Hummer H1 - how do I re-adjust the headlights?

Does anyone know where I can find the procedures for re-adjusting the headlights on a Hummer H1? I notice that it has the nubs for using a mechanical aim device, but I don't have access to such a contraption.

Where are the verticle and horizontal adjustments?

Thanks in advance

Do you mean how do you physically adjust them?  On my '95 there are two holes in the ring around the headlight, one at 12 o'clock and another at 9 o'clock.  In each hole is a flathead (slotted) screw that can be turned to adjust the headlight with a screwdriver...