My Dream Power Hammer Restoration! Part 16
About this video
After 70 days of intensive restoration work, Steele finally powers up his 1958 Massey 500-weight Clear Space power hammer—a childhood dream machine. With help from fellow maker Will Stelter, he installs the VFD motor, runs the hydraulic system, fits six precision-tensioned belts, and adjusts the dies and valve timing to get the hammer operational. The machine had spent over 20 years abandoned in the bush before arriving caked in coal dust and decades of accumulated grime. Despite encountering VFD programming issues under load, Steele successfully forges steel, discovering the hammer’s remarkable speed and sensitivity—and revealing how much work remains to fully dial in the system.
Key takeaways
- Precision belt tensioning is critical: Steele uses a string-line and Newton-force method to tension belts to exact specifications, as running too many belts than engineered creates dangerous power transfer issues; the original design called for 10 belts but modern calculations show 6 suffice
- Understanding historical documentation prevents costly mistakes: Steele regrets not absorbing manual details before committing to modifications, discovering after 40 readings what he missed—emphasizing that restoration requires careful study of original specifications and design changes over time
- Iterative cleaning cycles are essential for heavily contaminated machinery: After 20+ years of exposure to coal dust and grime, Steele must repeatedly run, disassemble, and clean the hydraulic system to flush accumulated debris that damages performance
- Valve timing and load balancing demand hands-on tuning: Small adjustments to valve clearance (measured in thousandths of inches) significantly affect performance, and motor/VFD settings must be carefully calibrated to avoid stalling under forging load
- Custom fitting components like dies and wedges requires precision measurement and iterative testing: Using Prussian blue to identify contact points, then filing and testing repeatedly ensures dies sit flat and wedges seat properly without damaging historic castings
Episode details: published November 11, 2026 · 2.4M views · 42:03 long. Summary written by Self Growth Videos from the episode itself. Steele’s machine histories and restoration judgments are his own, told and attributed as his. Heavy machinery and hot metal are dangerous — these pages are commentary and education, not instruction to imitate.
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