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GAS a 2705/gazelleГАЗ-2705, ГАЗ-2705 "Kombi"Introduction + 1. Car nameplate data 2. Specifications and characteristics of cars 3. Controls and devices + 4. The engine + 5. Transmission + 6. A running gear + 7. A steering - 8. Brake system Possible malfunctions of brake systems and ways of their elimination Working brake system Spare brake system + The vacuum amplifier The main brake cylinder Pressure regulator Brake mechanisms of forward wheels Brake mechanisms of back wheels Lay brake system - Maintenance service and repair of brake systems Check of working brake system Filling with a liquid of brake system. Removal of air from brake system (prorolling) Replacement колодок brake mechanisms of forward wheels Replacement колодок brake mechanisms of back wheels Adjustment of a regulator of pressure Adjustment of a drive of a lay brake Repair of the vacuum amplifier Repair of the main brake cylinder Repair of a regulator of pressure Brake pedal Repair of the brake mechanism of a forward wheel Repair of brake mechanisms of back wheels + 9. An electric equipment + 10. A car body + 11. Car maintenance service + Appendices |
"Gazelle" Gas-2705>> Brake system>> Maintenance service and repair of brake systems>> Replacement колодок brake mechanisms of back wheels At car operation it is necessary to check periodically a condition of brake drums, brake колодок, coupling springs, the protective covers influencing working capacity of brake mechanisms. In process of deterioration of brake overlays the backlash between them and drums is supported automatically and does not require additional adjustment.
Degree of deterioration of brake overlays should be supervised through viewing apertures in a brake board 4 (fig. 8.6 see), preliminary having removed заглушки 22. Колодки it is necessary to replace new if the thickness of an overlay has decreased to 1 mm in an observation port zone.
Колодки it is necessary to replace in a following order:
- To remove wheels;
- To clear brake mechanisms of a dirt and to be convinced of free rotation of a brake drum;
- To turn out three screws and to remove a drum from a nave. If the drum sits hardly to screw in carving apertures three bolts М10 and, serially rotating them, to remove a drum. At removal of drums it is necessary to mean that they are processed in gathering with a nave and consequently is inadmissible to interchange the position of them. That the drum could be established on a nave only in one position, apertures of its fastening to a nave are located non-uniformly. It is necessary to remember that if from the car to remove at least one drum it is not necessary to press a brake pedal as thus pistons leave wheel cylinders and the brake liquid will flow out from system;
- To remove the top and bottom coupling springs колодок, springs of lateral fixing колодок;
- To remove worn out колодки with details of a lay brake;
- To shift persistent rings and pistons in the cylinder on identical size from end faces of the cylinder before contact of pistons. For this purpose it is necessary to put to a piston core aluminium or copper оправку and easy blows of a hammer to move шоршни;
- To collect new колодки with details of a lay brake, having adjusted разжимное a link for the minimum length;
- To establish new колодки, coupling springs and springs of lateral fixing колодок. Колодки the top ends should enter into cuts of cores;
- To establish brake drums, preliminary having greased a landing corbel with graphitic greasing or Litol-24.
- To press a pedal of a brake effort 150—200 Н (15—20 кгс) at the working engine to choose backlashes in automatic adjustment. To release a pedal.
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