[Glenhuon (Bill)]

I've recently bought a S/H 150x750 newtonian, no instruction book but has an Andrews sticker on the black tube. Looks similar to the Celestron/Vixen OTA's. The collimation needs a little tweak but the only screws I can see are on the base of the tube and look like only cover plate screws. Are the adjusting screws under this plate? Loath to remove it as I might end up upsetting the whole alignment.