Compass
STD 22
Installation and Service manual
Compass STD 22
Compass STD 22 Compact
183
Edition: July 1, 2005 3646/110 --233.DOC010302
6 Tasks to be performed regularly
A task to perform regularly is to clean the internal of the gyro compass time by time.
Especially the bottom filter has to be cleaned.
6.1 Changing the supporting liquid and distilled water
At 18 months intervals the supporting liquid and distilled water must be changed.
The supporting liquid and distilled water must not be
changed whilst at sea
(except in the case of dual systems).
Tools/special tools required:
-- Filling device
-- I n j e c t o r
Spare parts required:
-- Supporting liquid
-- Distilled water
If required:
-- Screw (distilled water)
-- Screw (supporting liquid)
-- Screw (ventilation)
6.1.1 Removing the outer sphere from the compass enclosure
-- Wait min. 15 minutes until the gyrosphere does not turn any more.
-- Turn off the 24V power supply of the gyro compass and secure it against reconnecting.
-- Undo the two screws at the top and bottom of the door of the gyro compass enclosure
and lift out the door, paying attention to the earthing strip.
-- Remove the plug from the outer sphere (see Figure 66/2).
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