1990-2001 of release
Repair and car operation
+ Identification numbers of the car
+ Options and routine maintenance
+ The engine
+ Cooling and heating systems
+ The power supply system and release
+ Engine electric equipment
+ Control systems of the engine
- Manual transmission
- 5-step manual box of a gear change (РКПП)
The general information
Adjustment of a drive of a gear change
Removal and installation of the gauge-switch of fires of a backing
Removal and transmission installation
Major repairs РКПП
+ Automatic transmissions (АТ)
+ Distributing box
+ Coupling and трансмиссионная a line
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
5-step manual box of a gear change (РКПП)
The general informationAt the expense of the energy allocated at combustion in cylinders of an air-fuel mix a cranked shaft of the engine the twisting moment, thus frequency of its rotation develops lays within enough narrow range. The majority of modern engines of an OHV-design develop the maximum twisting moment at turns nearby 2500 in a minute. At increase in frequency of rotation of the engine to 4500 rpm the size of its twisting moment decreases, that the further increase in capacity is not obviously possible any more. Engines with the top arrangement of a camshaft (OHC) are capable to develop considerably больший twisting moment, however in much narrower range of frequencies of rotation.
Use in трансмиссионной lines of such component as the transmission allows to regulate mutual relation between turns of the engine and speed of rotation of driving wheels of the car, providing high enough return of the power unit practically in any conditions of operation of the car.
Smoothness of transfer of the twisting moment from a cranked shaft to a primary shaft of a manual box of a gear change (РКПП) is provided with coupling assemblage, the design and which principle of action are disassembled in the Head the Suspension bracket and a steering of the present Management. The consecutive gear change in the course of change of speed of movement of the car is provided at the expense of use in a transmission of a multistage reducer. Transfer relations of each of five steps РКПП provide peak efficiency of transfer of capacity developed by the engine to vehicle driving wheels. Not front-wheel models of a gear wheel of a primary shaft of a transmission transfer twisting moment developed by the engine to gear wheels of a secondary shaft which usually settles down hardly more low and away from the primary. Gear wheels of both shaft of all steps of forward transfers РКПП are in constant gearing, however continue to be turned freely on bearings before operation of coupling and corresponding synchronizers. At switching from one transfer on another in the course of movement there is a consecutive clearing of one gear wheels and blocking on a shaft of others. Blocking and отпускание gear wheels is carried out at the expense of operation rotating between them and shaft and equipped with stoppers муфт. In modern transmissions synchronisation of steps of switching of all forward transfers is provided. Frictional elements of synchronizers provide smoothness of introduction of corresponding gear wheels in gearing with shaft with preliminary alignment of turns gear lock муфт.
In view of complexity of design РКПП, absence on free sale of necessary replaceable internal components and necessity of use of the special equipment, composers of the present Management do not recommend to owners of cars to carry out transmission major repairs independently. Repair of a box in the conditions of a car-care centre workshop is enough expensive operation, in a kind of that, it is necessary to consider alternative variants of replacement of the failed block new or restored. Any helpful information on repair and transmission replacement can be received on company Mitsubishi car repair shops. Without dependence from the chosen way of elimination of problems (repair or replacement), independent dismantle of a box from the car will allow to reduce material inputs essentially.
In view of the Head told in a given Part the description of process of performance such, laying within qualification of the average mechanic-fan of procedures, as the general adjustment of a drive of a gear change and removal/installation of assemblage РКПП is offered to attention of the reader only.