Controls And Power Failure; Azimuth Drive - Andrew OM24SNG-RC Operation And Maintenance

Emergency Procedures
Controls and
Power Failure

Azimuth Drive

Step 1
Step 2
Step 3
In the event of power loss or controller failure with antenna deployed, the following pro-
cedure will allow the antenna to be returned manually to stow position.
Stowing antenna without power requires two personnel to safely return antenna
to stowed position. Failure to follow this requiement may cause personal injury
and/or damage to antenna.
To return azimuth to a stow heading, first determine direction of rotation to return anten-
na to stow position.
Locating the brake cover, on the azimuth drive motor, located on the free hanging end of
the drive motor assembly (Figure 6) is the brake cover. Carefully remove the brake
cover attached with two wing nuts, being careful to retain the nylon washers under the
wing nuts (required for watertight seal).
Figure 6. Location of Azimuth Brake Assembly
With the brake assembly exposed, locate the manual release screws (2) on the brake
assembly. The brake can be released by turning the manual release screws counter-
clockwise, allowing the motor to free-wheel.
Notice!
14
Brake Cover
Emergency Procedures