FM-12: Sanding disc loses retention during sanding

A centered disc moves off-center or comes off while the tool is powered on the work.

• Pad hooks or disc backing are worn
• Disc was not fully pressed onto a clean pad
• Excess pressure or edge loading is peeling the disc
• Pad or belt motion is abnormal

1. The fresh disc remains centered through a controlled sanding test.

1. Stop the tool, remove the battery, and discard any shifted or damaged disc.
2. Clean the pad face and inspect hooks, pad looseness, and disc compatibility.
3. Fit a fresh centered disc with all eight holes aligned and use light even pressure.
4. If it shifts again, stop and route the proven pad, mount, belt, or drive fault.

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

• Sanding pad and four screws
• 5-inch 8-hole hook-and-loop sanding discs

• Sanding disc loses retention during sanding

  A centered disc moves off-center or comes off while the tool is powered on the work.

• 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.