Sperry Marine 4914-CA, Руководство по эксплуатации, установке и обслуживанию

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1. Control if the compasses main and backup power supplies are
switched off. Take all the necessary precautions to make sure that
the compasses main and backup power supplies remain switched
off during any removal and installation procedures.
2. At the storage place, carefully unpack the gyrosphere container and
take it to the compass’ location.
3. Unscrew the 5 mm hex-head screws of the compass housing door
and take off the door from the housing.
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Risk of damage/destruction after power-down
After power-down of the gyrocompass system, it may take up to
45 minutes for the gyroscopes to stop rotating and the gyrosphere is
therefore extremely sensible against any movement. Should the gyro-
sphere touch the wall of the container, the momentum of the rotating
gyroscopes will make it topple and damage the centre pin.
Avoid any movement of the gyrocompass system during power-down
time. Always be extremely careful in case the gyrosphere container must
be handled during power-down time.
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Risk of damage/destruction through transport / wrong storing
When the container is temporarily stored away with the gyrosphere
installed, pack it into its original transport box or another suitable outer
package.
Always make sure that:
- the container is stored in an upright position,
- the temperature at the storage location cannot fall below 0° C,
- the container is not moved, tilted or subjected to shock.
1. Illustrations show the Mod. 10/3 gyrosphere container. All instructions
equally apply to the Mod. 10/2 and Mod. 7/2 container.