Withdrawal
The operation of lifting and placing the vehicle on stands is dangerous! Therefore, before carrying out the operation, read Section Jacking and towing
1. Raise and place the vehicle on stands. Remove the exhaust system, refer to Section Removal and installation of the exhaust system.
2. Turn away bolts of fastening and remove heat-shielding screens -1- and -2- from the bottom.
3. Turn away bolts of fastening and disconnect an elastic coupling from a check point (arrows in the illustration). At the same time, hold the cardan shaft with a strap wrench from turning.
4. Turn away bolts of fastening and disconnect cardan shaft from a reducer of the back bridge (arrows in the illustration). Attention: To install the cardan shaft in its previous position, mark with paint the mutual position of the flanges of the cardan shaft and the gearbox.
5. Loosen the threaded ring a few turns (arrow illustration) on the sliding element with a large wrench. If no such wrench is available, loosen the threaded ring with a gas wrench.
6. Press the flange of the propeller shaft with a screwdriver from the rear axle gearbox. In this case, the cardan shaft is shifted at the sliding element (arrow illustration).
7. Loosen the mounting bolts -A- of the central bearing, refer to the illustration.
While doing this, hold the cardan shaft so that it does not fall. Do not drop the shaft into the hinges. In particular, at a constant velocity joint, the shaft can crush the rubber boot.
8. cardan shaft, consisting of three parts: Loosen the second threaded ring at the center bearing in the same way. Press the front flange of the cardan shaft back, while the cardan shaft moves.
9. Cardan shaft, consisting of three parts: Turn away bolts of fastening of the second central bearing to the bottom.
10. Slightly tilt down the cardan shaft at the central bearing and remove it from the centering pin at the gearbox.
Protect the propeller shaft constant velocity joint with a cover or plastic bag from contamination.
Installation
If there is vibration and noise coming from the cardan shaft, it must be balanced at the service station. In addition, you need to find out if the hinges are working. There are service stations that specialize in the repair of cardan shafts.
11. Replace the flexible sleeve if it is deformed or porous. To do this, unscrew the mounting bolts (arrows in the illustration). Insert the new coupling so that the arrows on the circle point towards the respective flange levers.
12. Visually check the centering element -4- of the cardan shafts before installation. Lubricate the centering element with grease "MOLYKOTE LONGTHERM 2 PLUS" or "OPTIMOL OLISTAMOLY 2". Replace the damaged element at a service station.
13. Insert the cardan shaft first from the front into the centering element and fasten with bolts without tightening.
14. Put the propeller shaft with extended joint on the flange of the rear axle reduction gear.
15. Lightly tighten the threaded ring at the sliding element of the cardan shaft with a torque of 10 Nm.
16. Evenly tighten nuts of fastening of a cardan shaft to a reducer, the forces resulted in Specifications. Use new self-locking nuts.
17. Tighten the cardan shaft to the gearbox flange with new self-locking nuts. The tightening torque depends on the strength class of the bolts, which is stamped on the head (refer to Specifications).
18. Fasten the central bearing to the bottom with a torque of 20 Nm.
19. Cardan shaft, consisting of three parts: Fix the second central bearing on the bottom with a torque of 20 Nm. Tighten the threaded ring to a torque of 10 Nm.
20. Install the exhaust system heat shield. Install the exhaust system, refer to Section Removal and installation of the exhaust system.