Humminbird 858c Combo, Installation And Operation Manual

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18 Transom Mount - DualBeam PLUS ™
3. Put the pivot bolt through the assembly to hold it in position and
loosely install the nut, but do NOT tighten the nut at this time. Insert
the pivot arm assembly into the mounting bracket. Do NOT snap the
assembly closed, as you will need to access the mounting bracket in
the next step.
NOTE: If the pivot assembly is snapped closed over the mounting bracket, use a
flat head screwdriver or similar tool to gently pry the assembly away from the
mounting bracket.
4. Align the mounting bracket transducer assembly with the drilled
holes in the transom. With a 5/16" socket driver, mount the assembly
to the transom using the two #10 - 1" long screws provided.
NOTE: Make sure that the mounting
screws are snug, but do not fully
tighten the mounting screws at this
time to allow the transducer
assembly to slide for adjustment
purposes.
5. Snap the pivot arm down
into place.
6. Adjust the initial angle of the
transducer from back to front
by rotating the transducer
until the side seam on the
transducer is almost parallel
with the bottom of the boat,
one click at a time in either
direction.
Mounting the Assembly to the Transom
Inserting the Pivot Bolt Inserting the Pivot Arm Assembly into
the Mounting Bracket