Hi all , got the above machine which has developed a knocking sound.
I’ve listened inside and out ( had the back off) , doesn’t sound like anything between drum and casing (no sliding sound).
It’s a cross between a knock and low loud creak if that makes sense. On spinning the fly wheel the sound is in same place each time. No major movement in drum and seems to run freely. Noise definitely seems to be coming from the center.
Creaky bearing?
Cheers for looking
D