| 1. Remove the case of a butterfly valve and an intermediate flange. | 
 
 |  | 
 | 
 
 | 2. Disconnect water and vacuum hoses from an inlet collector | 
 
 |  |  | 
 
 | 3. Turn off bolts and a nut and remove a fixing arm of a heating element of an inlet collector. | 
 
 |  |  | 
 
 | 4. Remove a washer and disconnect the socket of connection of a heating element. | 
 
 |  | 5. Turn off fixing bolts and remove them. | 
 
 |  | 6. Remove an inlet collector. | 
 
 |  |  | 
 
 | 7. Remove laying and a sealing ring. | 
 
 |  | 8. Turn off fixing bolts and remove a heating element if it is necessary. |