Waterman 512 L ..

How do i unscrew the section form the barrel to get to the inksac?
Does is unscrew or do I pull ? And if it unscrews - clockwise or
anticlockwise ( seen from above nib down).
I soaked it overnight but no matter which way I turn or pull it won't
come loose and I 'm a bit hesitant to apply more force untill I know for
sure how to open it.
Corien

Corien wrote:

How do i unscrew the section form the barrel to get to the inksac?
Does is unscrew or do I pull ? And if it unscrews - clockwise or
anticlockwise ( seen from above nib down).
I soaked it overnight but no matter which way I turn or pull it won't
come loose and I 'm a bit hesitant to apply more force untill I know for
sure how to open it.

You first mistake was soaking it overnight. That may or may not have
caused serious damage. Describe the pen better if you want an answer.
lever fill? or Eyedropper fill? Lever--it pulls. ED---unscrews.
beyond that you need to read Da Book which devotes quite a few
illustrated pages on how to remove stuck sections without damage. Most
require some form of heat. Frank