FM-01: 钻/起子在确认的BATTERY下无法启动

即使安装了确认的、充满电的V20 battery且方向按钮完全前进或后退，钻/起子仍无法启动。无motor声音、LED活动或夹头运动，工具无响应。

• Battery is discharged, temperature-protected, or internally failed
• Battery contacts are dirty or the pack is not fully seated on the rails
• Forward/reverse button is centered or not fully in a drive detent
• Trigger, contact block, wiring, brushes, motor, or switch has failed

1. lock, or perform live internal tests.

1. Push the direction button fully forward or reverse and make one controlled no-load trigger test with the chuck empty.
2. Cross-test the battery in a known-good V20 tool or approved charger, and replace only a pack that fails reciprocal testing.
3. If a proven battery still gives persistent zero response, remove it and route the sealed trigger, contact block, brush, motor, or wiring path to qualified service.
4. Center the direction button, remove the battery, and inspect the tool and pack for liquid, swelling, cracks, melting, or burning.
5. Dry-clean the accessible battery and tool contacts, then slide in a room-temperature fully charged V20 battery until the latch clicks.

这是完整维修手册中所含故障排除指南的预览。

• 完好V20battery完全就位，方向按钮完全前推或后推，工具无motor声音、LED响应或卡盘动作。静止状态持续。

  一个完好的V20battery已完全就位，方向按钮已完全 1. 将方向按钮置中，移除battery，检查工具和电池包是否有液体、膨胀、裂纹、熔化或燃烧迹象。

• 钻/起子在确认的BATTERY下无法启动

  FM-01 钻/起子在确认的 FM-09 BATTERY运行时间远短于预期

• 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。