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

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`^rqflk Risk of damage through overheating
A polluted or clogged air inlet grill located at the back side of the compass
housing will decrease the functionality of the cooling fan and cause over-
heating of the gyrocompass.
Always maintain the required distances around the compass housing to
enable sufficient air supply and full cooling fan functionality.
Make sure to regularly clean the air inlet grill from dust and dirt and check
the fan functionality to avoid overheating.
`^rqflk Risk of damage through unauthorized service
Any service and installation work on the gyrosphere is to be carried out
by authorized service personnel only.
Never undertake service or installation work if unskilled for the certain
procedure.
`^rqflk 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.
`^rqflk Risk of damage through unauthorized service
Only authorized service personnel is allowed to remove gyrocompass
system components from the compass housing.
Always keep to the mandatory safety requirements and the correct serv-
ice work procedures to remove gyrocompass system components from
the compass housing.
`^rqflk Risk of damage to the gyrosphere
The gyrosphere is always to be transported in its carrying box in the orig-
inal transport container.
Do not throw or drop the transport container.
The transport container is to be transported in an upright position only.
`^rqflk Risk of damage to the gyrosphere
Carry the carrying box containing the gyrosphere by hand only and han-
dle it with extreme care.
Remove the gyroshpere from the carrying box only if required for imme-
diate installation.
`^rqflk Risk of data loss through shutdown of the compass / power-off condition
After a shutdown of the compasses main and backup power supplies it
cannot be guaranteed that all menu settings remain stored unchanged.
Always check whether the shaft correction angle and alignment error cor-
rection values are noted correctly in the setup tables, before switching-
off the power supplies, see “Setup and Configuration Tables” on page A-
1 Appendix.
Always make sure to separately note the shaft correction angle and align-
ment error correction values before switching-down the compass for
maintenance or repair purposes.