I would not dream of taking the head apart myself (unless I had to) and the manual does not mention dissasembling the head in place. Although, we already know that what the manuals shows is not always the best way to do things or the quickest
Besides, the typical machinist has assembled and disassembled more heads than I have (which is none). Therefore, I did let him do mine.
Your method worked for you and my method worked for me. I think we just have different dreams.
