Airmar P52 with Plastic Release Bracket 20-039 User Manual

Installation instructions owner’s guide, Transom mount, Transducer or triducer

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17

-0

03

r

ev.

06

04

/12

/11

Transom Mount

with Release Bracket 20-039

Transducer or TRIDUCER

®

Multisensor

Model: P52

Tools & Materials

Safety goggles
Dust mask
Screwdrivers
Wrenches
Scissors
Masking tape
Electric drill
Drill bits and hole saw or spade bit:

Bracket holes

4mm, #23, or 9/64"

Fiberglass hull

chamfer (preferred), 6mm, or 1/4"

Transom hole (optional)

19mm or 3/4"
20mm or 13/16" (Furuno)

Cable clamp holes

3mm or 1/8"

Marine sealant (suitable for below waterline)
Straight edge
Pencil
Zip-ties
Water-based antifouling paint (mandatory in salt water)

Identifying Your Model

The model name is printed on the cable tag.

Applications

• Not recommended for boat with large inboard engine(s).
• Good operation up to 40kn (46MPH).
• Vertically orients the sound beam on hull with deadrise angle up to 22

°

• Adjusts to transom angles of up to 20

°

Assembly

1. Attach the left release arm to the bracket back by first inserting a hex nut

into the recess in the back of the bracket. Place the arm firmly against
the bracket back and insert a #10-32x5/8" screw with a flat washer
through the holes. Tighten it in place (see Figure 1). Repeat this
procedure with the right release arm.

2. Slide the flat washer and spring onto the #10-32x2" screw and insert it

into the hole in the left release arm. Insert a nylon-insert lock nut in the
right release arm hole with the nylon side facing outward. Tighten the
screw until the spring is flush with the surface of the release arm. Do
not over-tighten
.

3. P52—Attach the sensor to the bracket by placing the bracket inside

(see Figure 2). Use four #10-32x5/8" screws and flat washers. Fasten
them in place with nylon-insert lock nuts, nylon side facing outward.
Tighten the screws, so the sensor remains in place but can be adjusted.

P37

Figure 1. Bracket assembly

#10-32x2"

#10-32x5/8"

flat washer (3)

nylon insert lock nut

hex nut (2)

spring

right

left

bracket back

screw

screw (2)

release

release

arm

arm

Figure 2. Attaching sensor to bracket

inside

bracket

flat washer

INSTALLATION INSTRUCTIONS

OWNER’S GUIDE &

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: When the boat is placed in the water,

immediately check for leaks around the screws and

any other holes drilled in the hull.

CAUTION: This is an impact release bracket only.

Attempting to manually release the bracket may cause

damage.

CAUTION:

The bracket protects the sensor from frontal

impact only.

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

cable as this may sever internal connections.

CAUTION: Never strike the sensor.

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.

NOTE: Attach the brackets
to the inside of the sensor’s
mounting tabs

shown

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