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Maintenance
Your Humminbird fishfinder is designed to provide years of trouble free operation
with very little maintenance. Use the following procedures to ensure your
Humminbird continues to deliver top performance.
Control Head Maintenance
It is important to consider the following precautions when using your Humminbird
control head:
• Chemicals, such as those found in bug spray and sunscreen, may cause
permanent damage to the control head screen. Such damage is not covered
by the warranty.
• NEVER leave the control head in a closed car or trunk. The high temperatures
generated in hot weather can damage the electronics.
Use the following information to keep the control head and screen clean.
• Screen: To clean the control head screen, use a mild soap (such as a non-
abrasive liquid hand soap) and warm water. Wipe the screen dry with a soft
cloth. Be careful to avoid scratching the screen. If water spots remain, use a
solution of water and vinegar.
WARNING! Do not use a chemical glass cleaner on the screen. Chemicals in
the solution may cause cracking in the lens of the unit.
NOTE: Do not wipe the screen while dirt or grease is on the screen.
• Control Head: If the control head comes into contact with salt spray, wipe the
affected surfaces with a cloth dampened with fresh water.
Maintenance
46
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