The driveline consists of a front 14 (pic. 76) and rear 21 cardan shafts, intermediate support 17, elastic coupling 23, two cardan joints and fork 22.
Front driveshaft
Manufactured from thin-walled steel tubing with slotted ends welded to both ends. A flange 7 is located on the splines of the front tip, which, through a rubber elastic coupling, is connected to the flange 2 of the driven shaft 10 with a dirt deflector 11 of the gearbox with six bolts 6. The alignment of the shafts to be connected is provided by a centering ring 15 pressed onto the end of the driven shaft, and a centering sleeve 4 pressed into flange 7 of the cardan shaft.
Ring 15 is fixed on the shaft with locking ring 16.
The spline connection is lubricated through a hole closed with a plug 18. The lubricant is retained by a rubber gland 9, which is placed in a steel cage 8, and on the other side by a seal 13, put on the nut 12.
The rear splined tip of the shaft 14 rests on the ball bearing 33 of the intermediate support. On the splines of the tip, the yoke 28 of the intermediate cardan joint is fixed with a nut 34.
Rear driveshaft
It is also made of a thin-walled pipe, at the ends of which forks of cardan joints are welded.
Intermediate elastic support
Absorbs driveline vibration. It consists of a bracket fixed to the cross member with 26 bolts and nuts. The crossbar, in turn, is fastened with nuts on bolts welded to the body. Steel spacer bushings 20 and rubber insulating bushings 19, pressed by washers, are installed on the bolts of the cross member. The bracket contains a rubber cushion, which is vulcanized to the surfaces of the bracket and bearing housing. In the bearing housing there is a radial ball bearing 33 with seals, which is fixed in the housing with a retaining ring 27. Dust deflectors 32 installed on both sides of the bearing protect the bearing from dirt. Litol-24 grease is put into the bearing during assembly and is not replenished during operation.
Elastic coupling
Absorbs noise and vibrations of the driveline. It is made of six rubber elements 3, between which there are metal inserts 5 with holes for bolts 1 and 6. The inserts have 6 protrusions, 3 of which go into the grooves of the gearbox driven shaft flange, and the rest into the grooves of the flexible coupling flange. This ensures that the flexible coupling is centered on the flanges.
Cardan joint. It consists of two forks fixed on the shafts 28 and 36, which are interconnected by a crosspiece 35. Needle bearing housings 30 are put on the hollow spikes of the crosspiece. The bearing of the crosspiece is sealed with an oil seal located in a metal cage 31.
Needle bearing assemblies are fixed in the holes of the forks with circlips 29, which are divided into 5 sizes according to the thickness. Each size is painted in a specific color; 1.62 mm - in yellow; 1.59 - in black; 1.56 - in blue; 1.52 - in dark brown; ring 1.50 mm unpainted. The selection of the retaining ring ensures the axial clearance of the cross in the range of 0.01-0.04 mm. The main dimensions of the mating parts and the limits of permissible wear in operation are given in Table. 10.