Jetter Wu, 10668, 2016/06/27
Jetter Wu, 10668, 2016/06/27
Jetter Wu, 10668, 2016/06/27
Jetter Wu, 10668, 2016/06/27
Do not over-tighten the M8 nuts.
11
Before the sealant hardens, remove all excess sealant on the outside of
the fairing block and exterior hull to ensure smooth water flow over the
transducer.
Thru-Hull Transducer in a Non-cored/Fiberglass Hull without a
Fairing Block
If the deadrise angle of your mounting location does not exceed 5°, you can
mount the device without a fairing block.
Drilling the Transducer Stem and Anti-Rotation Bolt Holes Using a
Template
WARNING
The device must be installed with at least one of the included anti-rotation
bolts. Failure to do so could result in the device rotating while the boat is
moving and could cause damage to your vessel.
You should follow these instructions if you are not using a fairing block or
isolator plate to mount your transducer.
1
Trim the included transducer template.
2
Select a mounting location without surface irregularities or obstructions.
3
Using the template, mark the location of the stem hole and anti-rotation
bolts.
4
While holding a 25 mm (1 in.) spade bit plumb, drill the transducer stem
hole from outside the hull.
The hole must be perpendicular to the water surface.
5
While holding a drill with an 9 mm (
3
/
8
in.) bit plumb, drill the anti-rotation
bolt holes from outside the hull.
The holes must be perpendicular to the water surface.
6
Sand and clean the inner skin, core, and outer skin around the holes.
Applying Marine Sealant to a Thru-Hull Transducer
You must apply marine sealant to the transducer to ensure a tight, waterproof
seal between the fairing block and the hull. Do not apply sealant directly to the
stem or anti-rotation bolts.
Apply marine sealant
À
around the base of the stem and anti-rotation
bolts on the transducer.
Installing the Transducer without a Fairing Block
It is recommended that two installers complete these instructions, with one
positioned outside the boat and one inside the boat.
NOTE: When installing a transducer in a non-cored fiberglass hull, avoid over-
tightening the nuts to prevent damaging the hull.
1
Apply marine sealant to the base of the anti-rotation bolts and transducer
stem
Á
, and to the sides of the transducer plate
Â
that must contact the
hull.
2
From outside the hull, insert the transducer through the mounting hole and
seat it firmly against the hull.
3
From inside the hull, apply the included anti-seize compound to the
exposed transducer stem and anti-rotation bolts.
4
From inside the hull, use slip-joint pliers or a crescent wrench to secure the
included 35 mm hull nut
Ã
, 26 mm nylon washer
Ä
, and 24 mm rubber
washer
Å
to the transducer stem.
Do not over-tighten the hull nut.
5
From inside the hull, use slip-joint pliers or a crescent wrench to secure the
included M8 nuts
Æ
and 8 mm nylon washers to the anti-rotation bolts.
Do not over-tighten the M8 nuts.
6
Before the sealant hardens, remove all excess sealant on the outside of
the exterior hull to ensure smooth water flow over the transducer.
Metal Boat Hull Installation Instructions
Thru-Hull Transducer in a Metal Hull with a Fairing Block
If the deadrise angle of your mounting location exceeds 5°, you should use a
fairing block to mount the device.
Drilling the Transducer Stem Hole and the Anti-Rotation Bolt Holes in a
Metal Hull
You should follow these instructions when you are using a fairing block to
mount the transducer on a boat that has a metal hull.
1
Select a mounting location without surface irregularities or obstructions.
2
Using the template, mark the location of the stem hole and anti-rotation
bolts.
3
Drill a 3 mm (
1
/
8
in.) pilot hole through the ull at the stem hole location,
from outside the hole.
The hole must be perpendicular to the water surface.
6
Installation Instructions
Jetter Wu, 10668, 2016/06/27