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42 GPSMAP
®
400 Series Owner’s Manual
InStallInG the unIt
Step 3: InstallInstall the Transducer
Proper transducer installation is key to getting the best performance
from your unit. If the transducer lead is too short, extension cables
are available from your Garmin dealer. Coil and secure any excess
cable.
CAUTION: DO NOT cut the transducer lead or any part of
the transducer cable. Cutting the transducer cable voids your
warranty. The cable cannot be spliced and connected to any
existing (Garmin or non-Garmin) transducer cables.
The following pages contain tips and basic installation instructions
for some popular transducers. Detailed installation instructions are
provided in the transducer kits. Some transducers might have to be
installed by a professional marine installer.
To assemble the transducer:
assemble the transducer:
1. Insert the rubber washer and plastic spacer into the
transducer at the same time. DO NOT lubricate the rubber
washer.
2. Route the cable toward the back of the transducer. Slide the
transducer into the transducer mount.
3. Place a 5 mm at washer on the 10-32 x 1.75" screw, and
insert the screw through the transducer mount, spacer, and
rubber washer.
4. Place the remaining 5 mm at washer on the exposed end.
Install the 10-32 lock nut nger tight. You can tighten the
transducer further after installation on the boat.
Back of the transducer
Cable tie slot