The movement and force from the universal joint - the steering shaft is transmitted by the steering gear to the rack, which changes the rotary motion to a straight one. The gear rack runs in the cylindrical cavity of the aluminum casting of the steering box. The gear is installed in the steering box in two rolling bearings. The gear rack is pressed against the gear by a spring acting through the airframe. The gear on the outer upper end has longitudinal thin splines and a semicircular groove along the circumference. The lower cardan joint of the steering shaft is planted on the splines. Mutual fastening is carried out by a bolt that passes through the hinge boss, gear groove and, after tightening, simultaneously compresses the hinge in the splined part.
The steering gear is lubricated with grease. Between the steering box and the side rods there are rubber cuffs that resist the action of lubrication and atmospheric influences.
To move the front wheels, the rack ends with bushings for ball joints (fingers) side control rods. These rods have threads on the outer ends (М12x1) for screwing locknuts (wrench 19 mm) and non-disassembled ends with vertically oriented ball pins. The ball pins are lubricated with grease. Their rods with a cone are inserted into the heads of the front wheel bearings. The conical connection is tightened with a M12x1.25 nut locked with a cotter pin 3.25x25. After loosening the nut, this connection can only be loosened with MP 7501.
On the round section of the side steering rods in one place, make a 12 mm hexagon wrench. By turning the rods (after loosening locknut) you can adjust their length and, consequently, the convergence of the front wheels (see subsection 10.4).
The steering unit belongs to the front axle group. It is attached to the beam by two elastic suspensions, which naturally limit the lateral movement of the steering wheel.
