Recommended Maintenance And Lubrication - Siemens SIMOSEC Operating Instructions Manual

832-6063.0 * MAINTENANCE SIMOSEC * REVISION 02
22.2

Recommended Maintenance and Lubrication

Periodic maintenance and lubrication should include all the tasks shown in table below.
1. Before any maintenance work is performed within primary compartments, make certain that the equipment is comple-
tely de-energized, tested, grounded, tagged or properly identified and released for work in an authorized manner.
2. Before starting work on the switchgear, the following should be completed on any equipment that will affect the area
of the work:
A. Disable remote control and automatic transfer schemes.
B. De-energize all direct and back feed power and control sources, test and ground.
C. Disconnect all voltage and control power transformers.
D. Open all disconnects.
E. Ground outgoing circuits.
3. Include the following items in your inspection procedure:
A. Check general condition of switchgear installation.
B. Inspect switchgear interior for accumulation of dust, dirt or any foreign matter.
C. Examine indicating lamps and replace as required.
D. Check terminal block contacts for loose connections.
E. Check instrument and control switches and inspect their contacts.
F. Check for proper condition of instrument transformers. Replace burned out fuses, if any. Check primary and
secondary connections.
G. Remove dust and other contaminants from all insulators and insulation.
H. Inspect bus bars and connections for proper condition. If bus bars are overheating check for poor or loose con-
nections or for overload.
I. Examine all safety interlocks.
J. Check space heaters and thermostat (if equipped) for proper operation.
K. Maintain other equipment per their respective instruction book requirements.
L. Replace, reassemble, re-insulate, return all items to proper operating conditions and remove grounds prior to
energization.
The list of tasks in the table does not represent an exhaustive survey of maintenance
steps necessary to ensure safe operation of the equipment. Particular applications may
require further procedures. Should further information be desired or should particular
problems arise which are not covered sufficiently for the Purchaser's purposes, the
matter should be referred to the local Siemens sales office.
Maintenance
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