I've taken my winshield wiper vacuum motors out, cleaned, regreased etc. and they're ready to go back in. I ordered a set of rubber grommets to go in the holes where the controls come through. At least I think that's where they go, it's another one of those things the PO left off. The knob on the end of the on-off control unscrews easily but the one on the speed control seems to be stuck? Is the knob on the end supposed to come off or is there another way to get the panel with the grommet over it?
Thanks, HLW
