10-1 
10 Replacement Parts 
 
 
10.1 Introduction   
WATO EX-55/65 pro (0628/0627)anesthesia system can be divided into 18 parts according to its 
structure and functions. Each part contains several replaceable parts. Table 8-1 through Table 8-18 
provide the information about the replaceable parts and Diagram 8-1 through Diagram 8-14 give 
the positions of replaceable parts on WATO EX-55/65 pro (0628/0627). When selecting 
replaceable parts, consideration should be given to the characteristics of the parts, cost of 
replacement, and maintenance efficiency. When the parts whose sub components are not 
convenient to replace (such as the electrical component on the board) are faulty, replacing the 
board can improve the maintenance efficiency. For example, if a pressure gauge on the instrument 
panel is faulty, replacing the pressure gauge can reduce the cost. 
 
10.2 Ordering Replaceable Parts 
Provide the following information to order replaceable parts: 
  FRU code of the parts 
  Number of the parts in the document table 
  Description of the characteristics of the parts 
 
For example: P/N: 801-0631-00001-00 Auxiliary gas supply, No.1