Pic. 7.1. Front suspension assembly: 1 – a nut of fastening of the top support of a rack; 2 - bolt; 3 – the top support of a rack of a forward suspension bracket; 4 - bearing of the upper support of the rack; 5 – the top isolating lining of a spring; 6 – front suspension spring; 7 - protective cover; 8 - telescopic rack assembly; 9, 10 - nuts for attaching the rack to the steering knuckle; 11 - a bolt with an eccentric; 12 - bolt; 13 – rotary fist; 14 - front wheel drive shaft; 15 - stabilizer bar; 16 - lever; 17 - stretching; 18 - ball bearing; 19 - hub; 20 – a nut of fastening of a nave; 21 - brake disc; 22 - front suspension compression stroke buffer; 23 - the upper cup of the spring; 24 - limiter of the compression stroke of the upper support of the rack; 25 - stroke limiter of the upper support of the rack
The main suspension element is a hydraulic telescopic shock absorber strut 8 (pic. 7.1), the lower part of which is connected to the steering knuckle 13 with two bolts 11 and 12. The upper bolt 11, passing through the oval hole of the rack bracket, has an eccentric belt and a washer. Turning the top bolt changes the camber of the front wheel.
A twisted barrel-shaped spring 6, a polyurethane foam buffer 22 of the compression stroke and an upper support 3 of the rack assembly with a bearing 4 are installed on the telescopic rack.
The upper support is attached with three self-locking nuts to the body mudguard strut. Due to its elasticity, the support ensures the swing of the rack during suspension strokes and dampens high-frequency vibrations. The bearing built into it allows the rack to turn along with the steered wheels. Parts of a telescopic hydraulic shock absorber are mounted in the rack body.
The lower part of the steering knuckle is connected by a ball joint 18 with the lower suspension arm 16. Braking and traction forces are perceived by longitudinal extensions 17, which are connected through rubber-metal hinges to the lower levers and to the front supports of the front suspension cross member. Adjusting washers are installed at the junctions of the extension with the lever and the front support, which regulate the angle of the longitudinal inclination of the axis of rotation.
Pic. 7.2. Steering knuckle and front wheel hub parts: 1 – a rotary fist; 2 - outer mud-reflecting ring; 3 - hub bearing; 4 - wheel hub; 5 - thrust washer; 6 - nut; 7 - retaining rings; 8 - internal dirt-reflecting ring
In the turning knuckle (pic. 7.2) a double-row angular contact bearing 3 of a closed type is mounted, on the inner rings of which the wheel hub 4 is installed with an interference fit. The bearing is tightened with a nut 6 on the shank of the outer hinge housing of the wheel drive and is not adjustable. All nuts for fastening the front and rear wheel hubs are the same and have a right-hand thread.
The anti-roll bar is a 15 bar (see fig. 7.1), the knees of which are connected through racks with rubber and rubber-metal hinges to the lower suspension arms 16. Medium (torsion) part of the rod is attached to the body with brackets through rubber cushions.