In the back bridge of type 7" satellites and semi-axial gear wheels of differential are changed. New satellites can be distinguished on strengthening on their outer side, and new semi-axial gear wheels have shorter teeths, without strengthenings.
Gear wheels of old and new types can be interchanged, but only completely. It is impossible to establish old and new gear wheels together.
Other information concerning a technical characteristic, adjustment and repair of the driveshaft and the back bridge is provided in section 7.
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