Pogo 30 Owner's Manual page 8

Tuning of the hydraulic system's brake
The keel system is tuned at the shipyard.
However, it might be necessary to have a look at the brake if the oil viscosity changes with
temperature. Fits and starts while lowering the keel represents such a need.
Hydraulic brake srew
When should you use this setting:
The keel comes down by fits and starts
The keel doesn't reach its bottom stop
How to adjust:
If the keel come down by fits and starts, you have to tighten the brake (turn clockwise). Be
careful, adjust with fineness, turn by eighth of a turn (maximum half a turn, usually eighth of
a turn is enough).
The hydraulic brake is a turnable button that must be turned clockwise. The tuning must be
made in with precaution and fineness. Usually, ⅛ of a turn is enough. Do not hesitate to
contact the shipyard.
If the keel doesn't reach its bottom stop, it's necessary to loosen the brake. To verify if the
keel is in bottom stop, look if the axis of jack is in front of the porthole.
If the keel comes up by fits and starts, you shouldn't touch the brake's
setting. It's certainly necessary to grease the rotation system of the keel.
Every settings must be made in cold conditions.
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