Perkins Excessive Vibration / Misalignment

Generator vibrates excessively or moves on its mounts during operation

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Damaged or collapsed engine mounts, Imbalanced alternator rotor, Loose mounting bolts, Misalignment between engine and alternator on frame

Safety: Keep clear of moving machinery. Do not place hands near rotating couplings.

Visual inspection: Check that all engine‑generator mounting bolts are tight and that anti‑vibration mounts are intact and not torn.
Base frame: Ensure the generator base is level and securely fixed to its foundation.
Coupling alignment: For sets with flexible couplings, inspect for visible misalignment or damaged coupling elements.
Rotor balance: If vibration persists, the alternator rotor may require dynamic balancing by a specialist.

Hard 4/5

Engine Mount Set

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