| 1. Uncover 4 (see rice. Cooling system radiator) broad tank. |
| 2. Clear an internal surface of a cover of pollution. |
| 3. Establish a stopper on the tester representing the manual piston pump with the manometer. |
| 4. Increase the tester pump pressure to 0,12 MPas. During 10 about pressure should not decrease. |
| 5. Increase pressure to 0,15 MPas: the final valve has to open, pit pressure to 0,12 MPas and be closed. |