FM-15: The Saw Grinds, Knocks, Rattles, Or Vibrates Abnormally

The running saw has harsh noise or vibration not caused by the workpiece.

• Blade is bent, cracked, loose, dirty, or mounted off-center
• Guard or shoe is rubbing the blade
• Sawdust or a foreign object is caught near the blade or guard
• Spindle, bearing, gearcase, or motor is damaged
• Housing, handle, shoe, or fastener is loose or cracked

1. No-load running is smooth, without rubbing or harsh noise.

1. Release the trigger without twisting the saw and wait for a complete stop.
2. - Remove the pack - inspect blade, clamps, guard, shoe, and fasteners.
3. Clean dry debris, fit a known-straight blade, and hand-turn it to check for contact.
4. - Run one brief no-load test - if harsh noise or vibration remains, stop and seek service.

This is a preview of the troubleshooting guidance included in the full repair manual.

• Depth lever and shoe
• Worklight, housing, or rails
• Lower guard and retract lever
• Lower guard mechanism
• Spindle, gearcase, and blade
• Depth, bevel, or shoe assembly
• Circular saw blade
• Motor, gearcase, or spindle

• The Saw Grinds, Knocks, Rattles, Or Vibrates Abnormally

  The running saw has harsh noise or vibration not caused by the workpiece.

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

Public pages show a preview only. Purchase the full manual to download complete repair steps, diagrams, and verification procedures.