Jetter Wu, 10668, 2016/06/27
Jetter Wu, 10668, 2016/06/27
Jetter Wu, 10668, 2016/06/27
Jetter Wu, 10668, 2016/06/27
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.
Non-cored/Fiberglass Boat Hull Installation
Instructions
Thru-Hull Transducer in a Non-cored/Fiberglass 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
Non-Cored or Fiberglass Hull
Before you can drill holes for the anti-rotation bolts, you must drill the hole for
the transducer stem, and you must cut the fairing block (page 3).
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 when you are using a fairing block to
mount the transducer on a boat that does not have a cored fiberglass 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 and hull at the stem hole location, from
outside the hull.
The hole must be perpendicular to the water surface.
4
If the vessel has a fiberglass hull, place masking tape over the pilot hole
and surrounding area outside the hull to prevent damage to the fiberglass.
5
If you taped over the pilot hole, use a utility knife to cut out the hole in the
tape.
6
While holding a 25 mm (1 in.) spade bit plumb, cut a hole from outside the
hull at the stem hole location.
The hole must be perpendicular to the water surface.
7
Sand and clean the area around the hole.
8
While holding a drill with a 9 mm (
3
/
8
in.) bit plumb, drill the anti-rotation
bolt holes through the hull.
The holes must be perpendicular to the water surface.
9
Sand and clean the area 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 with 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 the transducer in a cored fiberglass hull, avoid over-
tightening the nuts to prevent damaging the hull.
1
If the anti-rotation bolts
À
are installed on your transducer, remove them.
2
Apply marine sealant at the base of the anti-rotation bolts and transducer
stem
Á
.
3
Seat the transducer housing firmly within the fairing block
Â
recess.
4
Apply marine sealant to the face of the fairing block that must contact the
hull.
5
Apply marine sealant to the face of the backing block
Ã
that must contact
the inner hull.
6
From outside the hull, insert the transducer cable
Ä
and transducer stem
through the mounting hole.
7
From inside the hull, slide the backing block onto the transducer stem and
seat it firmly against the inner hull.
The fairing and transducer must be parallel to the keel.
8
From inside the hull, apply the included anti-seize compound to the
exposed transducer stem and anti-rotation bolts.
9
From inside the hull, use slip-joint pliers or a crescent wrench to secure the
backing block to the transducer stem with the included 35 mm hull nut
Å
,
rubber 24 mm washer, and nylon 26 mm washer
Æ
.
Do not over-tighten the hull nut.
10
From inside the hull, use slip-joint pliers or a crescent wrench to secure the
backing block to the anti-rotation bolts with the included M8 nuts
Ç
and
8 mm washers
È
.
Installation Instructions
5
Jetter Wu, 10668, 2016/06/27
