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How to check for contact erosion on a WL breaker? 
1. Charge storage spring by hand.
2. Switch breaker on.
3. Remove arc chute.
4. Check for contact erosion.
Note: If the indicator pin is no longer visible, the contact system must be replaced This video is meant only to enhance, not replace, the operating instructions enclosed with every product. Please review all instructions carefully before viewing the video. Product instructions are subject to technical changes without prior notice.
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