If you remove the nut holding the pulley on you can get access to the upper spindle bearing but if the drive is oriented like shown in the pictures the platters will drop down and rest on the head arms damaging them. The bearings are preloaded with the spring which makes putting them back together difficult. I was holding the drive pulley but after it starts to get loose turning the nut wanted to spin the entire platter stack and not unscrew further. Spindle bearings are 6202 and motor bearings are 608Z.
Back to Previous page All of Freeing Quantum Q2040 Drive Heads: pictures
Feel free to contact me, David Gesswein djg@pdp8online.com with any questions, comments on the web site, or if you have related equipment, documentation, software etc. you are willing to part with. I am interested in anything PDP-8 related, computers, peripherals used with them, DEC or third party, or documentation.
PDP-8 Home Page PDP-8 Site Map PDP-8 Site Search