Front propeller shaft parts
1 – elastic coupling; 2 – centering sleeve; 3 – elastic coupling flange; 4 – oil seal; 5 – oil seal cage; 6 – cardan shaft; 7 – dust deflector; 8 – bearing; 9 – retaining ring; 10 – nut; 11 – cardan joint fork; 12 – dust deflector; 13 – elastic support
Assembling the cardan joint
1 – cardan joint fork; 3 – bearing housing; 4 – oil seal; 5 – crosspiece tenon; 6 – bearing needle; 7 – caliber 41.8734.4092; A, B, C, D – feeler gauge petals with a thickness of 1.53; 1,56; 1,59; 1,62
1. Assemble the cardan shafts in the reverse order of disassembly, taking into account the following instructions:
- apply FIOL-1 grease to the splined joints;
- when connecting parts, align the marks applied to the detachable parts before disassembling;
- after assembling the splined connection, pressing the seal by 0.3–0.5 mm with an axial load, squeeze the collar on the fork groove;
- tighten the front propeller shaft fork mounting nut with a torque wrench and secure it.
2. When assembling the intermediate support, press the bearing with a mandrel (1 – mandrel A.70045, 2 – bearing, 3 – elastic support) and install a retaining spring ring in the support groove.
3. Place the dust deflector 7 on the rear end of the front propeller shaft (see fig. Front propeller shaft parts).
4. Mandrel (1 – mandrel A.74035, 2 – elastic support; 3 - rear part of the front propeller shaft) press in the support with the bearing and put on the second dust deflector 12 (see fig. Front propeller shaft parts), press the fork 11 of the front propeller shaft onto the shaft and secure it with a nut as indicated above.
5. Assemble the cardan joint in the following order. Remove the old thickened grease, fill the cavities in the crosspiece pins and lubricate the inner surface of the bearing housings with FIOL-2U grease (0.4–0.6 g per bearing). Lubricate the crosspiece pins with a thin layer to prevent an air cushion from forming during assembly. Insert the crosspiece pins into the fork.
6. Place the bearing housings with needles on the crosspiece pins and press them into the fork holes with a force of 7840 N (800 kgf). Install the retaining rings in the fork grooves in their original places according to the marks. Then check the axial free play of the crosspiece, which should be 0.01–0.04 mm. If the free play is greater than specified, replace one retaining ring of thinner thickness with a ring of thicker thickness.
The original can be seen on the website VazBook
7. When replacing cardan joint parts, select retaining rings with a gauge of 41.7834.4092, which has four petals of different thickness (1.53 mm; 1.56 mm; 1.59 mm; 1.62 mm). To do this, install the retaining ring 2 (see fig. Cardan joint assembly) 1.56 mm thick.
8. When pressing in bearings, when the crosspiece rests against the bearing housing (in this case there are no gaps), use a feeler gauge to determine the distance between the bearing housing and the end face of the annular groove. Depending on the measured distance, taking into account the axial clearance of 0.01–0.04 mm, insert the second retaining ring of the appropriate thickness.
Please note: Retaining rings are supplied as spare parts in five sizes (by thickness, mm), each of which has a specific color: 1.50 - uncolored; 1.53 – dark brown; 1.56 – blue; 1.59 – black; 1.62 – yellow.
9. Having installed the retaining rings, hit the forks with a hammer with a plastic striker. Under the action of the impact and elastically compressed seals, the gap between the bearing bottom and the retaining ring is knocked out, and gaps appear between the bearing housings and the ends of the crosspiece pins. After assembly, check the ease of turning the hinge forks and the balance of the cardan transmission.