General Maintenance; Troubleshooting - MINN KOTA ULTERRA Owner's Manual

GENERAL MAINTENANCE

• After use, the entire motor should be rinsed with freshwater. This series of motor is not equipped for saltwater exposure.
• The composite shaft requires periodic cleaning and lubrication for proper retraction and deployment. A coating of an aqueous-based
silicone spray will improve operation.
• The propeller must be inspected and cleaned of weeds and fishing line after every use. Fishing line and weeds can get behind the
prop, damage the seals and allow water to enter the motor.
• Verify that the prop nut is secure each time the motor is used.
• To prevent accidental damage during transportation or storage, disconnect the battery whenever the motor is off the water.
For prolonged storage, lightly coat all metal parts with an aqueous-based silicone spray.
• For maximum battery life, recharge the battery(s) as soon as possible after use. For maximum motor performance, restore battery to
full charge prior to use.
• Keep battery terminals clean with fine sandpaper or emery cloth.
• The propeller is designed to provide weed-free operation with very high efficiency. To maintain this top performance, the leading edge
of the blades must be kept smooth. If they are rough or nicked from use, restore to smoothness by sanding with fine sandpaper.
• Keep the Foot Pedal well dry and clean. Debris that gets in the Foot Pedal can cause interference of pedal operation. It is
recommended to use compressed air to clean the Foot Pedal after each use.

TROUBLESHOOTING

1. Motor fails to run or lacks power:
• Check battery connections for proper polarity.
• Make sure the battery is charged.
• Make sure terminals and wires are clean and corrosion-free. Use fine sandpaper or emery cloth to clean terminals.
• Check circuit protection devices.
• Check battery water level. Add water if needed.
2. Motor loses power after a short running time:
• Check battery charge. If low, restore to full charge, or replace.
3. You experience prop vibration during normal operation:
• Remove and rotate the prop 180°. See removal instructions in the "Propeller Replacement" section. Replace prop if worn.
4. Experiencing interference with your fish finder:
• You may, in some applications, experience interference in your depth finder display. We recommend that you use a separate
deep-cycle marine battery for your trolling motor and that you power the depth finder from the starting/cranking battery. If
problems persist, call our customer service department at 1-800-227-6433.
5. Motor contacts an object while trimming, causing an audible tone:
• Reverse the direction of trimming to clear motor from obstruction.
6. Motor contacts an object while stowing, causing an audible tone:
• Reverse the current cycle to clear the motor from the obstruction. Reverse the stow/deploy action with the wireless remote, One-
Boat Network app, or by pressing the Stow/Deploy button on the Foot Pedal.
©2023 Johnson Outdoors Marine Electronics, Inc.
GENERAL MAINTENANCE
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