DOCUMENT # 90021, REV 4 MODEL 7000 GYRO OPERATION MANUAL-MAR09
Page
5
of
8
2.5
RUN – STABILIZATION – DISPLAY OPERATION
The Display has a number of individual screens. The
operator
depresses the Menu button (not the Up and
Down buttons) to move from one screen to the next.
The RPM page on the Display will indicate 9.7KRPM
once the Gyro reaches full speed.
The ANGLE page on the Display indicates the gimbal
angle. It should be b/- 50 degrees during
precession except when the boat is turning to port it
may slowly go as high as +/-60 degrees. This is normal.
The BEARING page on the Display indicates the
temperature of the upper outer, upper inner, lower outer
and lower inner bearings. Pressing the Up Button on
the Display reveals the bearings names. Bearing
numbers 1, 2, 3 and 4 correspond to Upper Outer,
Upper Inner, Lower Inner and Lower Outer locations on
the flywheel shaft respectively. The bearings typically
run 20
o
to 40
o
C hotter than the ambient sea water
depending on the sea state. The rougher the sea state,
the higher the bearing loads and the more heat they
generate.
