Remove both fastening clamp (1) and slide back the rubber boot (2).
Release the spring washer (3) and with a hammer with soft brisk knock down pins with the swivel shaft (4).
Using a suitable press remove the bushing (5).
Wipe the removed components, replace defective components.
Installation is in the reverse order - the sleeve (5), before landing on the shaft should be heated to a temperature of 160 ÷ 180 ?� C. Do not forget to fill the hinge unit durable grease (000 989 63 51).