Onwa KF-667 User Manual download pdf (Page 29)

4.1.3 Cleaning

Keep the equipment clean and dry at all times. Dust or loose dirt should be wiped off with a soft,

dry cloth. Do not use chemical cleaners to clean the display unit-they can remove paint or

markings.

4.1.4 Maintenance of the transducer

Marine life on the transducer face will result in gradual decrease in the sensitivity. Check the

transducer face for cleanliness each time the boat is hauled out of the water. Carefully remove

any marine life with a piece of wood or fine sandpaper.

4-2

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Onwa KF-667 User Manual Page 29