Airmar M260 Owner's Manual & Installation Instructions
17-300-01 re
v.07
11/04
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.
In-Hull, Removable, Depth Transducer
Models: M260, R199
Applications
• Fiberglass hulls only
• Recommended for high-speed boats
• Accommodates a deadrise angle up to 30°
Tools & Materials
Wrenches
M260
3/16" Allen wrench
M260, R199
9/16" socket
or
wrench
Rope
Detergent
or
weak solvent (such as alcohol)
Safety goggles (some installations)
Dust mask (some installations)
Disk sander (some installations)
Thin sealable plastic bag (optional)
Twist-tie
Water-based lubricant (such as K-Y
®
jelly) (optional)
Carpenter’s level
Pencil
Saw
Scissors
Fiberglass resin
or
silicone sealant (such as GE Silicone
I
or Silicone
II
)
Mineral oil (available at pharmacies)
or
Propylene glycol (non-toxic antifreeze/coolant)
Funnel
Zip ties
Assembling the Transducer
1. Remove the paper backing from the adhesive side of the gasket.
With the adhesive side facing the plate, align the holes and
edges of the gasket with the under side of the plate (see
Figure 1). Press the gasket firmly into place.
2. Thread the cable through the cable hole in the gasket and plate.
Caution
: Do not over-tighten the bolts.
3. Rest the plate on the transducer with the gasket side down and
align the mounting holes. Fasten the plate to the transducer.
M260
—Use the three Allen screws and three lock washers
supplied. Lightly tighten with a 3/16" Allen wrench.
R199
—Use four of the hex-head bolts and lock washers
supplied. Lightly tighten with a 9/16" socket or wrench.
4. Thread the cable under the handle as seen in the drawing above.
Mounting Location
About Fiberglass Hulls
Caution
: The fiberglass hull below the transducer must be solid.
Since the hull absorbs acoustic energy, transmitting through the hull
reduces the transducer’s performance. Fiberglass hulls are often
cored in places for added strength or to reduce weight. These cored
areas contain balsa wood or structural foam which are poor sound
conductors.
Do not locate the transducer over coring.
Figure 1. Assembling the transducer—
M260 shown
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
Allen screw (3)
lock washer (3)
transducer
gasket
plate
cable
fill/vent
plug (2)
mounting hole (3)
cable hole
(adhesive
side up)
M260
AIRMAR
®
INSTALLATION INSTRUCTIONS
OWNER’S GUIDE &