Big Orn,
I thought of this at night in bed, a few hours after i wrote here (yes, i'm brainsick taking the whole world's
zetor problems with me to bed, i know...
)
but there's a shaft with two arms, that goes throught your bellhousing, the slave clutch cylinder is on the outside of the trans, pushing on an arm, which is connected via this shaft to another arm operating the clutch bearing.
...Maybe your clutch arm is bent, so that it sticks sometimes ?? or maybe a good greasing will
help ??