USV Recovery
Power Down
- Navigate the USV back to the launch point using manual mode.
- Move the 3-Stage Switch (Left) to Disarm to disable the propellers before lifting the USV from the water.
- Lift the USV out of the water carefully, avoiding contact with the propellers.
- Power off the USV by pressing and holding the power button for approximately 2 seconds, then tapping the Power Off icon.
- Power off the H20 remote control using the same procedure.
Hull Inspection
After every survey session:
- Rinse the hull with fresh water to remove salt, sediment, and biological material
- Inspect the hull for cracks, impact damage, or wear
- Check the propeller guards for debris entanglement or damage
- Verify the battery compartment seal is intact and water has not entered the compartment
- Check the echo sounder transducer face for scratches or impact damage
Equipment Unloading
- Remove the propeller plugs and store them safely.
- Disconnect and remove the GNSS receiver from the quick release mount.
- Disconnect the serial cable and store it coiled loosely to prevent kinking.
- Open the battery compartment, disconnect the XT90S connector, and remove the battery.
- Remove the RF antennas by unscrewing them from the connectors.
Post-Operation Maintenance
| Task | Frequency |
|---|---|
| Fresh water rinse of hull and propellers | After every session |
| Battery charge to storage level (approximately 50%) | If storing more than 1 week |
| SD card data backup and format | After every survey project |
| Propeller inspection for chips or cracks | After every session |
| Hull inspection for stress cracks | Monthly or after impacts |
| RF antenna connector inspection | Monthly |
caution
Always store the lithium batteries at approximately 50% charge in a cool, dry place. Storing at full charge or fully depleted shortens battery life and may create a safety hazard.