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Tools Required for Transducer
Installation:
Variable speed electric drill with a chuck
capacity of 10 mm (3/8") or larger.
Hole saw or spade bit 19 mm (7/8") for
transom hole to route cable and connector
Chamfer bit or 6 mm (1/4") drill bit
Drill bit No. 28 or 4 mm (9/64")
Drill bit 3 mm (7/64")
Marine bedding/sealing compound
Note: Make sure your tooling is sharp and of
the correct diameter before proceeding.
**WARNING**
Do not cut or splice your phased-array
transducer cables or remove the 9-pin
connectors. Doing so will seriously
degrade the performance of your PC/180
and VOID YOUR WARRANTY.
Thru-hull Mounting
Take the following steps to mount each thru-hull
transducer:
1)
Drill a 1/8" pilot hole from inside the hull to
assure access to tighten the housing nut and
clearance for the transducer cables. If there is
any hull irregularity near the selected mount-
ing location, it may be desirable to drill from
the outside.
2)
Use a 1" hole saw and drill the hole from the
outside of the hull. Sand or clean the area
around the hole, inside and outside to insure
that the sealing compound will adhere prop-
erly to the hull. Select a marine grade bed-
ding/caulking compound and use according to
the instructions.
3)
Remove the bronze hex nut from the housing
and cables.
4)
Uncoil the two transducer cables and thread
them through the hole to the inside of the hull.
WARNING
DO NOT apply tension to the transducer
cables as this may sever internal connections.
Apply a 1/8" thick layer of sealant on the up-
per flat surface of the bronze housing and fair-
ing block (if used).
5)
From the outside of the hull, push the cables
and housing into the 1" hole. Twist the hous-
ing slightly to squeeze out excess sealant.
Carefully confirm that the transducer is
aligned so that the blunt rounded end (the
front) is pointed directly toward the front
of the boat.
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