Brake

The brake mechanism consists of two hydraulic cylinders that attach to a crank arm on the
Seakeeper gimbal shaft. The Seakeeper controller modulates how fast the oil can flow through the control valve thus controlling the precession rate of the Seakeeper.

The brake hydraulic circuit is a pre-charged closed loop – that is, there is no pump, motor or reservoir in the circuit. Accumulators are installed in the circuit to help maintain a more consistent pressure during operation and provide some make-up oil in the event of minor fluid loss. Locking solenoids are installed in the circuit to lock the Seakeeper so it cannot precess if there are any alarms or a mechanical problem with the Seakeeper.

Hydraulic Hand Pump Kit is required for servicing the brake system (by a local Seakeeper dealer). Pressure should never be relieved unless this tool is available.