How can I adjust a larder unit soft close mechanism?

My soft closers are around 8cm including the housing the closer plunger protrudes about 2cm when door open.

It sounds to me either it's fitted in the wrong place [too far forward], the plunger is not retracting fully, or the soft closer is not the right size for that door and is for a unit door/draw that requires that extra length plunger. Mine aren't adjustable I assume you'rs wont be either.

Bob
November 2010