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detergent. If the fouling is severe, remove the paddlewheel with needle-
nose pliers. Use a stiff brush or putty knife to remove the growth taking care
to avoid scratching the depth transducer. Lightly wet sand with fine grade
wet/dry paper.
The water lubricated paddlewheel bearings have a life of up to 5 years on
low-speed boats [less than 10kn (11MPH)] and 1 year on high-speed
vessels. Paddlewheels can fracture and shafts can bend due to impact with
water borne objects and mishandling in boat yards. O-rings must be free of
abrasions and cuts to ensure a watertight seal. A replacement Paddlewheel
is available.
1. Remove the old paddlewheel shaft with needle-nose pliers (see Fig. 6).
insert
blanking plug
Figure 6. Replacing the paddlewheel and O-rings
2. Place the new paddlewheel in the cavity with the flat side of the blade
facing the same direction as the arrow on the top of the insert.
3. Tap the new shaft into place until the end is flush with the outside wall
of the insert.
4. Install a large O-ring near the top of the insert. Install a small O-ring
near the paddlewheel.
5. Place the remaining two O-rings in similar positions on the blanking
plug.
7.3 Multisensor Replacement
The information needed to order a replacement multisensor is printed on
the cable tag. Do not remove this tag. When ordering, specify the part
number.
large O-ring
small O-ring
shaft
BOW
arrow
flat side
of blade
faces bow
Содержание Triducer-Through-hull
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