 Horizontal roof plate of superstructure is made of several sections to provide necessary hatches.Openings are provided for fitting of commander's and gunner's cupolas, two access and evacuation hatches for engineer section, holes for radio set antenna, rotating periscope, driver's cover, refueling port and two lookout ports (for observation and for firing personal weapons).To perform engineering tasks, a tankgrade blade it fitted at the front, equipped with electric motor, pump and hydraulics.