Make sure you know what thread the new cones are and make sure the thread is good and clean and the compressor screws in OK before assembly. The write down whether they are metric or imperial in the front of your Haynes manual for reference for next time - that way you shouldn't bu66er the threads.
Unfortunally I didn't wind in the compressor enough, due to trying to get the trumpet/adjusta ride to sit sraight!

With Smootharides or red dot cones it might not be possible though as I think the rubber springs are taller on those.
That is correct.
