Section III. OPERATION UNDER USUAL CONDITIONS

TM 55-6605-263-14&P

2-6.

INSTALLATION INSTRUCTIONS.

a. Tools, Test Equipment and Materials Required for Installation. No tools, test equipment, or special material are

required for installation of the Reference Gyro Test Set.

b. Place the RMHS Reference Gyro Set case in a location on board where it can be taped down and not disturbed

during operation.

NOTE

Location of the RMHS Reference Gyro Set should not be greater than 10-14 feet from watercraft

compass and operator due to length of angle position indicator cable.

c. Open case and remove the Angle Position Indicator. Make cable connection and place indicator near watercraft

compass.

d. Secure the RMHS Reference Gyro Set case to the watercraft surface by tape or other means so that case cannot

move.

e. Mark the outline of the case on surface with chalk or pencil. This will indicate if the RMHS Reference Gyro Set

case has been moved during operation.

NOTE

Angle Position Indicator should be placed in a position where it can be viewed by both the vessel

operator and the compass adjuster through-out the compass swing operation.

2-7. GENERAL. The following instructions pertain to the operational procedures of the RMHS Reference Gyro Set.

2-8. OPERATING PROCEDURES. (Fig. 1-6)

a. Ensure all switches are set to OFF.

b. Connect indicator cable to J1 of Angle Position Indicator.

c. Connect DC power cable to external +28 Vdc source.

d. Set ON-OFF-POLARITY switch to POLARITY CHECK position.

e. Correct polarity lamp (green) should illuminate. If incorrect polarity lamp (amber) illuminates, reverse DC power

cable connections at external +28 Vdc source.

2-8