Airmar S69—Transom Mount - Manual (Page 4)

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3. On the outside of the hull secure the cable to the transom using
the cable clamps. Position one cable clamp 50mm (2") above
the bracket and mark the mounting hole with a pencil.
4. Position the second cable clamp halfway between the first
clamp and the cable hole. Mark this mounting hole.
5. If a hole has been drilled in the transom, open the appropriate
slot in the cable cover. Position the cover over the cable where
it enters the hull. Mark the two mounting holes.
6. At each of the marked locations, use a 3mm or 1/8" bit to drill a
hole 10mm (3/8") deep. To prevent drilling too deeply, wrap
masking tape around the bit 10mm (3/8") from the point.
7. Apply marine sealant to the threads of the #6 x 1/2" self-tapping
screws to prevent water from seeping into the transom. If you
have drilled a hole through the transom, apply marine sealant to
the space around the cable where it passes through the transom.
8. Position the two cable clamps and fasten them in place. If used,
push the cable cover over the cable and screw it in place.
9. Route the cable to the instrument being careful not to tear the
cable jacket when passing it through the bulkhead(s) and other
parts of the boat. To reduce electrical interference, separate the
sensor cable from other electrical wiring and the engine(s). Coil
any excess cable and secure it in place with zip-ties to prevent
damage.
10.Refer to your instrument owner’s manual to connect the sensor
to the instrument.
Checking for Leaks
When the boat is placed in the water, immediately check for
leaks around the screws and any holes drilled in the hull. Note
that very small leaks may not be readily observed. Do not leave
the boat in the water unchecked for more than three hours.
Maintenance
Antifouling Paint
Aquatic growth can accumulate rapidly on the sensor’s surface
reducing performance within weeks. Surfaces exposed to salt
water that do not interlock must be coated with antifouling paint.
Use water-based antifouling paint only. Never use ketone based
paint since ketones can attack many types of plastic. Reapply
paint every 6 months or at the beginning of each boating season.
Servicing the Paddlewheel
CAUTION: Do not move the assembly past the shaft holes as any
gap filler will be damaged.
Clean the sensor with a soft cloth and mild household detergent. If
the paddlewheel becomes fouled or inoperable, remove it for
cleaning. Remove the two adjustment screws and push the
adjustable paddlewheel assembly down until the paddlewheel
shaft is exposed (see Figure 9). Do not move the assembly past
the shaft holes as any gap filler will be damaged. Push out the
paddlewheel shaft with a 1/16" punch. Use a stiff brush or putty
knife to remove the growth. In severe cases, wet sand the surface
with fine grade wet/dry paper.
Orient the short side of the paddlewheel blades as shown in
Figure 10. Slide the shaft through the holes in the adjustable
paddlewheel assembly and the paddlewheel. Be sure the ends of
the shaft are flush with the housing.
Figure 10. Orienting the paddlewheel
rotate
paddlewheel
shaft
BOW
push
adjustment
screws (2)
do not move
adjustable
paddlewheel
Figure 9. Servicing
assembly
lower than
paddlewheel
shaft holes
remove
Sensor Replacement & Parts
The information needed to order a replacement sensor is printed
on the cable tag. Do not remove this tag. When ordering, specify
the part number and date. For convenient reference, record this
information on the top of page one.
Replace broken or worn parts immediately. The water-lubricated
paddlewheel bearings have a life of up to 5 years on low-speed
boats [less than 10knots (11MPH)] and 2 years on high-speed
vessels. Purchase Paddlewheel Kit 33-398.
Obtain parts from your instrument manufacturer or marine dealer.
Gemeco Tel: 803-693-0777
(USA) Fax: 803-693-0477
email: [email protected]
Airmar EMEA Tel: +33.(0)2.23.52.06.48
(Europe, Middle East, Africa) Fax: +33.(0)2.23.52.06.49
email: [email protected]
Copyright © 1997 ­ 2011 Airmar Technology Corp. All rights reserved.
AIRMAR
®
TECHNOLOGY CORPORATION
35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA
www.airmar.com