Sperry Marine NAVIGAT 100, Operation, Installation And Service Manual

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056373/D NAVIGAT 100
x Safety Instructions
CAUTION
Risk of unstable/unreliable heading in polar waters
When operating the vessel in polar waters, the heading information of
the gyrocompass may become unstable/unreliable resulting in possible
deviation. For safe steering in polar waters, the heading information of
the gyrocompass may therefore NOT be used for navigation and heading
information of a GNSS (Global Navigation Satellite System) compass be
preferred instead.
CAUTION
Risk of damage to the gyrosphere through shut-down
A shut down of the NAVIGAT 100 system, while the vessel is navigating,
will damage the gyrosphere, as the gyrosphere is only self protected
against physical damage, as long as the system is running.
NEVER shut down the NAVIGAT 100, while the vessel is navigating.
A shut down of the NAVIGAT 100 system for good reason is only possible
when the ship is NOT navigating.
Note Sperry Marine requires to NOT shut down the NAVIGAT 100 system as
long as the vessel is navigating, even when operating in polar waters
with possible unstable/unreliable heading.
CAUTION
Risk of damage/destruction through low temperatures
The supporting fluid in the gyrosphere container will start freezing at
temperatures below 0° C.
The NAVIGAT 100 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 100 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. The removal is to be executed in a
service work procedure by authorized service personnel only.
CAUTION
Risk of damage through unauthorized service
Scheduled maintenance or service work on the gyrosphere is to be car-
ried out by authorized service personnel only.
CAUTION
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 ser-
vice work procedure to remove the gyrosphere from the gyrosphere con-
tainer.