Fig. 9.8. The external hinge of equal angular speeds in a section: 1 – hinge case; 2 – protective cover; 3 – steel rings

Diameter of the external hinge of equal angular speeds can make 81,0 or 90,0 mm. The external hinge with a diameter of 90,0 mm has stronger case and differs from the hinge with a diameter of 81,0 mm in a protective cover and existence in a protective cover of two steel rings  (fig. 9.8) .

You carry out removal of the external hinge in the following order;

– remove collars of fastening of a protective cover and shift a cover from the hinge on a power shaft;

– carefully clear an internal part of the hinge and remove a spring lock ring from the inside of the hinge;

Fig. 9.9. Removal of the external hinge from a shaft of the drive of wheels

– fix a power shaft in a vice with soft sponges and the aluminum or copper hammer bring down the hinge from a power shaft (fig. 9.9) ;

– remove a spring lock ring, laying and a dish-shaped washer from the end of a power shaft.

You carry out installation of the external hinge in the following order;

– fill the internal hinge of 90 g of lubricant;

– establish on a power shaft a dish-shaped washer, the convex party to the hinge;

Fig. 9.10. Details of the external hinge: 1 – lock ring: 2 – laying; 3 – dish-shaped washer

– establish a new spring lock ring on a power shaft, fix a shaft in a vice with soft sponges and the aluminum or copper hammer fill the hinge on a power shaft, at the same time the lock ring has to enter precisely a flute on inside of the hinge (fig. 9.10) ;

Fig. 9.11. Fastening of a collar tool 1275

– install an antisplash cover on the hinge and fix it by collars (fig. 9.11) . Before fastening of a protective cover collars, the screw-driver

Fig. 9.12. Use of the special tool 1683 for fastening of the modernized collar: And – the screw of tightening of sponges of the tool; In – installation of the tool on a collar

raise an inner edge of a cover for alignment of pressure of air under a cover;

NOTE On cars with the 1,6 l petrol engines and turbodiesel engines since September, 1990 the modernized antisplash covers to which fastening the modernized collars are applied were established. The tool 1683 (fig. 9.12) is necessary for fastening of these collars .

– establish sponges of the tool on corners of a clip of a collar and in this situation tighten sponges the screw.