Unrestricted     88                   A5E43486667A_AB 
 Only install motors for Zone 2 in hazardous areas, according to the 
regulations laid down by the responsible regulatory body. They are 
responsible for determining the hazard level of each area (division 2 zones).  
  ● If there are no other specifications examination certificates or on 
the rating plate regarding operating mode and tolerance, electrical machines 
are designed for continuous duty and normal starting procedures that are 
performed infrequently and do not result in excessive temperature rise. Only 
use these machines for the operating mode specified on the rating plate.  
   
 Safety instructions for cleaning. 
  To ensure problem-free machine cooling, the air ducts (ventilation 
grilles, channels, cooling fins, tubes) must be free of pollution.  
 
Risk of explosion when cleaning with compressed air. 
 If you clean the machine with compressed air, plastic components may 
become statically charged and ignite a potentially explosive atmosphere; an 
explosion can occur. This can result in death, serious injury or material 
damage.  
 • Do not use compressed air to clean motors when installed in hazardous 
zones! 
 
 
MAINTENANCE  10 
 
CAUTION: Failure to properly maintain the equipment can result in 
severe personal injury and product failure. The instructions contained herein 
should be carefully reviewed, understood and followed. If the right tools are 
not available or a major maintenance is required, it must be carried out only 
by personnel authorized by SIEMENS. Please contact your local SIEMENS 
sales office for more information our comprehensive maintenance solutions.  
 
Following maintenance procedures must be performed regularly: 
 
1.  Bearing lubrication. 
2.  Winding insulation resistance check. 
3.  Cleaning.