Maintenance - Siemens UL 489 Operating Instructions Manual

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Maintenance

Hazardous voltage.
Will cause death, serious personal injury, or equipment/property damage.
Turn off and lock out all power supplying this equipment before working on this device.
Only qualified personnel should work on this equipment, after becoming thoroughly familiar with all warnings, safety
notices, and maintenance procedures contained herein and on the devices.
The successful and safe operation of this equipment is dependent on proper handling, installation, operation and 
maintenance.
High speed moving parts.
Can cause serious personal injury.
Discharge the closing spring before inspection and before carrying out any work on the circuit breaker.
Qualified Personnel
For the purpose of this instruction manual and these product labels, a
installation, construction and operation of the equipment and the hazards involved and who, 
in addition, has the following qualifications:
d) Is trained and authorized to energize, de-energize, clear, ground and label circuits and equipment in accordance with
established safety practices.
e) Is trained in the proper care and use of protective equipment in accordance with established safety practices.
f) Is trained in administering first aid.
The inspection procedure according to NEMA AB4, section 3, must be performed once a year.
The arc chutes and contact system must be inspected according to these operating instructions. If a fault condition opens the 
circuit breaker, the circuit breaker should be inspected before it is replaced into service.
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DANGER
WARNING
" qualified person " is one who is familiar with the