FM-20: FM-20 ABNORMAL GRINDING, RATTLING, OR SEVERE VIBRATION

Abnormal grinding, rattling, or severe vibration during operation indicating mechanical faults.

• Motor or gearbox
• Drive sprocket or internal drive parts

• The saw makes new grinding, clacking, rattling, or strong vibration during no-load running or cutting.

  The saw makes new grinding, clacking, rattling, or strong 1. Release the trigger, remove the battery, and stop immediately if the sound is harsh,

• root cause analysis
• tools needed
• step-by-step repair procedure
• diagrams
• exploded views
• post-repair checks

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