Simrad GC80 Instruction Manual download pdf (Page 46)

Simrad GC80/GC85 Compact Gyro Compass

38 20221511 / C

Master compass

Select a mounting location where the deck is horizontally, flat

and with little vibration, and where the pitch/roll motion is as

small as possible.

It is also important to select a mounting location with sufficient

space for installation and service. Refer dimensional drawing,

page 72.

1 Locate the compass on or parallel to the vessel’s horizontal

centerline, with the bow indication on the top of the case

pointing towards the vessel’s bow.

Use the datum line in the front and back to of the compass

to line up the unit.

- It is possible to compensate for a small mounting offset

by using the heading offset feature as described in

Adjusting True heading, page 52.

2 Remove the four screws holding the compass case, and lift

the case carefully upwards and away.

3 Remove the cable inlet cover.

4 Fasten the compass to the deck with four bolts. The bolts

should be located in the center of the trails for later to be

able to adjust the compass direction when the heading is

tuned in. Refer Adjusting True heading, page 52.

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Simrad GC80 Instruction Manual Page 46