How to calibrate the changes "" golf 1991 ""

Good afternoon!
How are the changes of a golfite calibrate?

I cannot put the second or fourth, my transmission brings 5th, and neither does it enter, in a nutshell I am with the 1 era and 3 era.
Does anyone know how to calibrate them? I know that something moves in the guesitos that go at the tip of the rod of the changes, which goes behind the transmission.

Thank you!

If it is equal to the other Volkswagen then you must release the bolt that affirms the clamp of the tip the selector rod and turn the same a little tight and tests and so you take it until you give with the march, the other way is to put the first by hand from the box and tighten the clamp while loading a little with your hand the lever is only patience, but how did they be deregulated? Did you do any repair?