Installation Instructions

ManualsBrandsFuruno ManualsTransducersFuruno 555-SLTD/20

17-364-01 rev. 05 03/16/11

Thru-Hull, without Valve

Tilted Element

™

Transducer

Tilt Angles: 0

, 12

, 20

Models: B60, B75H, B75L, B75M, B619

P19, SS60, SS565, SS619

U.S. Patent No. 7,369,458. UK Patent No. 2 414 077. U.S. Patent Pending

Applications

• Plastic housing recommended for fiberglass or metal hulls only.

Never install a plastic housing in a wood hull since swelling of

the wood can fracture the plastic.

• Bronze housing recommended for fiberglass or wood hulls.

Never install a bronze housing in a metal hull, because

electrolytic corrosion will occur.

• Stainless steel housing compatible with all hull materials.

Recommended for metal hulls to prevent electrolytic corrosion

provided the stainless steel housing is isolated from the metal hull.

Match Tilt Angle of Transducer to Deadrise

Be sure the tilt angle of your transducer model matches the

deadrise angle of your boat at the mounting location. The tilt angle

is printed on the top of the transducer (see Figure 1). To measure

the deadrise angle of your hull at the selected mounting location,

use an angle finder or a digital level (see Figure 2).

• 0° models—For hull deadrise angles from 0° to 7°

• 12° models—For hull deadrise angles from 8° to 15°

B75L-12°—For hull deadrise angles from 0° to 24°

B75H-12°—For hull deadrise angles from 6° to 15°

B75M-12°—For hull deadrise angles from 6° to 15°

• 20° models—For hull deadrise angles from 16° to 24°

Figure 2. Deadrise angle of the hull

transom view

deadrise angle

slope of hull

parallel to waterline

Figure 1. Top of transducer

TILT

KEEL

TILT

KEEL

P19

12° model 20° model

INSTALLATION INSTRUCTIONSOWNER’S GUIDE &

Record the information found on the cable tag for future reference.

Part No._________________Date___________Frequency________kHz

AIRMAR®

Follow the precautions below for optimal product

performance and to reduce the risk of property damage,

personal injury, and/or death.

WARNING: Always wear safety goggles and a dust

mask when installing.

WARNING: Immediately check for leaks when the

boat is placed in the water. Do not leave the boat

unchecked for more than three hours. Even a small

leak may allow considerable water to accumulate.

WARNING: B619 and SS619—Do not use the spacer

if there is insufficient space to tighten the nut, or it is

within 11mm (1/2") of the top of the housing.

WARNING: Stainless steel housing in a metal hull—

Be sure the washer contacts the hull. Do not tighten

the hull nut with the washer against the isolation

bushing, as the housing will not be firmly installed. If

necessary, sand the isolation bushing until the washer

rests against the hull.

CAUTION: The arrow on the top of the transducer

must point toward the keel or centerline of the boat.

This will align the angle of the element inside the

transducer with the deadrise angle of your hull.

CAUTION: Never pull, carry, or hold the transducer by

its cable; this may sever internal connections.

CAUTION: Never install a metal transducer on a

vessel with a positive ground system.

CAUTION: Plastic housing—Never use a fairing with

a plastic housing; the protruding sensor would be

vulnerable to damage from impact.

CAUTION: Metal housing—Never install a metal

housing on a vessel with a positive ground system.

CAUTION: Stainless steel housing in a metal hull—

The stainless steel housing must be isolated from a

metal hull to prevent electrolytic corrosion. Use the

isolation bushing supplied.

CAUTION: Never use solvents. Cleaners, fuel,

sealants, paint, and other products may contain strong

solvents, such as acetone, which attack many

plastics, greatly reducing their strength.

IMPORTANT: Read the instructions completely

before proceeding with the installation. These

instructions supersede any other instructions in your

instrument manual if they differ.

Summary of content (4 pages)

PAGE 1
OWNER’S GUIDE & INSTALLATION INSTRUCTIONS Thru-Hull, without Valve Tilted Element™ Transducer Record the information found on the cable tag for future reference. Part No._________________Date___________Frequency________kHz 17-364-01 rev. 05 03/16/11 Tilt Angles: 0°, 12°, 20° Models: B60, B75H, B75L, B75M, B619 P19, SS60, SS565, SS619 U.S. Patent No. 7,369,458. UK Patent No. 2 414 077. U.S.
PAGE 2
Identify Your Model • The water flowing under the hull must be smooth with a minimum of bubbles and turbulence (especially at high speeds). The model name is printed on the cable tag.
PAGE 3
P19 housing B60, B75, or SS60 B619 or SS619 housing wrench flat (2) wrench flat (2) housing housing hull nut hull nut hull nut spacer washer washer washer hull marine sealant on flange and sidewall of housing wrench flat (2) hull hull marine sealant on flange and sidewall of housing marine sealant on flange and sidewall of housing Figure 4. Bedding and installing in solid fiberglass or wood hull Copyright © 2006 Airmar Technology Corp.
PAGE 4
Alternatively, a hollow or solid cylinder of the correct diameter can be coated with wax and taped in place. Fill the gap between the cylinder and hull with casting epoxy. After the epoxy has set, remove the cylinder. 9-12 mm (3/8-1/2") larger than the hole through the hull’s outer skin pour in casting epoxy inner skin core hull thickness 6. Sand and clean the area around the hole, inside and outside, to ensure that the marine sealant will adhere properly to the hull.