| Vibration – rough path (15 min) | Cabling + Connectors | Forest/gravel loop; inspect strain relief |
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| Water splash | Display + Switches | Light rain / spray; functional check |
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| Thermal drift | Controller enclosure | 0–30 °C cycle; no thermal shutdown |
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| Fastener retention | Mounting brackets | Torque mark; recheck after ride |
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| Emergency stop | Kill-switch + brake cut-off | Trigger under load; system halts safely |
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