Contents: Removal ↡ Installation ↡
Cross section of the central bearing of the drive shaft
1 - front shaft section; 2 - rear section of the shaft; 3 - clamping nut; 4 - rubber bushing; 5 - locking ring; 6 - protective cover; 7 - suspension bearing coupling; 8 - ball bearing; 9 - fork; 10 - crosspiece with needle bearing and bushing; 11 - body bottom; 12 - drive shaft corridor
Removal
1. Raise the vehicle.
2. Remove the exhaust pipe.
3. Loosen the mounting bolts and remove the shield from the bottom of the body.
4. Disconnect the parking brake cables and remove the lever mechanism from the underbody.
5. Using two wrenches, loosen the clamping nut on the front end of the cardan shaft by two turns. This will allow the shaft to move slightly.
6. Mark the position of the cardan shaft and flexible couplings (with chalk, paint).
7. Unscrew the bolts securing the intermediate support, front and rear flexible couplings from the gearbox and final drive. Lower the intermediate support onto a support (jack).
8. Fix the relative position of the splined joints (with paint) to ensure the balancing of the cardan shaft in the future.
9. Move the rear propeller shaft forward and disconnect it from the final drive flange.
10. Disconnect the front propeller shaft from the gearbox flange and remove the propeller shaft assembly from under the vehicle and place it on a support (tarpaulin) without separating the propeller shafts from each other.
Installation
Carry out installation in reverse order.
1. Place 6 g of refractory grease into the central recess of each of the centering bushings.
2. Insert the connecting bolts with their heads towards the center support and screw on new self-locking nuts.
3. Rotate the drive shaft several times to relieve tension. Check that the front and rear sections do not stick, then tighten the coupling nut to 10.0 kgf·m.
4. Finally tighten the center bearing bolts.
5. Install the wheels and lower the vehicle.
(Information copied from the website: «www.MercedesMan.ru»)