Garmin Ultra High-Definition Scanning Sonar System TransomTrolling Mount Trans - Page 2

Installing the Transom-Mount Hardware

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2 Attach the mount to the bracket with the bolt , rubber washer , flat washer , and lock nut . NOTE: The bolt should be tight enough to hold the transducer in place when the boat moves at high speed, but loose enough to allow the transducer to pivot out of the way if the transducer hits an obstruction. Installing the Transom-Mount Hardware NOTICE If you are mounting the bracket on fiberglass with screws, it is recommended to use a countersink bit to drill a clearance counterbore through only the top gel-coat layer. This will help to avoid cracking in the gel-coat layer when the screws are tightened. The cables connected to the transducer should not be cut, because cutting the transducer cables voids your warranty. 1 Cut out the template. 2 With the template aligned vertically on the transom at the installation location (Mounting Consideration, page 1), place the bottom corner of the template on the edge of the transom. 3 Mark the center location of the two holes of the template. 4 Remove the template from the transom. 5 Wrap a piece (7/10 in.) from of tape around the point of the a 4 bit, mm (5/32 in.) bit to avoid drilling at 18 mm the pilot holes too deep. 6 If you are installing the bracket on fiberglass, place a piece of tape over the pilot-hole location to reduce cracking of the gel coat. 7 Using the 4 18 mm (7/10 mm in.) (5/32 in.) bit, drill the deep at the marked pilot holes locations. approximately 8 Apply marine sealant to the included 20 mm screws, and attach the transducer assembly to the transom. 9 Route the cable under the transom mount cable hook. 10If you must route the cable through the transom, choose a pilot-hole location well above the waterline and mark it. 11Place a cable clamp on the transducer cable, approximately halfway between the transducer and the top of the transom or the pass-through pilot hole. 12Mark the pilot-hole location for the cable clamp, and using a 3.2 (3/8 mm (1/8 in.) in.) deep. bit, drill a pilot hole approximately 10 mm 13Apply marine sealant to the included 12 mm screw, and attach the cable clamp to the transom. 14If you marked a pilot hole in step 7, choose the appropriate drill bit to drill a pass-through hole completely through the transom: • If you have the 4-pin cable, use a 16 mm (5/8 in.) drill bit. • If you have the 8-pin or 12-pin cable, use a 25 mm (1 in.) drill bit. 15Route the transducer cable to the sounder: • If you are routing the cable using a pass-through hole, push it through the pass-through hole, and install the cable-entry cover (Installing the Cable-Entry Cover, page 2). • If you are not routing the cable using a pass-through hole, route the cable up and over the top of the transom. You should avoid routing the cable close to electrical wires or other sources of electrical interference. Installing the Cable-Entry Cover If you routed the cable through the transom after you installed the transducer, you should install the cable-entry cover to keep water from entering your boat. 1 Place the cable-entry cover over the hole and the cable, with the opening pointing downward, and mark the location of the two pilot holes. 2 Remove the cable-entry cover, and, using a bit, drill the pilot holes approximately 10 mm 3.2 (3/8 mm in.) (1/8 in.) deep. 3 Fill the pass-through hole with marine sealant so it covers the cable completely and there is excess sealant around the hole and the cable. 4 Place the cable-entry cover over the hole and the cable, with the opening pointing downward. 2

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2
Attach the mount to the bracket
with the bolt
, rubber
washer
, flat washer
, and lock nut
.
NOTE:
The bolt should be tight enough to hold the
transducer in place when the boat moves at high speed, but
loose enough to allow the transducer to pivot out of the way if
the transducer hits an obstruction.
Installing the Transom-Mount Hardware
NOTICE
If you are mounting the bracket on fiberglass with screws, it is
recommended to use a countersink bit to drill a clearance
counterbore through only the top gel-coat layer. This will help to
avoid cracking in the gel-coat layer when the screws are
tightened.
The cables connected to the transducer should not be cut,
because cutting the transducer cables voids your warranty.
1
Cut out the template.
2
With the template
aligned vertically on the transom at the
installation location (
Mounting Consideration
, page 1
), place
the bottom corner
of the template on the edge of the
transom.
3
Mark the center location of the two holes of the template.
4
Remove the template from the transom.
5
Wrap a piece of tape around a 4 mm (
5
/
32
in.) bit at 18 mm
(
7
/
10
in.) from the point of the bit, to avoid drilling the pilot
holes too deep.
6
If you are installing the bracket on fiberglass, place a piece of
tape over the pilot-hole location to reduce cracking of the gel
coat.
7
Using the 4 mm (
5
/
32
in.) bit, drill the pilot holes approximately
18 mm (
7
/
10
in.) deep at the marked locations.
8
Apply marine sealant to the included 20 mm screws, and
attach the transducer assembly to the transom.
9
Route the cable under the transom mount cable hook.
10
If you must route the cable through the transom, choose a
pilot-hole location well above the waterline and mark it.
11
Place a cable clamp on the transducer cable, approximately
halfway between the transducer and the top of the transom or
the pass-through pilot hole.
12
Mark the pilot-hole location for the cable clamp, and using a
3.2 mm (
1
/
8
in.) bit, drill a pilot hole approximately 10 mm
(
3
/
8
in.) deep.
13
Apply marine sealant to the included 12 mm screw, and
attach the cable clamp to the transom.
14
If you marked a pilot hole in step 7, choose the appropriate
drill bit to drill a pass-through hole completely through the
transom:
•
If you have the 4-pin cable, use a 16 mm (
5
/
8
in.) drill bit.
•
If you have the 8-pin or 12-pin cable, use a 25 mm (1 in.)
drill bit.
15
Route the transducer cable to the sounder:
•
If you are routing the cable using a pass-through hole,
push it through the pass-through hole, and install the
cable-entry cover (
Installing the Cable-Entry Cover
,
page 2
).
•
If you are not routing the cable using a pass-through hole,
route the cable up and over the top of the transom.
You should avoid routing the cable close to electrical wires or
other sources of electrical interference.
Installing the Cable-Entry Cover
If you routed the cable through the transom after you installed
the transducer, you should install the cable-entry cover to keep
water from entering your boat.
1
Place the cable-entry cover
over the hole and the cable,
with the opening pointing downward, and mark the location of
the two pilot holes.
2
Remove the cable-entry cover, and, using a 3.2 mm (
1
/
8
in.)
bit, drill the pilot holes approximately 10 mm (
3
/
8
in.) deep.
3
Fill the pass-through hole with marine sealant so it covers the
cable completely and there is excess sealant around the hole
and the cable.
4
Place the cable-entry cover over the hole and the cable, with
the opening pointing downward.
2