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Northstar Explorer 657 Installation and Operation Manual80
18-6 Installation: Sonar transducer
Either:
• Fit the transom mount sonar transducer
supplied, following the instructions in the
Transom Mount Transducer Installation
Manual supplied with the 657.
• For enhanced performance, fit an optional
through hull dual frequency sonar transducer
and through hull speed/temperature
transducer. Contact the nearest Northstar
dealer for more information.
Connect the transducer to the blue 657
connector; tighten the locking collar.
During setup
a set Sonar to
(see section 17-1)
b set up the sonar options (see section 17-3)
!
WARNING
Do not install plastic through hull transducers
in solid wooden hulls. Leakage through the
hull may result.
Do not install bronze transducers in metal
hulls. This will cause electrolytic corrosion that
may result in damage to the hull or transducer.
Blue
Sonar cable
18-7 Installation: Northstar petrol/gasoline sensors
Fit the optional petrol/gasoline fuel kit following
the instructions supplied with the kit.
Note:
SmartCraft™ engines have fuel flow sensors,
therefore Northstar fuel sensors are not
required as well.
For dual engines, fit two kits.
Wire the 657 for auto power (see section
18-4).
An optional GPS/fuel AIS cable is required.
GPS antenna (optional)
Fuel sensor cable
Yellow
Yellow
GPS/fuel AIS cable
White
During setup:
a set up Auto power off (see sections 2-2 and
17-1)
b set the fuel data (see section 17-5)