Please do not turn this forum into a "we need manuals" place, as forklift manuals are almost all 'proprietary information' and protected by copyright.
The only legal and proper place to get manuals is the local dealer for that brand of forklift. [which is the answer to the OP's question as to 'where to -purchase- these manuals']
We can discuss specific questions and concerns, do you have a question?
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.