symptom

Kecepatan pad bergejolak pada pengaturan dial tetap

Pada beban nol dan satu posisi dial tetap, kecepatan bantalan berulang kali naik dan turun.

What this symptom means

Pada beban nol dan satu posisi dial tetap, kecepatan bantalan berulang kali naik dan turun.

Likely Root Causes

  • Loose or dirty battery contacts
  • Battery protection is cycling
  • Dial signal is unstable
  • Controller or motor feedback fault

Quick Checks

  1. The sander holds a stable no-load speed at the selected setting.

Repair Preview

  1. Set O, remove the pack, and reseat a known-good battery after dry-cleaning contacts.
  2. Pilih satu pengaturan dial midrange dan jauhkan tangan dari dial.
  3. Jalankan tanpa beban selama satu menit sambil memegang alat dengan stabil.
  4. Jika kecepatan masih berfluktuasi, lepaskan paket dan gunakan layanan resmi.

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

Included in the full manual

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

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