User's Manual

SBS-900 Shore Based Radar Systems
Chapter 9: Planned maintenance
KH-1602-2 issue 1: Standard SBS900 Systems Operator & Maintenance Handbook
Page 86 of 240
9.2 Advanced Antenna Systems
The planned maintenance procedures for the
Advanced ST1-F10/ 20 Antenna Turning Unit
(ATU) and antenna range are briefly outlined
below but are not detailed in this handbook.
ST1-F10/ 20 Antenna Turning Unit & antenna
Please refer to the installation and maintenance handbook supplied with the advanced
equipment for full details on planned maintenance.
Electronic copies of these handbooks (Pdf) are available on request.
For reference use only, the recommended maintenance schedule is:
Recommended maintenance schedule for ATU and antenna:
Every 6 months:
( General inspection of the ATU and the antenna.
Every 6 years:
( Replacement of the crossed roller bearing of the bearing-mounted
antenna mounting flange.
( Replacement of the gearbox complete with motor
( Replacement of the rotary joint.
Transceiver enclosure and Radar Distribution Unit:
The transceiver enclosure and Radar Distribution Unit MUST be inspected in line with the
Standard system planned maintenance schedule which is shown in the following section.
This includes the inspection of the following equipment:
DTX-A7 Downmast transceiver enclosure (all variants)
SBS-A1 RDU - Radar Distribution Unit (all variants)
55-100-0436-001 Static desiccator
WARNING:
Lethal voltages are present within the equipment.
All maintenance procedures must be carried out with all relevant power sources switched
OFF, fully isolated and disconnected.
Health & Safety precautions: All health & safety notices noted in this document and the enhanced
system handbook must be read and observed at all times.