Nissan: Adjusting Nissan Terrano clutch, nissan terrano, shift fork

Question
QUESTION: I have a 1998 Nissan Terrano 2.7 TDI 4X4.It is manual gear change.It has covered 73,000 miles.I have noticed in the last couple of months that when I put the car into gear I  need only to lift the clutch very little indeed before the car begins to move away. I have blead ( bled ) the clutch but this seems to make no difference.Is there any form of adjustment I can carry out to improve this,please? There is no "crunching or grinding of gears when using the car. It goes into gear perfectly well and there is no clutch slip or anything unusual,only the fact that it pulls away when lifting the clutch so slightly. Thank you.
ANSWER: Sounds like the slave and master are not working well. You have to watch the movement of the slave cylinder. If its not moving at its full travel you have a problem. Its either the above or the shift fork.

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QUESTION: Sorry but how do I know whether the slave cylinder is traveling its full distance and what is the shift fork,please? Thank you.

Answer
You can look at while its moving. It should move almost to the end of the opening. The fork is the piece that its pushing to engage and disengage the actual clutch assy. If I was to guess on this one I would replace the master and slave cylinder. The reason I say this is based on the fact that if the clutch is bad your are going to replace them along with the new clutch anyway.