I have just stripped and rebuilt my old Hoover SC 186 however when switiching it on I find it does not have that much suction I also find that the small gauge on top is no longer working .
When I rebuilt the hoover I did not connect up the small rubber pipe coming from the speed controller , Does this rubber pipe need to be connected if so Where ?.
Due to its age I can find nothing on the internet so was wondering if any one here might know .
Many Thanks