Plastimo ECHOFISH 820, Installation & Operation Manual

Page: 13 / 383

Echofish 820 – Installation & Operation manual
13
Warning: contact your boat dealer to get the full specifications of
your boat. Never try to remove any material from the inner hull be-
fore you completely know about the its composition
Choose an appropriate position in the inner hull. Remove
the inner fiberglass layer as well as the flotation material.
Epoxy the transducer to the outer layer of fiberglass; press
the transducer with a slight twisting motion to purge any
trapped air from underneath.
After the epoxy cures for 24hours, (make sure the epoxy is
solidified) the remaining space can be filled in with resin.
The installation of the transducer is then finished. With the
shoot-thru-hull installation, the transducer will not be ad-
justed as soon as it is fixed. So, testing before final in-
stallation is necessary.
2.2 Finding a better mounting location
a- Fill the hull with water to submerge the transducer.
b- In the sump of the boat, place the transducer at the iden-
tified mounting position, face down. You can use heavy ob-
jects to keep the transducer in position.
c- Turn the display unit on, run the boat where water depth
is about 20 feet to test whether the sonar display is normal
(if needed, please adjust the sensitivity and depth range). If
not, check the connection between the display unit and the
transducer.
d- Run the boat at various speeds to see ho w t he d i s-
p l ay u n i t b e ha v e s . If one of the following phenomena
appears: sonar strength obviously decreasing, loss of signal,
bottom missing, then note the speed and choose another location
for the transducer. Repeat the operation until you get the best
mounting location.