To set up your spot on sundial make sure the top of your plinth is level, (use a spirit level), then fix your base in the centre of the plinth with rawl plugs and screws.
Next, secure the gnomon to the dial plate using the 'U' shaped clip.
Insert the central fixing bolt and rotate until it seats. Dont tighten at this stage.
At solar noon (see top of page), rotate the dial face until the shadow, and line of light, falls at mid day then tighten the central bolt using the spanner provided. Your spot on sundial is now ready for use.