W203 since 2000 of release
Repair and car operation
+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
- Manual transmission
Removal and check point installation
Adjustment of a drive of management of a check point
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
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General informationGeneral view of RKPP
6-step RKPP 716.6
Competent use of the 6th transfer allows to achieve essential economy of fuel consumption at the expense of decrease in working turns of the engine. In view of design features.
6-step transmissions have bigger weight, than 5-step.
The box perceives a torque from the engine by means of usual coupling of the dry type equipped with the automatic jack of wear. The transmission has a tight design and is filled with transmission oil not needing replacement.
Accuracy and ease of switchings of transmission having a short course is reached by the following features of a design:
· Shtokovo-trosovoye execution of a drive of switching;
· Application of the central rod of switching fixed in needle bearings;
· Use of mnogokonusny synchronizers of switchings of the 1st, 2nd, 3rd and 4th transfers;
· Complete synchronization of a reverse gear.
Assemblies with shaft are located with Reduktornye between two bearing planes. The third bearing plane used in earlier 5-step boxes in this design is eliminated.
The two-section separate case is made of an easy alloy and pressurized by means of a special liquid compound.
The entrance shaft (1) is fixed in a flywheel by means of the directing bearing, and a transmission case - by means of the ball bearing with a profound flute. Main (2) and entrance (1) shaft are jointed among themselves in the general plane of a case of transmission and fixed by means of ball bearings with a profound flute.
The intermediate shaft (3) has the facilitated hollow design and is fixed in the roller coupling and the ball bearing with a profound flute.
In view of the minimum production admissions of semi-cases and gear wheels, and also at the expense of use of roller couplings, need for adjustment axial люфтов shaft disappears.
Movings of the lever of gear shifting are transferred through drafts to a box. The box can be removed without engine removal. To remove a box it is necessary at coupling removal, at replacement of a box or its repair. It is not recommended to carry out box repair in house conditions. Management of RKPP is described in Head the Operation manual.