Thanks so much for the images & instructions. My DC39 was making a loud screeching noise. Stripped right down to the motor. The motor & housing (and the outer filter housing) all have quite a lot of very fine grey dust over them.
I have taken a look at the bushes and both appear fine. The motor seems to turn OK by hand.
Would you think that the dust indicates a motor about to expire?
If so, Im presuming I need to clean the everything down to remove the dust before installing the new motor?
Many thanks for any help.