Originally Posted by
Dalronix
I've just got hold of an 831 from the 80s and would like to learn more about it especially oiling and maintenance. The manual doesn't include those things.
You may be able to find the manual for the 830 online. A lot of the models had red painted dots where you are supposed to oil. If you see those red dots, oil there. Open the top of the machine and also the arm plate to look for the red dots.