Lyman Designs Power Feed MK-7 Motor and controller
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The Lyman MK‑7 Power Feed is a 120 V AC motor‑driven table feed system used on Bridgeport‑style mills, featuring an integrated controller and stepper/servo drive for precise linear motion. Common failure points include the main power supply module (over‑voltage protection or fuse), the control board’s power input circuitry, and the motor windings; a non‑lighting unit often indicates a blown fuse, failed rectifier, or defective main relay. First‑check diagnostics: verify line voltage and continuity to the controller, inspect the power supply fuses and rectifier diodes for continuity, and review any diagnostic LEDs or error codes on the control panel before proceeding to motor winding tests.[oss-gpt-20b] |
Need your Lyman Designs repaired or tested?
We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
- ⚙️ Fast Diagnostics – Same-day evaluation available
- 🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
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Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
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🚑Shop Location🛠️
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
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Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
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