We may have found other answers which could help you.
Click here for Change Belt Upright
need diragram for a Eureka The Boss Pro?
Vaccum, Eureka Model 6998 A?
How to fix idler clamp assembly (hardwood/carpet switch) on Eureka SmartVac?
Older Eureka Boss Possilbe short?
Eureka Model 4870 Motor Replacement?
Eureka "boss" #5893 stops sucking after 10mins?