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Maintenance
1. Soak ROV at least 1 hour after dive, then let the motors run in fresh water at least 10 minutes, then
rinse ROV with fresh water. Air dry and avoid direct sunlight (for more information, please check Motor
Maintenances the Maintenance Guide in page 29)
2. Keep every connector (port and plug) dry and clean at all time. Put on the protective caps when not
connected. The salt and moisture may cause corrosion on the connectors. Clean the plug with running
fresh water and dry with air blow gun or dust blower.
3. Check the propellers after every dive. Make sure NO entanglement, i.e. seaweed or fishing lines. Turn
on the ROV (See the Preparation & Connection Section, page 6-9) and check the thruster and test
movement and rotation.
4. Use the integrated self-checking program (FIFISH App/Help/Machine self-check) if you have spot
malfunction part or parts after dives, contact your local services center for help. For more information
about FIFISH Authorized Services Centers
https://www.qysea.com/support/repair-center/
5. Clean sand or mud if necessary. Soak the ROV inside the clean fresh water at least 1 hour. Shake
ROV tail down or head down position, let sand washed out through the venting holes. Wash until the
clean water drips out.
6. Check the tether on regular basis, replace the tether if break or damage appears.
7. Store ROV and RC in dry and cool environment (Temperature range: 5°C to 25°C or 41°F to 77°F).
8. For long-term storage, keep 50% to 60% of battery level. Charge and discharge every 90 days to keep
the activation of Lithium battery.
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