English to Czech Tech/Engineering Materials (Plastics, Ceramics, etc.) automatic glass containers forming

porozumění větě (téma kalibrace stroje, text zřejmě psal non-native English): Almost all mould gears for NNPB are designed with an overtravel (exceptions are possible).

Následuje text: This means that in a section, running without glass, the plunger is stopped by the guide ring. Due this overtravel, the piston will not reach the real upper position, as long as the neckring is on top of the plunger. To excecute the 2nd way of fine calibration, the neckrings (invert) must be placed at the blow side, to allow the piston to reach the real upper position.

Předem moc děkuji, už mi to nemyslí.