Trying to get some info. on this sickle mower ( owner's manual). Purchased last year and want to get it up and running. The only info. that I found on the mower was Mc Cormick International 100 Balanced mower.Also found these # on frame of mower 458888-r1 458891-r2. Never used a sickle mower but have heard they can be very dangerous. Just wondered if anyone could push in right direction. Many thanks Dwight.