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 107 of 240
9.6.2 5-year maintenance VF-nC3
5-year maintenance: Changing the static inverter in the RDU
Inspection sheet
1 of 6
After 5-years of use, the VF-nC3 static inverter located within the Radar Distribution Unit must be
changed as over time, the electrolytic capacitors within the inverter can dry out.
This maintenance procedure applies to Radar Distribution Units fitted with the inverter detailed below.
Equipment details
Radar Distribution Unit (RDU) Replacement Inverter
Part number SBS-A1- Part number 45-690-0066-001
Serial number Serial number
Toshiba VF-nC3
With the exception of the user replaceable
fan, the VF-nC3 inverter is a sealed unit that
contains no field serviceable or repairable
parts.
The unit must never be dismantled or
repaired in the field.
Toshiba VF-nC3 inverter
Radar distribution unit
Inverter
replacement date
(DD/ MM/ YYYY)
Changed by
Print: Sign:
Tools required A general selection of flat and cross headed screwdrivers.
Skill level
Mechanical and electrical training including awareness of single and three
phase AC supplies.
Time Less than two hours depending on equipment location and accessibility
Health and safety
WARNING: Prior to commencing any maintenance procedure, users must familiarise
themselves with the health & safety warnings noted in the planned maintenance and health
and safety sections of the system handbooks KH-1601-1 or KH-1601-2.
Prior to carrying out planned maintenance, the system must be fully isolated and
disconnected from all single and 3-phase AC supplies. See system isolation in the planned
maintenance section of the system handbook KH-1601-2.
Warning: When powered lethal voltages are present on the terminals and within the
inverter.