OM-2244 / Operation and Maintenance Manual
DCS-600/ Series 500082 / Solid State Transformer-Rectifiers
1) General
The ITW GSE GPU is designed to be as maintenance free as possible. Therefore, there are few
maintenance requirements. Field maintenance of the GPU should be performed only by qualified service
personnel, and should be limited to cleaning and inspection of the unit and its components, as well as, the
replacement of lamps and fuses. All service and repair work, including testing and calibration, should be
referred to the ITW GSE Service Department, to an authorized service shop for ITW GSE equipment, or
to qualified electronic technicians.
2) Maintenance Schedule
Check cable connections (internal)
* CONTROLS AND INSTRUMENTS
Check voltmeter functioning
Check ammeter functioning
Check fan thermostat operation
Check starting current limit functioning
Check all output contactor contacts
Check power input contactor contacts
Check voltmeter & ammeter accuracy
Check all wiring and connections
Inspect and clean general (light duty)
Inspect and clean general (severe duty)
See Lubrication section below
*Suspicious performance overrides timetable
Figure 1 Inspection Schedule