System

Problem

Solution

Standard Lock, KF2

KF2 spring does not lock

Make sure the KF2 spring’s Air Port 4 has minimum 4 bar air pressure before press BDC.

Check that all hose connections are correct

KF2 piston rod’s springback is greater than 1 mm

Make sure 100% of the KF2 spring’s nominal stroke length ±0.5 mm is used.

Make sure the KF2 spring’s Air Port 4 has minimum 4 bar air pressure before press BDC.

KF2 piston rod does not return

Make sure the KF2 spring’s Air Port 4 has zero air pressure when required to open.

Check for any obstructions in the tool preventing piston rod returning.

Check that there is gas pressure in the KF2 spring.