1、The instruction covers using method and maintenance common senses of sighting telescope.
2、Check whether connection between cable plug of sighting telescope and corresponding socket (XS1) is loose or not.
3、Lock adjusting mechanism of two connecting rods and two optical wedge lock nuts of sighting telescope center (No. 7 in Fig. 1).
4、CS/SW2B Type 30mm General Turret Comprehensive Gun Sight (hereinafter referred to as sighting telescope) is installed in PT99 type 30 turret.
