Figure 2-34. Gyro compass master unit.

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Figure 2-33. Gyro compass control cabinet.

TM-55-1925-204-12 TUG Harbor Diesel 1200 H. P. Steel 100 Ft Design 3006 Flight One FSN 1925-375-3003 Manual

Starting the compass.

Figure 2-34. Gyro compass master unit.

Table 2-17. Gyrocompass Front Panel Operating Control Functions.

Control

Function

RPTR switch................................ .........

This switch controls the internally generated power for operating external repeater

equipment.

N-S switch ................................ ............

This switch is used in conjunction with the latitude corrector to select for north or south

latitude correction.

CAGED indicator ................................ ..

This indicator will be illuminated anytime the gyro is caged and the equipment is on. It

will go out after uncaging and will stay out during normal operation of the compass.

LEVEL meter ................................ ........

This meter provides an indication of the tilt of the gyro spin axis. It is used primarily

during starting of the compass to assure the gyro is started level. Its sensitivity is

approximately 2 minutes per division.

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