Installation Instructions

ManualsBrandsFuruno ManualsTransducersFuruno 525ST-PWC

17-247-03 rev. 04 12/14/10

max. no speed sensor:

191mm (7-1/2")

Transom-Mount Transducer

or TRIDUCER

Multisensor

with Integral Release Bracket

Model P66

U. S. Patents: 5,606,253; 5,719,824

Applications

• Not recommended for boats with large inboard engine(s)

• Not recommended for stepped hull

• Good operation up to 44kn (50MPH)

• Vertically orients sound beam on hull with deadrise angle up to 30°

• Adjusts to transom angles from 2

° –22°

• Bracket protects sensor from frontal impact only

Tools & Materials

Safety goggles

Dust mask

Scissors

Masking tape

Electric drill

Drill bits:

Bracket holes 4mm, #23, or 9/64"

Transom hole (optional) 21mm or 13/16"

Cable clamp holes 3mm or 1/8"

75 mm (3")

minimum beyond

swing radius

Figure 1. Headroom required on a stepped transom

min.: 127mm (5")

Angle finder

Marine sealant (suitable for below waterline)

Screwdrivers

Straight edge

Pencil

Grommet(s) (some installations)

Cable ties

Water-based anti-fouling paint (mandatory in salt water)

Mounting Location

CAUTION: Do not mount in an area of turbulence or bubbles:

near water intake or discharge openings; behind strakes, struts,

fittings, or hull irregularities

CAUTION: Avoid mounting the sensor where the boat may be

supported during trailering, launching, hauling, or storage.

• For the best performance, the sensor must be in contact with smooth

water. To identify an area of clean water, observe the water flow off the

transom while the boat is underway.

• Allow headroom space above the bracket for it to release and rotate the

sensor upward (see Figure 1).

• Mount the sensor as close to the centerline (keel) of the boat as

possible to ensure the sensor remains in the water when the boat is

turning.

• Single drive boat—Mount at least 75mm (3") beyond the swing

radius of the propeller (see Figure 2). The starboard side where the

propeller blades are moving downward is preferred.

• Twin drive boat—Mount the sensor between the drives.

Transducer

TRIDUCER

multisensor

Figure 2. Mounting location on single drive boat

max. with speed sensor:

213mm (8-1/2")

headroom

INSTALLATION INSTRUCTIONSOWNER’S GUIDE &

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

Part No._________________Date___________Frequency________kHz

NOTE: Starboard

side of hull where

propeller blades are

moving downward is

preferred.

WARNING: Always wear safety goggles and a dust

mask when installing to prevent personal injury.

WARNING: When the boat is placed in the water,

immediately check for leaks around the screws and

any other holes drilled in the hull.

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

the cable as this may sever internal connections.

CAUTION: Never strike the multisensor with anything

except the palm of the hand. Never strike the paddlewheel.

CAUTION: Never use solvents. Cleaners, fuel, paint,

sealants, and other products may contain strong

solvents, such as acetone, which attack many plastics

greatly reducing their strength.

IMPORTANT: Please 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 Transom-Mount Transducer or TRIDUCER® Multisensor & INSTALLATION INSTRUCTIONS Record the information found on the cable tag for future reference. Part No._________________Date___________Frequency________kHz with Integral Release Bracket Model P66 TRIDUCER ® multisensor 12/14/10 U. S. Patents: 5,606,253; 5,719,824 17-247-03 rev. 04 WARNING: Always wear safety goggles and a dust mask when installing to prevent personal injury.
PAGE 2
Pretest Speed & Temperature Functions Connect the multisensor to the instrument and spin the paddlewheel. Check for a speed reading and the approximate air temperature. If there is no reading(s) or it is inaccurate, check the connections and repeat the test. If there is still no reading(s) or it is inaccurate, return the product to your place of purchase. Figure 3.
PAGE 3
Mounting the Bracket 1. Apply marine sealant to the threads of the three, #10 x 1-3/4", selftapping screws to prevent water seepage into the transom (see Figure 5). Screw the bracket (and shim if needed) to the hull. Do not tighten the screws. 2. Using the vertical adjustment space on the bracket slots, slide the bracket up or down until the distance between the bottom left corner and the bottom of the transom equals 38mm (1-1/2"). Tighten the screws.
PAGE 4
Testing on the Water 1. Become familiar with your echosounder’s performance at a speed of 4kn (5MPH). 2. Gradually increase the boat speed and observe the gradual decline in performance due to turbulent water flowing over the transducer’s active surface. 3. If the decline in performance is sudden (not gradual), identify the boat speed at which the onset occurred. Return the boat to this speed, then gradually increase speed while making moderate turns in both directions. 4.