Went for a drive yesterday afternoon and came home in the dark for the first time. The headlights (supplied by M.K) were fine on dipped beam giving a fair amount of light and a good beam pattern, but on main beam the pattern was 10 - 12 feet in the air and well over to the near side !
Is it possible to adjust the main beam pattern without affecting the dipped beam pattern ? Is it a bulb problem ?
Has anybody else had a similar problem ?
Any advice appreciated.

Thanks, Si Hewitt

Depends on the unit but most cannot be altered as the high/dip beam is inside the same bulb. Make sure (if it's not sealed beam) that the bulb is seated correctly as the reflector will have a less pronounced effect on the high beam than of the dip due to the reflective surface of the glass.

If the dip beam is correct chances are the main is correct also.... double check your alignment doesn't sound right.