2.11. Check of a condition of the hoses located in a motor compartment.
The general data
1. Conditioner hoses are checked and vary only in car-care centre service.
10.2 Extraction of a scraper from щеткодержателя
2. Under the influence of heats in a motor compartment gradually there is a hardening and destruction of the rubber and plastic hoses which are ensuring functioning of various units of the engine. It is necessary to check periodically a condition of hoses, presence on them of cracks and hardening, easing of connections, tightness infringement. The procedure for test of hoses of system of cooling is described in section 9.
3. A part of hoses fasten by means of collars. Check durability of an inhaling of collars as fastening easing leads to tightness infringement. In those places in which collars are not provided, check reliability of consolidation of a hose on unions, elasticity loss in such connections owing to swelling or hardening of hoses is not supposed, tightness of connection otherwise is broken.
4. Vacuum hoses can be distinguished on colour, or on the colour strips pasted on them. For various systems of the engine vacuum hoses with various in the thickness of walls, resistance to compression by atmospheric pressure and thermal stability are used. At replacement track that new vacuum hoses in accuracy corresponded to the replaced.
5. Frequently the hose can be checked up only after removal from the car. If some hoses act in film, preliminary put labels on interfaced the union and hoses subsequently not to break their relative positioning.
6. At check of a condition of vacuum hoses at the same time examine also plastic tees. Check up presence on them of cracks, and also hose deformations in a place прилегания to the union of a tee which can cause tightness infringement.
12.1 Height (h) and a free wheeling () pedals of a brake 1. A pusher 2. The switch of a signal of braking З, 4 Counternut 5. A floor
7. For check of leaks listen through a piece of a hose with internal diameter about 6 mm, having put a hose to a checked place. Characteristic "hissing" will specify in leak presence.
8. Check up a condition of rubber fuel hoses, presence on them of damages.
9. At replacement of a fuel highway on инжекторных engines the new highway should correspond in accuracy applied in fuel system of engines of the given type.
10. At replacement of hoses always establish collars with screw fastening.
11. Metal tubes are usually used in a fuel highway for connection of the fuel pump with a regulator of pressure of fuel on a comb of atomizers. Check up presence on tubes of the braided sites and small arising cracks.
12. At replacement it is necessary to establish only seamless steel tubes. Tubes from copper or aluminium do not approach, as do not maintain vibrating loadings from the engine.
13. Check up a condition of metal tubes and unions of system of a hydrodrive of brakes in junctions with the main brake cylinder and дозатором, presence of cracks and ослабших connections is not supposed.