Purpose and Overview
This guide explains how to replace and calibrate the rack and pinion on Anderson Selexx series machines when components become worn. There are two types of rack systems used on these machines:
• Straight rack – uses a spring‑tensioned pinion to maintain cutting accuracy even when components show slight wear.
• Helical rack – relies on precision‑machined parts with no tensioning to achieve high‑speed, high‑accuracy and long life.
Follow the numbered procedures in this guide to replace the rack and pinion, then verify that the axes are re‑synchronized and the reference point is reset.