Swirl marks persist with a fresh correct disc

Visible swirl marks remain after using a fresh correct disc with light pressure and proper grit progression.

• Disc is off-center or contaminated
• Pad is loose, distorted, or worn
• Excess speed or poor stroke pattern
• Eccentric drive or bearing is abnormal

1. The controlled test leaves an even scratch pattern without persistent swirls.

1. Remove the battery, center a fresh correct-grit disc, and clean the work surface.
2. Verify pad security and flatness, then select a suitable moderate speed.
3. Sand with overlapping sweeping strokes, light pressure, and proper grit progression.
4. If swirls persist on clean scrap, route pad, vibration, or drive condition for repair.

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

• FM-33: Fm Dcw210 33

• 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.