setup and adjustment

**Setup and adjustment** is the **planned nonproductive time required to change equipment from one product or condition to the next and stabilize it for compliant output** - it is a major availability loss category in high-mix operations. **What Is Setup and adjustment?** - **Definition**: Changeover and tuning activities including recipe changes, hardware swaps, calibration, and startup checks. - **Loss Boundary**: Starts at end of prior run and ends when stable in-spec production resumes. - **Typical Sources**: Product-family changes, maintenance recovery, chamber condition resets, and operator handoffs. - **Improvement Methods**: SMED principles, standardized work, and pre-staged materials. **Why Setup and adjustment Matters** - **Availability Impact**: Long setup windows reduce total run time available for production lots. - **Capacity Penalty**: High changeover burden lowers effective output without any equipment failure. - **Mix Sensitivity**: Product diversity amplifies cumulative setup loss. - **Quality Exposure**: Poor adjustments can cause startup defects and requalification delays. - **Planning Tradeoffs**: Batch sizing and sequencing decisions are constrained by setup overhead. **How It Is Used in Practice** - **Time Decomposition**: Break setup into task elements to isolate avoidable internal steps. - **Externalization Strategy**: Move prep work offline before tool stop whenever feasible. - **Standard Execution**: Use setup checklists, kitting, and verification gates to reduce variability. Setup and adjustment is **a controllable availability loss with strong productivity upside** - reducing changeover and stabilization time adds capacity without new tool investment.