The Spring Plunger is used during unit injector synchronization to apply consistent pressure to the injector rack head. It operates using an internal spring mechanism that generates controlled resistance when engaged. This controlled force allows the injector rack head to remain steady while synchronization adjustments are carried out. The plunger reacts smoothly to applied movement, ensuring accurate alignment without sudden displacement.Attributes:• Contributes to repeatable calibration outcomes.• Stabilizes injector rack positioning during calibration tasks.• Enables steady contact between the tool and injector rack head.Applications: The Spring Plunger is used during unit injector synchronization, where it applies controlled force to the injector rack head to hold position and allow accurate adjustment.