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Installing the Transducer in a Fiberglass Hull

When installing the transducer in a cored fiberglass hull, you must cut the fairing block (

Cutting the Fairing Block

page 4

) and seal the exposed areas of the inner core with marine-grade fiberglass epoxy resin and allow it to 

cure before installing the transducer (

Preparing a Cored Fiberglass Hull, page 5

).

It is recommended that two installers complete these instructions, with one positioned outside the boat and one 
inside the boat.

NOTICE

You must apply marine sealant where necessary to prevent seepage and corrosion (

Applying Marine Sealant to a 

Thru-Hull Transducer, page 7

).

Push the transducer cable and stem   through the bottom half of the cut fairing block  .

Secure the M12 nut   to the bottom of the anti-rotation bolt   until no more than two threads are exposed 

between the M12 nut and the bottom of the fairing block.

Insert the anti-rotation bolt into the bottom half of the cut fairing block.
Apply marine sealant to the surface of the bottom half of the fairing block where it contacts the hull.
From outside the hull, push the transducer cable, stem, and anti-rotation bolt through the mounting holes in 

the hull, and push the bottom half of the fairing block firmly against the outside hull.
The fairing block and transducer must be parallel to the keel. The arrows on the fairing block and transducer 
must point to the front of the vessel so the transducer aligns with the vessel heading.

From inside the hull, pull the transducer cable, stem, and anti-rotation bolt through the top half of the fairing 

block.

Apply marine sealant to the surface of the top half of the fairing block where it contacts the hull.
Place the top half of the fairing block firmly against the inside hull.
Apply the included anti-seize compound to the exposed stem and anti-rotation bolt.
10 Use a 46 mm (1 

13

/

16

 in.) wrench or adjustable wrench to secure the stem with the included rubber 34 mm 

washer 

, nylon 34 mm washer  , and M33 flanged hex hull nut  .

NOTICE

To prevent damage, do not over-tighten the nut.
11 Use an 18 mm wrench or adjustable wrench to secure the top half of the fairing block to the anti-rotation bolt 

with the included 13.4 mm washer   and flanged M12 nut  .
NOTE: Do not over-tighten the nut.

12 Place the anti-rotation bolt cap over the end of the anti-rotation bolt on the underside of the fairing, and cover 

the cap with a smooth coating of sealant.

8

Summary of Contents for PANOPTIX PS70-TH

Page 1: ...e and to avoid damage to your boat you must install the transducer according to these instructions Read all installation instructions before proceeding with the installation If you experience difficul...

Page 2: ...rommets optional Water based anti fouling paint optional These additional items are needed depending on the installation For mounting in a cored fiberglass hull 18 mm 11 16 in drill bit 42 mm 1 5 8 in...

Page 3: ...300 mm from 6 to 12 in to the side of the centerline The transducer should not be mounted behind strakes struts fittings water intake or discharge ports or anything that creates air bubbles or causes...

Page 4: ...e deadrise angle of the hull at the mounting location Deadrise Angle page 3 3 Tilt your band saw table to match the deadrise angle and secure the cutting fence 4 Position the fairing block on the tabl...

Page 5: ...rrounding area outside the hull to reduce cracking of the gel coat 5 Use a 42 mm 1 5 8 in spade bit or hole saw to cut the stem hole through the outer skin inner skin and the core perpendicular to the...

Page 6: ...w location 8 Use a 13 mm 1 2 in drill bit to drill the anti rotation bolt hole perpendicular to the water surface 9 Sand and clean the inside of the holes and the area around the holes Preparing a Met...

Page 7: ...e cracking the fiberglass gel coat 4 Cut out the tape over the hole 5 Use a 33 mm 1 5 16 in spade bit or hole saw to cut the stem hole TIP Running the hole saw in reverse helps prevent damage to the f...

Page 8: ...ble stem and anti rotation bolt through the mounting holes in the hull and push the bottom half of the fairing block firmly against the outside hull The fairing block and transducer must be parallel t...

Page 9: ...reads are exposed between the M12 nut and the bottom of the fairing block 3 Insert the anti rotation bolt into the bottom half of the cut fairing block 4 Place the isolation bushings on the anti rotat...

Page 10: ...Preparing the Hull Pocket page 7 It is recommended that two installers complete these instructions with one positioned outside the boat and one inside the boat NOTICE You must apply marine sealant whe...

Page 11: ...s through the bulkhead or other parts of the boat Use black electrical tape to secure the cable where necessary to protect it from damage 2 Connect the power cable directly to the battery If it is nec...

Page 12: ...ter line Anti Fouling Paint To prevent corrosion on metal hulls and to slow the growth of organisms that can affect a vessel s performance and durability on both metal and fiberglass hulls you should...

Page 13: ...mild detergent 2 If the fouling is severe use a non metallic scouring pad or putty knife to remove growth 3 Wipe the transducer dry Specifications Dimensions W H Transducer 114 216 mm 4 5 8 5 in Fair...

Page 14: ...2023 Garmin Ltd or its subsidiaries support garmin com...

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