Raymarine Realvision RV-220P Installation Instructions Manual page 14

Important: Do NOT overtighten. Overtightening can cause damage to the hull which may result in
water leaking into the vessel.
30. Apply a small amount of marine grade sealant to the inside of the anti-rotation bolt cap.
31. Fit the anti-rotation bolt cap by pressing it firmly into the hole in the bottom face of the transducer.
Ensure that the anti-rotation bolt cap (1), is oriented correctly, with the embossed "BOW" arrow
pointing towards the temperature sensor in the base of the transducer (2).
32. To prevent aeration around the transducer, remove any excess sealant on the outside of the hull.
33. Ensure that the sealant has fully cured before putting the vessel back in the water.
Refer to the sealant manufacturer's instructions for curing times.
34. Once the vessel has been put back in the water check for leaks around the transducer
immediately.
Important: Do NOT leave your vessel in the water unchecked for more than a few hours after first
installing the transducer. Very small leaks may not be immediately obvious, and considerable bilge
water could accumulate over the course of a day, or overnight.
35. Check for leaks at regular intervals after installation until you are satisfied that there are no leaks.
36. Ensure checking for leaks around the transducer is added to your routine vessel maintenance
schedule.
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