Master Compass - Simrad GC80 Compact MK2 User Manual

Simrad GC80/85 Compact MK2 Gyro Compass
WARNING
988-12718-003

Master compass

Select a mounting location where the deck is horizontal, flat and with little
vibration, and where the pitch/roll motion is minimal.
It is also important to select a mounting location with sufficient space for
installation and service. Refer dimensional drawing, page 86.
1
Place 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.
2
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
- It is also possible to mount the Master Gyro with 180
degree offset. Then the S1-7 on MCC board must be set
to ON.
The Master Gyro must never be mounted with 90 degree
offset.
3
Remove the 4 screws holding the compass case, and carefully lift the
case up and away.
4
Remove the cable inlet cover.
5
Fasten the compass to the deck using 4 bolts. The bolts should be
located at the center of the trails in order to later be able to adjust
the compass direction when the heading is tuned in. Refer
Adjusting True heading
6
Remove strips and foam rubber from the shock absorbers, together
with all strips used to secure moving parts during transportation.
, page 66.
, page 66.
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