The Steps

basics of function
how does the camera usually operate; what parts do what and go where

the finder
removal, opening, cleaning

the back
assess, clean

shutter assembly
remove, open, adjust, clean

batteries
modify to accept 3v photo lithium or 2xAAA

completed
super sweet!

Completed

After a thorough cleaning these types of cameras can last for decades longer. If the film lasts that long, remains to be seen though.

Whether you chose to go with AAA or lithium, remove the batteries if you plan not to use the camera for a long time.

The lithium batteries should last a long time as they were meant typically to power much more power hungry cameras. The AAA option should yield typical results.

A good idea is to remember to replace your batteries once a year unless you use the camera all the time, in which case they will probably die before a year is up.

Enjoy you newly clean and fully functional automatic pack film camera!