0+ (Unillustrated Parts)  
1+ Speed control actuator pump  
2+ Dump valve  
3+ Speed control actuator  
4+ Vacuum hose  
6+ T-piece  
7+ Vacuum pump spacer  
8+ Self locking nut  
9+ Flanged nut  
10+ Lock washer  

The part numbers in the assembly image below relate to the product number in the table. Clicking on the part number will open up the relevant part details.