Generator vibrates excessively during operation, causing noise and possible movement on the pad.

Safety: Keep clear of moving parts. Do not place hands on vibrating components while running.

• Inspect isolators: With the engine off, examine rubber vibration mounts between engine/generator and base. Replace cracked or collapsed mounts.
• Check mounting hardware: Tighten all engine, alternator, and base mounting bolts to specified torque.
• Rotor balance (advanced): If vibration persists, the rotor may be out of balance. This requires professional balancing or alternator service.
• Pad stability: Ensure the concrete pad is level and not cracked or shifting.