Prevention 
 The basic rack is filled with the compressed gas – do not assort this detail. If it failed, replace a rack new. 
  The back door weighs quite a lot therefore it is difficult for holding during replacement of basic racks. For carrying out this procedure, at least, two persons are necessary. 
 
Replacement 
 
 
 |   PERFORMANCE ORDER   | 
  
 
 
 
 
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 1. Open a back door and fix it in open situation. Unscrew bolts on the ends disconnect a rack from a back door. | 
  
 
 | 2. Installation is made in return sequence. | 
  
  
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