Siemens SIMOTICS HV C Operating And Installation Instructions page 95

If the motor has to be transported, please observe the information and instructions in the
chapter "Transport (Page 27)".
Risk of explosion as a result of inadmissible repair work
Repairs are only permissible within the scope of the work described in these operating
instructions. Otherwise an explosion can occur in an explosive atmosphere. This can result in
death, serious injury or material damage.
● For repairs to go beyond this scope, please contact the Service Center.
See also
Service and Support (Page 111)
Maintenance and repair for machines, type of protection "Ex d/Ex db"
The machine marking based on IEC / EN 60079–0 was supplemented by the "X" symbol.
● Maintain the special conditions for repairs. The gap dimensions for the electric machine do
● Perform maintenance, repair and modification work on explosion-protected machines in
Work influencing explosion protection must be carried out by the manufacturer or by a specialist
workshop for electrical machinery authorized by the manufacturer. This includes the following
operations, for example:
● Repairs to the stator or rotor windings and to the terminals
● Repairs to the ventilation system
● Repairs to the bearings
● Dismantling machines with flameproof enclosures
● Connection work carried out in the terminal box
The operations must be identified by an additional repair plate carrying the following
information:
● Date
● Company carrying out repair
● Type of repair
● Reference number of the repair technician regarding repair work
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
Operating Instructions 06/2018
not comply with the standardized values in IEC / EN 60079–1. For repair work, obtain the
gap dimensions of the electrical machine from the manufacturer.
strict compliance with the corresponding national health and safety legislation, the safety
instructions and descriptions in the general maintenance instructions.
Maintenance
9.4 Corrective Maintenance
95