COLLIMATION OF ALINEMENT DEVICE

TM 9-4931-710-14&P

5-8

COLLIMATION

AND

INSPECTION

CONTINUED

COLLIMATION OF ALINEMENT DEVICE

WARNING

The cap assembly contains tritium gas (H3). A radiation hazard will exist if

light source is broken. Follow radiation hazard procedures on warning page.

Install alinement device (1) on dovetail adapter (2).

While looking through the dioptometer (3), at the back of the projector collimator (4), adjust

the objective cell (5), in or out, to remove parallax.

While Iooking through the backside of projector collimator (4), adjust four set screws(6) until

the alinement device reticle (7) becomes superimposed with the projector collimator reticle.