Believe it or not, I found the &^%$## manual! If you still need a copy will scan and get to you SOMEHOW!
JRude
May 2008
Better yet! Go here, downloadable pdf file.
http://search.cartserver.com/search/search.cgi?cartid=a-8671&category=MurrayPDF&maxhits=5&keywords=30550X+92&go=GO%21
JRude
August 2007
I have a manual for that model. Date is 0071. SHould be mostly same. I have to FIND it! In the meantime, go here;
http://partsandservice.com/html/Murray/rm/rm30550x92c.html
You can find parts diagrams here. When I find manual will scan and send by email. Will be small file. J. R.