Lightly grease liquid oil, install a new ring (5).
Using a special mandrel (460 589 15 15 00) plant on the regular places new seals (6 and 7).
Rings without rubberised outer edge put on a sealant. Oil seal (6) is installed dressing disc mandrel (7) - disc without refueling.
Type in the space between the dust lip and sealing jaws of the outer gland (7) light grease. The same grease lightly grease sealing sponges and spring expander.