For clarification... I didn't say it was impossible to learn to repair a Rollei. Obviously, I and numerous others have done it.
What I'm saying is that an inexperienced individual, regardless of inate talent or past experience, is not going to sit down at
the kitchen table with this camera after church on Sunday, and be done and have the table cleaned off for supper.
The tools are just as important as the instructions. You can't skimp on tools; they must be right.
If you use oil other than that specified, use sewing machine oil. It's by far the best light oil available for consumers. No manufacturer
would risk raising the ire of half the housewives in the world by selling a shoddy product. That would be suicide, quite literally.
For a mid-weight grease use molybdenum disulphide, commonly called MolyDee. It's a dark grey paste.
Absolutely DO NOT USE graphite in any form. It's the worst stuff in the world; highly abrasive.