Step 3: Install The Transducer - Garmin 400C Owner's Manual

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Step 3: Install the Transducer

Proper transducer installation is key to getting the best performance
from your fishfinder. 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, because 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.
4
Assembling the Transducer
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 flat 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 flat washer on the exposed end.
Install the 10-32 lock nut finger tight. You can tighten the
transducer further after installation on the boat.
Back of the transducer
Cable tie slot
Fishfinder 400C Owner's Manual