So this is my Constellation, it's in great condition.
Came with original pipes and what's left of cleaning head.
The hose was damaged but easily fixed, went through the machine OK
Connection end is in good condition.
Lift the lid
3 screws hold the top plate on, with that removed you have access to the motor, It's only held by a rubber socket at the bottom and a rubber ring on the top.
Hmm hairy motor.
The hair was stuck in the veins of the fans, after pulling out as much as possible i burned the rest off with matches. The inside bottom of the motor was full of 40+ years of crap, after digging it out and sneezing like a maniac (dust allergy and vac reconditioning really don't go together) I put a drop of oil on top and bottom bearings and set the dc14 to work.
With it put back together I got the filter, I hand washed this as I didn't want to risk it falling apart in the wash.
Video of it below.