Tightness check, replacement of hoses of system of cooling

Tightness check

Radiator cover

Check of serviceability of functioning of the vacuum valve

PERFORMANCE ORDER

The vacuum valve built in a cover opens at education in a working path of system of cooling of depression. Having delayed down, open the vacuum valve of a cover of a radiator, - at an otpuskaniye the valve should be closed completely. Make sure of absence of mechanical damages of working surfaces and a sealing element of the valve. In case of need replace a cover.

Check of serviceability of functioning of the pressure head valve

PERFORMANCE ORDER

The pressure head valve at excess by pressure in system of some preset value provides a conclusion of excess of liquid from a radiator in a broad tank. Remove from space between the valve and its saddle traces of a scum and small garbage. Connect to a cover a special tester and start to pump up gradually pressure the handle of the last, - pressure should be stabilized at level of 0.75 ÷ 1.05 kgfs/cm2. Stop inflating, - pressure should keep at the reached level within not less than 10 seconds. In case of need replace a cover.

All path of system of cooling

PERFORMANCE ORDER

Establish a cover on a radiator. By means of the hose equipped with a transitional nozzle connect to a cover a special tester (see сопр. an illustration) also create in system pressure of 1.05 kgfs/cm2 (103 kPas). If pressure does not keep, attentively examine all shlangovy connections of an okhladitelny path on existence of signs of development of leaks. Make necessary corrections. Alternatively the tester can be connected directly to a radiator mouth which previously it is necessary to uncover.

Replacement of hoses

See also Sections Check of functioning of system of cooling and frost resistance of cooling liquid, replacement of liquid and Check of a condition and replacement of hoses of an impellent compartment, localization of leaks in Head the Current leaving and service.

PERFORMANCE ORDER

The conditions of components of system of cooling revealed in the course of check (see. Head the Current leaving and service) the damaged hoses are subject to replacement without fail. Merge liquid from cooling system (see. Head Current leaving and service). Weaken and take aside fixing collars. Accurately remove a hose from reception branch pipes. If the hose does not give in to removal, try повращать it, trying not to damage a branch pipe which breakage is fraught with considerable expenses, - remember that branch pipes of a radiator are among enough fragile components! In case of need the hose can be cut, - cost of a new hose is non-comparable to costs of acquisition of a replaceable radiator. Before cutting a hose, prepare a replaceable element suitable on a standard size. At installation of a new hose at first put on it collars and after it get on reception branch pipes. For simplification of installation of rigid hoses moisten internal surfaces of their ends with soap water or heat up in hot water, - in order to avoid stratifications do not lower a hose in boiling water. It will be reasonable to replace collars of coupling type screw/worm. After landing of a hose to branch pipes check correctness of its laying in an impellent compartment. Shift collars for the hose ends, having got them for a razvaltsovka of branch pipes, then tighten. Fill cooling system (see. Head Current leaving and service). Start the engine and make sure of lack of signs of development of leakages of cooling liquid in places of landing of a replaceable hose.