4.2. Check of tightness of the cooling system

PERFORMANCE ORDER
1. Wait so far the radiator will not be cooled up to the temperature of 38 °C, uncover a radiator and instead of it connect the device for check of tightness of the cooling system.
2. Create pressure of 139,3 kPa in the cooling system.
3. Make sure that pressure of 139,3 kPa in the cooling system remains within 2 min.

Prevention

Do not uncover a radiator on the hot engine as the coming-out vapors can lead to severe burns.
Close a radiator cover thick rags and slowly turn off a cover before emergence of hissing of the coming-out steam.
After the termination of a steam-out slowly turn off, and uncover a radiator.


4. Otherwise define the place of leak and eliminate it.