Furuno 525TID-TMD installation instructions Applications, Tools & Materials, Mounting Location

OWNER’S GUIDE	&	INSTALLATION INSTRUCTIONS
Transom Mount, 1kW, Depth Transducer
			Record the information found on the cable tag for future reference.
with Release Bracket			Part No.________________ Date___________ Frequency________ kHz

	Models: TM258, TM260, TM270W
01/09
	WARNING: Always wear safety goggles and a dust
rev. 01	mask when installing to avoid personal injury.
	CAUTION: Never pull, carry, or hold the transducer by
-02	the cable as this may sever internal connections.
17-299	CAUTION: Do not strike the transducer to release it.
	When mounted on the bracket, remove the transducer
	by removing the locking pin and hinge pin.
	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: Please read the instructions completely
	before proceeding with the installation. These
	instructions supersede any other instructions in your
	instrument manual if they differ.

Applications

•Recommended for outboard and inboard/outboard sport fishing powerboats, 8m (25') and up

•Not recommended for inboard powerboats

•Not recommended for stepped hulls

•Adjusts to transom angles from 3°–21°

•Bracket protects the transducer from frontal impact only

Tools & Materials

Safety goggles

Dust mask

Angle finder

Masking tape (some installations)

Pencil
Electric drill
Drill bits:
Bracket holes	5mm, #4, or 7/32"
Transom hole (optional)	18mm, 11/16", or 3/4"
	21mm or 13/16" (Furuno, Raymarine only)
Cable clamp holes	3mm or 1/8"

Marine sealant (suitable for below waterline) Socket wrench

Straight edge Small screwdriver Grommets (some installations) Cable ties

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

TM260 with shims

in operational position

Mounting Location

General Guidelines

CAUTION: Do not mount the transducer in an area of turbulence

or bubbles: near water intake or discharge openings; behind strakes, struts, fittings, or hull irregularities.

CAUTION: Avoid mounting the transducer where the boat may be supported during trailering, launching, hauling, or storage.

•For best performance, the transducer must be in contact with aera- tion-free and turbulence-free water. To identify an area of smooth water, observe the flow off the transom while the boat is underway.

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

•Mounting on the side of the transom where the propeller blades are moving downward is preferred (see Figure 1).

•Mount the transducer as close to the centerline (keel) of the boat as possible to ensure the transducer’s face remains in the water when the boat is turning. However, keep in mind that it should be a minimum of 15 cm (6") beyond the swing radius of the propeller, so the water passing over the transducer does not cause a flow disturbance to the propeller.

NOTE: Starboard

side of hull where

propeller blades are

moving downward

is prefered.

parallel to

waterline

hull projection

0–3mm (0–1/8")

15cm (6")

minimum beyond

swing radius

Figure 1. Mounting location on single drive boat

Copyright © 2009 Airmar Technology Corp.