5
¹⁄₂
"
1¹⁄₂
"
The running position of the transducer is now completely adjustable. Subsequent adjustment
may be necessary to tweak the installation after high speed testing. The mounting bracket
allows height and tilt adjustment, the pivot screws allow angle adjustment.
Use the supplied pivot angle template (2) for initial setting of the pivot angle to 3° to 5°. This
template also sets the distance below the hull dependent on hull type. Additionally the template
positions the bottom of the transducer
³⁄₁₆
" for fiberglass and
³⁄₈
" for aluminum hulls. Ensure that
you cut the template for your type of hull. Hand tighten the assembly to a firm tightness for initial
testing.
After the Humminbird unit is installed and the transducer installation is tested, it may be
necessary to adjust the depth and/or running angle of the transducer. First adjust the depth
below the hull in increments of
¹⁄₈
". If the top of the bracket slots are reached and high speed
operation is continuing to show gaps in the readout, adjust the running angle by moving the
trailing end of the transducer down in increments of
¹⁄₈
".
Hand tighten the mounting screws, do not apply excess torque.
The third and final mounting
screw should not be installed until all adjustments have been finalized.
After the final testing and adjustments have been completed use a
⁵⁄₃₂
" (4mm) bit, drill a third
hole at the top of the bracket and hand install the third mounting screw. Hand tighten all screws.
The pivot bolt may need to be tightened again after the plastic has conformed to the pressures
used for initial setup.
The transducer cable has a low profile connector that must be routed to the point where the
depthsounder is mounted. Every boat is different and there may be several ways to route the cable.
If you choose to pass the cable through the transom of the boat, a
⁵⁄₈
" hole must be drilled
above the water line. Fill this hole with silicone sealant, and use an escutcheon plate to dress the
entry hole. This will require two #8 x
⁵⁄₈
" screws and drilled holes of
⁹⁄₆₄
" diameter.
Remember that the transducer may give way in the pivot angle should an object be struck and
sufficient cable slack should be allowed for this movement. It is best to route the cable to the
3
Transducer Running Angle
Routing the Cable
Place on bottom of hull
Align with transom.
Cut and use for Fiberglass Hulls
Fiberglass
Aluminum
Transducer
Guide
¹⁄₂
"
Transducer bottom
Hull
Cut and use for Alum
inum Hulls
R
UNNING
P
OSITION
A
DJUSTMENT
R
OUTING THE
C
ABLE