🔍 Key Concepts

• Functions of luff, hoist, and rider block purchases on a pedestal crane • Which wire rope systems are essential for basic crane operation • What equipment on a crane is often considered auxiliary or supplemental rather than mandatory

💭 Think About

• Ask yourself: Which of these purchases must the crane have to lift and move a load at all, and which could it technically operate without? • Think about a standard 30‑Ton pedestal crane doing basic cargo work: Which lines are absolutely required for safe operation, and which are used only for special handling or improved control? • Consider how regulations and manufacturers distinguish between primary lifting systems and optional features on cranes.

✅ Before You Answer

• Identify which purchase(s) are directly involved in raising/lowering the main load. • Identify which purchase(s) control the boom angle rather than the load itself. • Identify which purchase(s), if removed, would still allow the crane to meet its rated lifting function, though with less flexibility or convenience.