Stainless Search light adjustment
 

I have a stainless search light spot/flood on the front of my boat. (not sure of the brand beings my boat is a 1980) and I just finished installing a new rotator switch. Now my issue is if the light is on then it will rotate left/right and down with no issue but when I hit up it moves just slightly. Now if i turn the light off it has full range of movement. up and down work great. is their some kind of adjustment inside of the light that I need to tighten to maybe get that to catch correctly?