Frame double machine, dubbed “mouse”, welded from thin steel tubes. Front axle (Fig. 3) assembled from beams, two eyes and swing units of the front wheels. Axle are the axle adapted to pivot the sleeve at an angle of 98 ° and welded to it. Pivot arm has a bend of sheet steel with thickness 1.5 mm; pivot bushing it is attached by welding at an angle of 110°. Ring tail joints at the ends of the swivel levers are cut from steel pipe ø 12 mm.
The pivot bushing is provided with bronze bearing liners, through which is passed a pin pivotally connecting the sleeve with the lug of the front axle.
Wheel — steel, turned. In each are placed on two bearings (202 and 201), closed Salnikova washers.
The hub is fixed on the axis of the axle nut. Between the bearings inserted spacer.