The manuals are invaluable if you plan to do any significant work at all. They will provide "order of operations detail" as well as specs that apply to your equipment. They assume the reader is familiar with the task at hand and they aren't without their own problems. They are translations from original manuals in Japanese I assume. There are times where the translation doesn't make complete sense. So, you need to be able to provide those bridges at times. But, you need it ----- unless you're paying someone else to do everything.