6. Seal Cable in
Stuffing
lbbe:
Slide the rubber compression bush-
ing, compression washers, and the
packing nut down the
transducer
cable
to the
stuffing
tube (see Figure 5).
Make sure the rubber bushing fits
se-
curelyinto the machined upperpart of
the
stufling
tube. Tighten the packing
nut. Clean up all excess sealant mate-
rial inside the hull.
7. Plug the bolt holes.
To minimize turbulence on the
sur-
face of the transducers, a white Styrofoam plug material is supplied which
fits into the transducer mounting holes. Cut the Styrofoam to length so that,
when installed, each plug is recessed
5
to 7 mm
(3/16”
to
5/16”)
below the
surface of the housing. Push these Styrofoam plugs into the holes and
smooth out the surface using caulking. Level out and remove any excess
caulking to ensure smooth water flow over the transducer.
8. Route the cable to the echo sounder.
Be
very
careful
not to tear the cable jacket when passing the cable through
bulkheads, etc. To reduce electrical interference, keep the transducer cable
separated from electrical wiring and other sources of electrical interfer-
ence. To prevent damage, secure the transducer cable in place using tywraps
or lacing twine.
9. Attaching the plug.
The wires of the cable must now be soldered to the 5 pin transducer
connector, packaged with the echo sounder using the color code shown in
the drawing.
10 05
0
20
’
04
30
COLOR
PIN
P/N
5JcAAooo11
HS-21P-5.5 PIN
YELLOW
1
.
I
(SOLDER SIDE)
=Qdii
s
BLUE
SHIELDS
;
-I”,‘,”
‘1;;:
;rz
0
:s:
:-:
BLACK
4
0
<a:
z:
BROWN
-7
’
5
TRANSDUCER
INSTALLATION 29
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