failure mode

FM-21: 砂光机在普通负载下反复断电

工具空载运行,但正常轻度打磨时反复关闭。

诊断概览

工具空载运行,但正常轻度打磨时反复关闭。

可能根本原因

  • Battery protection opens under load
  • Contacts or battery are weak
  • Vents are blocked or tool is overheated
  • Pad/drive friction or controller fault

快速检查

  1. The sander runs continuously under ordinary light sanding load.

维修预览

  1. Set O, remove the battery, let both cool, and clear every external vent.
  2. 确认垫片自由运动,使用新砂盘,轻压且除尘路径畅通。
  3. 使用已知良好且充电的battery重复短测试。
  4. 若普通负载下断电再次发生,停止使用并使用授权服务。

这是完整维修手册中所含故障排除指南的预览。

常见修复

  • 端子触点
  • 无刷motor和风扇

相关症状

  • 砂光机在普通负载下反复断电

    工具空载运行,但正常轻度打磨时反复关闭。

包含在完整手册中

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

公开页面仅显示预览。购买完整手册以下载全部维修步骤、图示和验证流程。

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