| 1. System prorolling is required every time after carrying out of dismantling and assemblage of a highway of a hydrodrive of coupling. |
| 2. Fill a tank with a fresh brake liquid (use of the fulfilled liquid is forbidden). |
| 3. Lift the car. |
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4. Remove a cap, dress on the union of the cylinder a hose. Lower other end a hose in capacity filled with a brake liquid 5 see |
| 5. Ask the assistant to press a coupling pedal to the full and turn away the prorolling union on 1/2 turns. Tighten the union in the end of a course of a pedal according to the assistant. Ask the assistant to release a pedal slowly. |
| 6. Repeat procedure until then while the hose will not cease to leave air vials. Constantly watch level – the tank should be completely filled by a liquid. |
| 7. At the pressed pedal tighten the union, dress a cap and lower the car. Restore liquid level in a tank. |