12
03.12.09
INSTALLATION INSTRUCTIONS – fitting the drive components
Find your previously marked datum position.
Note : The datum position is the reference for all measurements.
Wrap the cardboard straight edge around the mast ensuring
that the edges are parallel where they overlap. Tape
the ends together, to position securely (See Diagram 6)
Align the top or bottom edge of the straight edge with
the datum position and draw neatly around to form
a parallel edge at the datum position.
Mark the aft center position on datum line and then measure
evenly around both ways to find the center forward position
on the front face of the mast. Next mark the indicated distance
to Starboard (See Diagram 1) both on the forward and aft face.
Use center punch to locate center of drive shaft hole.
Remove the straight edge and put aside to use as a packing
gauge when drilling the universal shaft pin hole. Using the
correctly sized hole saw, based on shaft diameter, drill the
first drive shaft hole at the opposite end of the mast, fore or
aft, to the wiring tube. Through this first hole wedge the wiring
tube over to one side as you drill the opposing drive shaft hole.
With a round file, debur the edges of both holes.
Dry fit the Spool and Inner Bearing castings to ensure that the
castings fit the profile neatly. It is important that the
center
of
the Spool casting touches against the mast before either of
the two side plates. If either side plate touches the mast wall
before the center, grind the affected area until the spool fits
neatly in position. Thin washers can be used if necessary to
ensure spool touches on the center.
Once fitting closely, the Spool and Inner Bearing castings can
be temporarily fitted against the mast,
Once the spool cover and inner bearing castings fit properly,
Prepare the mast for the seating compound. The seating
compound is used to fill any voids between the castings
and the mast. It also acts as a corrosion barrier between
the mast and the stainless inner casting.
With the inner bearing and the spool cover off, place masking tape on the mast in the
area where the castings will sit. Be sure to mask outside the casting an inch or two
Diagram 6
Diagram 7
