Andrew OM24SNG-RC manual Weep Hole Protective Tube Brake Cover

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Step 6

Step 7

Locate the small weep hole in the brake cover near the hole for the protective tubing. It may be painted closed and easier to locate from inside the cover. Use the 1/16 inch drill bit to drill a 1/16 inch hole enlarging and cleaning out this existing hole. This weep hole is essential to allow equalization of pressure inside the brake. After drilling, wipe inside of cover removing any shavings or debris. Refer to Figure 6.

1/16”

Weep Hole

Protective

Tube

Brake

Cover

Figure 6

There are two ways the cover may be installed. Install the brake cover with the weep hole facing down. Use the nylon washers under the wing nuts to provide a water-tight seal as detailed in Figure 7.

Brake

Cover

Nylon

Washers

8-32 Wing

NutsWeep

Hole

Figure 7

This completes the replacement of the azimuth brake assembly. The antenna control power should now be turned back on and the azimuth axis rotated to verify proper brake release and operation.

20

Component Replacement

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Contents Meter SNG Table of Contents Introduction Purpose Proprietary Data Information and AssistanceCustomer Service Center Hour Technical AssistanceCall From Call To Telephone Fax Call From Telephone FaxSafety Summary Do Not Service Or Adjust AloneESD Precaution Keep Away From Live CircuitsDescription AntennaMaintenance General Introduction Antenna Drive System Cable InspectionCable Replacement Azimuth Rotational Limits Overhead View of Antenna Azimuth Drive Cable Tension Adjustment Step Azimuth Access Port Positioned Over Cable Adjusting NutsAdjusting Azimuth Cable Tension Step Elevation Drive Cable Tension Adjustment Step Elevation Cable Tension AdjustmentEmergency Procedures Controls and Power Failure Azimuth Drive StepBrake Release Screws Elevation Drive Step Component Replacement Brake WiresBrake Release Hardware Body Nuts Cover Brake Brake Release Weep Hole Protective Tube Brake Cover Elevation Brake Replacement Antenna Electrical Specifications22Specifications 23Specifications Antenna MechanicalAntenna Dimensions 24Specifications25Specifications ViewAntenna Clearance Envelope Top View Antenna Clearance Envelope and Center of Gravity Side View