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03.12.09
Place the inner bearing and spool back in their proper position on the mast. Mark the outer
edge of both with a felt marker or pencil. Remove the bearing and spool cover. Cut the
masking tape inside the perimeter marks. The area of mast now exposed will be covered
with seating compound and the castings. (See diagram #7)
The seating compound will require a sound base on the mast to adhere to, so sand the
area, then clean with a solvent to remove any oils. Mask around the edges of the castings
also, and grease the Spool shaft as compound may dry on this, making it difficult to remove
after fitting.
Mix the seating compound with hardener at approximately 2% by weight (use less in hot
weather) by volume. Mix this well until the hardener is blended with the compound. Place
equal amounts of the seating compound around the castings then position in place on the
mast. Working time of the seating compound will vary depending on the temperature. Take
caution in hot weather as the compound can go off within a minute. In cold weather it can
take 10-15 minutes or longer.
Assemble the castings and drive shaft in place on the mast. Use the plastic spacer strips or
the cardboard template to centralize the spool plate around the cover. Push both the inner
casting and spool cover really firmly against the mast. Install the clamping tube assembly
over the drive shaft (with the clamping tube against the inner bearing). Be sure to grease
all components that will come in contact with the seating compound or some parts may
become stuck. Tighten the clamping assembly.
This compresses the castings against the mast profile. The seating compound will spill out
from the edges. If there are areas that obviously require more compound use the excess
that has spilled out to fill but if the weather is hot, be quick as you may not have a lot of time.
At this stage tape both the top and bottom of the castings right around the mast to secure
while the compound dries. Do not attempt to wipe the excess away.
Allow the compound to tack off then cut around the castings with a sharp blade, to remove
excess compound before it fully cures. Do not leave it too long before cutting the excess away
as when it goes properly hard if will be a big job to clean it up.
After the compound has cured adequately fasten the Inner bearing by machine screwing
this to the mast with the screws supplied. Drill and fasten the two center screws first so as
not to misalign the casting.
Use LocTite on all inner bearing fasteners
. Tighten the
screws in sequence when all fitted to ensure no possibility of pulling.
Insert a winch handle into the forward face of the Spool plate, and rotate gently to either side,
to free the drive shaft and furling spool. Disassemble the clamping assembly. Leave the tape
securing the spool cover to the mast. Be careful not to disturb the Spool cover as it sits
against the mast. The spool plate and drive shaft can be pulled away from the mast. Fasten
the Spool cover by machine screwing this to the mast with the screws supplied. Drill and
fasten the two center screws first so as not to misalign the casting with the drive shaft center.
Tighten in sequence. Remove tape. With a round file or scraper gently remove any excess
compound from inside the drive shaft hole and bearing area.
