Sperry Marine 4914-CA, Operation, Installation And Service Manual

Page: 35 / 192

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The permitted ambient temperature for the operation of the gyrocom-
pass system is between - 10° C to + 55° C.
The recommended ambient temperature for highest system longevity
for the operation of the gyrocompass system is around 20° C.
When the ambient temperature at the gyrocompass’ location falls below
- 10° C while the compass is in operation or when the ambient tempera-
ture falls below 0° C while the compass is not in operation, the gyro-
sphere container must be removed from the compass housing and
stored in a place where the ambient temperature will not fall below 0° C.
Always be aware, that in case no storage place is available where the
ambient temperature will not fall below 0° C, the gyrosphere must be
removed by authorized service personnel from the gyrosphere con-
tainer to prevent possible damage by frozen supporting fluid. see
“Removing the Gyrosphere Container from the Compass Housing” on
page 5-3 for details.
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Risk of damage/destruction through low temperatures
The supporting fluid in the gyrosphere container will start freezing at
temperatures below 0° C.
The NAVIGAT X MK 1 must no longer be operated when the ambient tem-
perature at the gyrocompass’ location falls below - 10° C while the com-
pass is in operation or when the ambient temperature falls below 0° C
while the gyrocompass is not in operation.
Always make sure, that the ambient temperature is higher than 0° C
respective - 10° C. If this is not possible, the gyrosphere container with
gyrosphere must be removed from the NAVIGAT X MK 1 and transported
to a place with sufficient ambient temperature.
Make sure to remove the gyrosphere from the gyrosphere container if no
place with sufficient ambient temperature is available to eliminate dam-
age from freezing supporting fluid.
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Risk of damage through unauthorized service
Only authorized service personnel is allowed to remove the gyrosphere
from the gyrosphere container.
Always keep to the mandatory safety requirements and the correct serv-
ice work procedure to remove the gyrosphere from the gyrosphere con-
tainer.
kçíÉ For installation and service procedures of the gyrosphere and gyro-
sphere container, the following separate Installation, Maintenance and
Service Procedures, delivered with the gyrosphere, apply:
- 04911-0125-001, for gyrosphere type 2, gyrosphere container mod. 7/2
- 04911-0125-002, for gyrosphere type 2, gyrosphere container mod. 10/2
- 05000-0125-001, for gyrosphere type 3, gyrosphere container mod. 10/3
- 05000-0125-002, for gyrosphere type 3, gyrosphere container mod. 10/3
with the NAVIGAT X MK 1 in DP vessel application.