Airmar B744V - Manual

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Thru-Hull, Spares Kit
Paddlewheel & Valve Kit 33-218
Fits Models: B44V, B66V, B66VL. B744V, B744VL
Servicing
CAUTION: Be careful to avoid cross threading the cap nut.
1. O-rings must be intact and well lubricated to make a watertight
seal. Lubricate the replacement O-rings with silicone lubricant or
petroleum jelly (Vaseline®). Replace the two O-rings near the
bottom of the blanking plug. Do not place them near the pull ring
(see Figure 1).
2. Remove the safety wire and unscrew the cap nut. With the
blanking plug ready in one hand, remove the paddlewheel
insert and valve assembly as one unit by grasping the pull ring
and pulling upward. Rapidly insert the blanking plug to minimize
the flow of water into the boat. TEMPORARILY hold the plug in
place with the safety wire (see Figures 2 and 3).
This is NOT a watertight or secure seal!
Do not leave the boat in the water unattended.
3. Separate the paddlewheel insert from the valve assembly by
removing the safety ring and the retaining pin. Grasp the insert
by the pull ring and pull slowly upward.
Figure 3. Installation with strap (B744V shown)
O-rings
Figure 1. Blanking plug (B744V shown)
pull ring
pull ring
retaining pin
hull
safety wire
cap nut
hull nut
backing
stem
cable
block
safety strap
safety ring
Copyright © 2005 Airmar Technology Corp.
Copyright © 2005 Airmar Technology Corp.
Follow the precautions below for optimal
product performance and to reduce the risk of
property damage, personal injury, and/or death.
WARNING: The valve assembly must be in the
housing to make a watertight seal. When the valve
assembly is removed, the blanking plug cannot
prevent water from seeping into the boat. Never leave
the boat in the water UNATTENDED without the valve
assembly in the housing and the paddlewheel insert
or blanking plug secured.
WARNING: Always wear safety goggles and a dust
mask when installing.
WARNING: O-rings must be intact and well lubricated
to make a watertight seal.
WARNING: Always attach the safety wire to prevent
the insert from backing out in the unlikely event that
the cap nut and/or insert nut fails or is screwed on
incorrectly.
CAUTION: Never use solvents. Cleaner, fuel, sealant,
paint, and other products may contain solvents that can
damage plastic parts, especially the transducer’s face.
IMPORTANT: Please read the instructions
completely before proceeding with the installation.
These instructions supersede any other instructions
in your instrument manual if they differ.
Figure 2. Installation with chain (B744V shown)
pull ring
retaining
hull
safety
safety
safety cap nut
hull nut
backing
stem
cable
block
ring
chain
pin
wire
Copyright © 2005 Airmar Technology Corp.
INSTALLATION INSTRUCTIONS