May 15, 1978
Keel Positioning After Launch - General
The keel may be pinned in the up, down or middle position and must be pinned at all times
when sailing. The full weight of the keel should be on the screw jack mechanism ONLY
when raising or lowering to one of the three positions. The keel should be pinned in the
desired position on the forward post, then the winch activated to allow the weight to rest on
the pins on the forward post. The keel weight is designed to be carried on the pins in the
forward post and the screw jack aft. You may adjust keel position while underway, but pin.
the keel and release the tension as soon as the desired position is reached.
The components of your MEGA's retractable keel are depicted in Fig-3 .
THE KEEL IN YOUR MEGA WEIGHS IN EXCESS OF ONE TON. THIS IS A LARGE
WEIGHT TO MOVE AND EXACT INSTRUCTIONS THAT FOLLOW SHOULD BE
ADHERED TO. THE KEEL MECHANISM HAS BEEN ENGINEERED WITH THE
GREATEST OF CARE TO PROVIDE TROUBLE-FREE AND SAFE OPERATION AS
LONG AS THE FOLLOWING INSTRUCTIONS ARE CAREFULLY COMPLIED WITH.
Two keel pins are provided. Remove and install as appropriate where indicated below.
To lower from full up and pinned position:
Plug in winch electrical cable.
Check for obstructions on posts and I-beam.
Ensure you have sufficient water depth to lower.
Spray full length of jack screw with silicone lubricant through slots on both sides of
Activate winch UP. Raise only enough to release pressure on pin in forward post.
Remove top pin.
If lowering to mid position, remove the top one of the two mid position pins.
If lowering to full down position, remove both mid position pins and the lower
Activate keel winch DOWN. Lower until I-beam contacts the mid position pin or the
keel trunk as desired.
Replace all pins. Ensure one is placed just above keel I-beam to lock it.
Disconnect and stow electrical cables.