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3. Force the pivot to the Up position to gain access to
the mounting screws.
4. Make sure that the transducer location has not
changed, then fully tighten the two mounting
screws (Figure 8a or 8b). Snap the pivot back
down.
5. Confirm that the pivot angle has not changed.
The transducer cable has
R
OUTING THE
a low profile connector
C
ABLE
that must be routed to the
point where the depthsounder will be mounted. Every
boat is different and there may be several ways to
route the cable. See Routing the Cable for instructions.
CAUTION! Do not cut or shorten the
transducer cable, and try not to damage
the cable insulation. Route the cable as far
as possible from any VHF radio antenna
cables or tachometer cables to reduce the
possibility of interference. If the cable is
too short, extension cables are available
to extend the transducer cable up to a
total of 50' (15 m). For assistance, contact
the Customer
Resource
www.humminbird.com or call 334-687-0503
for more information.
There is often a channel or conduit, used for other
wiring, on the inside of the boat, that you can use to
route the transducer cable.
1. If you choose to pass the cable through the
⁵⁄₈
transom of the boat, a
" (16 mm) hole must be
drilled above the waterline. Fill this hole with
marine-grade silicone sealant, and use the
supplied escutcheon plate to dress the entry hole.
⁵⁄₈
This will require two #8 x
" (16 mm) screws
⁹⁄₆₄
provided and drilled holes of
Figure 9.)
2. Remember that the transducer can pivot up to 90
degrees in the bracket. Allow sufficient cable
slack for this movement. It is best to route the
cable to the side of the transducer so that the
cable will not be damaged by the transducer
during rotation. Cable clamps are provided to
secure the cable to the transom using the same
type of screws as the escutcheon plate.
C
ONNECTING THE
C
ABLE TO THE
C
ONTROL
corresponding labels on the cable holder on the rear
of the Control Head. The slots are keyed to prevent
reversed installation, so be careful not to force the
connector into the holder.
2. Refer to your Control Head Installation Guide for
the correct procedure for installing the cable
connectors to the Humminbird Control Head.
I
NSTALLATION
T
ESTING
can initially confirm basic operation while the boat is
out of the water.
1. Press POWER once to turn the Control Head on.
There will be an audible chirp when the button is
pressed correctly. If the unit does not power-up,
make sure that the collector plug is fully seated in
the receptacle and that power is available.
Center at
2. If all connections are correct and power is available,
the Control Head will enter Normal operation.
Note: The transducer must be submerged in
water for reliable transducer detection.
3. If the bottom is visible on-screen with a digital
depth readout, the unit is working properly. Make
sure that the boat is in water greater than 2'
(.6 m) but less than the depth capability of the
unit, and that the transducer is fully submerged,
since the sonar signal cannot pass through air.
4. If the unit is working properly, gradually increase
the boat speed to test high-speed performance. If
" (3.5 mm). (See
the unit functions well at low speeds but begins to
skip or miss the bottom at higher speeds, the
transducer requires adjustment.
5. If you have the correct angle set on the transducer,
yet lose a bottom reading at high speed, adjust the
transducer to a lower depth in the water. If you
reach the top of the screw slots and continue to lack
high speed performance, increase the angle of the
transducer by lowering the back of the transducer in
increments of
Note: It is often necessary to make several
incremental transducer adjustments before
optimum high speed performance is achieved.
1. Insert the transducer
cable into the appro-
priate terminal slot. The
H
EAD
cable connectors are
labeled, and there are
Testing
should
performed with the boat in
the water, although you
¹⁄₈
" (4 mm); see Figure 10.
⁵⁄₈" (16 mm) Hole
Escutcheon
Plate
Cable Clamp
be
Mounting the
Transducer to the Transom
A
B
¹⁄₈
¹⁄₄
A =
" -
" (3 - 6 mm) Fiberglass Hulls
¹⁄₄
¹⁄₂
" -
" (6 - 13 mm) Aluminum Hulls
¹⁄₄
B =
" (6 mm)
Adjusting the Running Position
Installing the Third Mounting Screw
3
Routing the
Cable
Figure 9
Figure 10
Figure 11
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