3. Rotate around central Vertical axis
Loosen the 4 bolts E . Rotate/adjust the projector clockwise or anti clockwise. Tighten the 4 bolts E to secure the position.
4. Rotate around central Horizontal axis
Loosen the 4 bolts F . Adjust the motion precisely by moving bolt G clockwise or anti clockwise. Tighten the 4 bolts F to secure the position.