ViaSat 8016, Installation And Operation Manual

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Chapter 4 - Maintenance
Chapter 4
Maintenance
4.1 General
The 11-Meter Earth Station Antenna is designed for use in many different
environmental conditions. Several areas on the antenna require service at
various intervals to ensure the proper use and operation. Modification to the
suggested service intervals is expected pending customer operation and
environmental conditions. The mount azimuth and elevation pivot points
are designed with self-lubricated spherical bearings and require no
lubrication. The azimuth and elevation actuators, however, contain a
gearbox and a ballscrew mechanism which require inspection and
application of lubricant as required.
At no time should substitute parts be used in any repair of this antenna. Use
only authorized parts. Any alternations to the antenna not specifically
described in this instruction manual and not authorized by ViaSat can void
the warranty.
4.2 Periodic Maintenance
The suggested service intervals apply to a typical antenna installation and
may vary due to environmental conditions.
4.2.1 Weekly Maintenance
Ensure motorized antennas are driven in azimuth and elevation on a weekly
basis. Perform routine inspection and maintenance on waveguides. In areas
of heavy snow and ice, mounts should be inspected before movement for
excessive accumulation of ice, or damage may result.
4.2.2 Monthly Maintenance
Apply electrical power, as applicable, to azimuth actuator, elevation actuator,
and polarization drive assembly. Run each axis for two or three minutes in
the normal operating sector. Inspect drain holes in the actuator motors; holes
should be open for condensation drainage. Observe brake operation, if
applicable.
42S132E
4-1