INSTALLATION
MANUAL
Section 1: MECHANICAL INSTALLATION
Safety
There is a large torque about the gimbal axis when the gyro is precessing. Gyro cover panels
are provided to prevent personnel or equipment from contacting the gyro while it is in
operation. These covers should not be stepped on, or have anything placed on top. The
covers should always be in place during operation. If it is ever necessary to access the gyro
while the flywheel is spinning, the gyro must be locked at the display to stop the gyro from
precessing. Gyro maintenance should not be attempted unless the gyro is locked and the
flywheel has stopped spinning.
The gyro should be treated with the same respect one gives a high speed rotating propeller
shaft or engine shaft.
Noise/Soundproofing
Gyro noise has been measured under steady state conditions (no wave load) in Seakeeper's lab and in
our test boat. The steady state noise is typically in the range of 70-75 dB un-weighted. As the
frequencies emitting the highest sound pressures are low (like other marine machinery), it is
recommended that the gyro be installed in a machinery space that is already treated with
soundproofing.
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