Humminbird ONIX8 Installation Manual page 19

3
|
Attach the Transducer to the Bracket
1. Slide the assembled transducer into the metal bracket from the bottom, aligning the
large hole at the top of the bracket with the hole in the pivot.
2. Insert the headed pin through the pivot holes in the bracket and pivot. The headed pin
can be inserted from either side of the bracket.
3. Place the nylon washer over the opposite end of the headed pin. Place the stainless
washer over the 1/4–20 x 5/8" screw threads, then insert into the opposite end of the
headed pin and finger tighten only. The screw has a thread locking compound on the
threads to prevent loosening, and should NOT be fully tightened until all adjustments
are made.
4
|
Adjust the Running Position
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 machine screws allow angle adjustment.
NOTE: Side Imaging is best performed at boat speeds from 2 to 6 mph. If the boat is
stationary, the same information is displayed over and over. If the boat is moving too
quickly, there will be gaps between the strips of information. The best boat speed to use
will depend on the side range selected. Slower speeds are good for longer ranges, while
faster speeds can be used at shorter ranges.
1. Adjust the angle of the transducer body first, so it is parallel with the hull of the boat.
Fully tighten the two machine screws using the supplied Allen wrench. Access the
machine screws through the lower holes in the side of the mounting bracket.
2. Next, adjust the height of the assembly so the face of the transducer is 1/8" to 1/4"
beneath the bottom of the transom, and fully tighten the three mounting screws. To
access the mounting screws, pivot the transducer assembly up into the bracket as
shown in the illustration Tightening the Mounting Screws.
CAUTION! Be careful not to alter the running angle, as some force is necessary to pivot
the assembly.
3. If access to the top mounting hole is not possible due to the selected height of the
transducer, fully tighten the two lower screws. Remove the headed pivot pin and the
transducer assembly, tighten the top screw, and then reassemble.
4. Confirm that the pivot angle has not changed and that all mounting screws are fully
tightened.
Proceed to the section Route the Cables.
15
Attaching the Transducer
to the Bracket
allen wrench metal bracket
nylon washer
(fits over headed pin)
screw
stainless washer
(fits over screw threads)
Tightening the Machine Screws
allen wrench
machine screw holes
Tightening the Mounting Screws
Pivot the
transducer
assembly up
to tighten the
mounting
screws.
Install the Side Imaging Transducer
headed pin
pivot