I think there was a partial communication issue early in this thread. The device needed to rotate the reel adjusting nut (Item 3 in the instructions) is not a center punch but a pin punch, or a piece of steel rod of just the right diameter, or a drill bit of the right diameter provided you insert the plain end which normally goes into the drill chuck - do not insert the cutting end. The British traditionally called such devices "tommy bars". You will not be able to rotate the adjusting nut unless you have first loosened the central bolt (Item 2 in the instructions), directly above the adjusting nut but on the top of the mounting rail.
I recommend that you do some reading before you accept the direction in the instructions to bring the reel into light contact with the bedknife. Crude adjustment of this feature is probably the leading cause of blunt reels and bedknives. Whether you choose infinitely slight contact or no contact at all is a widely debated issue, but you never, never tolerate significant contact after the central bolt has been properly retightened. Note that you must have that bolt tight to be able to make any assessment of the adjustment.
If you are able to make the acquaintance of the greenkeeper of a bowls club, you may be able to actually watch him or her making the adjustment on a greens mower. However that is a boon that very few reel mower owners ever achieve - most have to learn the hard way, often blunting their reel a couple of times along the way. Personally I would not recommend watching someone at the local mower repairer making the adjustment, since most of them have never been taught to do it properly.
