I don't know about your specific saw but Harborfeight.com has online manuals for most of their tools, including mitre saws. Since they are all so similar probably adjustments and uses would be similar enough to be useful. If you need the manual for specific replacement parts like motor brushes perhaps just taking the saw to a repair shop is necessary.
Download a manual by clicking on the green tab near bottom of the page
http://www.harborfreight.com/cpi/cta...emnumber=98194