One thing I cannot stress enough is to take pictures.
When doing a pull down it may be several weeks before the parts are painted, replaced or refurbished so to rely on the frail human memory would be folly of the greatest risk.
Even to sub assemblies, I won't go into details but would offer this example of the blade engagement mechanism.

[Linked Image]

It had to be disassembled for cleaning & painting.
To refer back to the pictures meant that it would go back together first time not with a lot of experimenting and mistakes.


Quality is a direct experience, independent of and prior to intellectual abstractions.
R. Pirsig .