Maintenance Handbook

SBS-800 Series Operator & Planned Maintenance Handbook
Chapter 4: Switch ON, OFF & Emergency Stop
KH-1601-2 Issue 6
Page 28 of 80
4.2 Switch ON
FIRST TIME SWITCH ON
Ensure the setting to work of the system has been successfully completed and signed off.
POWER
Check that all sources of external AC power are available and are switched ON.
ANTENNA
Ensure the antenna is clear of all obstructions and that it is safe to rotate.
TRANSMISSION
Ensure it is safe to transmit.
The following describes the local switch-ON sequence for the SBS-800 series only and does not
include the switch on procedures for the track extractor or optional service display.
EXTERNAL
BREAKERS
Observing all health and safety notices and where safe to do so, ensure that all
AC power to the system are switched ON at the appropriate breakers
SAFETY
SWITCHES
Man Aloft Switch
Ensure that the externally
mounted Man Aloft Switch (MAS)
is in the FREE position.
Man Aloft Switch
Radar Distribution
Unit
Ensure that the Antenna Rotation
keyswitch on the front of the
Radar Distribution Unit is in the
FREE position.
Keyswitch on door of
RDU
WARNING
ANTENNA ROTATION SAFETY NOTICE
When the antenna motor AC power is connected to the system and switched ON, the antenna will
rotate immediately regardless of the RUN command status.
AC POWER
TO THE
RADAR
DISTRIBUTION
UNIT
Within the Radar Distribution Unit, LED’s will illuminate
on each breaker indicating that AC mains inputs are
present.
Note
Noting the antenna warning above, place all RDU
breakers into the ON position.
When AC mains voltages are present and the breakers
are all in the ON position, the Radar Distribution Unit will
switch ON.
RDU AC breakers
GEARBOX
HOUSING ACH
(Anti-Condensation
Heaters)
Where connected and required, switch ON the independent AC supply to the
anti-condensation heaters using the dedicated AC breaker.
See section 5 for application details.
SYSTEM
READY FOR
USE
With AC power available, switched ON and the switches set as shown above,
the system is available for use and the antenna will rotate.
Note: The LED indicators located on power breakers within the RDU are an indication that mains
voltages are present. They are NOT an indication that the breakers are switched ON.