May 15, 1978
3.11
Keel Hoist Maintenance
Proper lubrication of the keel hoist screw jack nut assembly is mandatory to ensure that the
electric keel hoist winch motor is not damaged due to overloading. This will also ensure that
excessive battery current is not used, thereby providing maximum battery use from each
charge.
The screw should be lubricated with a spray type lubricant. GE silicone spray and WD 40 are
two commonly available brands. Simply start at the top of the slot on each side of the aft
post. Operate the spray and spray down to the bottom of the slot. This should be done each
time the keel is cycled or often enough to prevent corrosion if the system is seldom activated.
It should also be lubricated prior to the first operation during spring commissioning and
before the final operation prior to fall layup.
The keel is a solid iron casting. It will require periodic painting with paints recommended
by your dealer for your local sailing waters.
There is a bronze roller at the aft bottom end of the keel trunk. While the boat is in the water,
it is water lubricated. It should be lubricated periodically if kept on a trailer and in the spring
and fall before and after commissioning and fall layup with silicone.
The electric winch motor should be lubricated according to the manufacturer's specifications.
The chain and sprockets should be lubricated with powdered graphite or dry chain lubricant
every five cycles of the keel or once a month - which ever comes first.
The top screw jack bearing should be lubricated every two years by your C&C dealer.
3.12
Chain Tension -Winch
The chain between the two sprockets should normally require no adjustment. Should it
become loose or if the hoist motor has beenremoved, then the hoist motor should be slid all
the way aft in the mounting slots. The chain is then put on the sprockets. Slide the hoist
motor forward until the chain has 1 /2" slack and tighten the mounting bolts.
3.13
Battery Charging
Most small outboards are available with alternators to keep the battery charged. Frequent
operation of the keel lift mechanism may require additional periodic battery charging with
a conventional battery charger.
Summary of Contents for Mega
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