and the blood, when the liquid was bleeding as amietely and thick, here it seems that it goes better, but not quite.
If anyone knows what can be or what can be done more, I will appreciate it.
All the best

Hello, look to see if you can give the bomb enough to the bomb. If it continues, it can be problems in the clutch mace

Thank you for your answer, but if so, that the mace was badly, what is the most economical solution and how it could be done.
A thousand Garcias