| 1. To nominate to itself a combination of devices, having disconnected only a cable of the drive of a speedometer and a vacuum tube (blocks with wires not to disconnect) (see subsection 12.1.5.15 and subsection 12.1.5.15). |
| 2. To connect a wire to the "minus" plug of the battery. |
| 3. To connect the voltmeter to contacts of "entrance" and "mass" of a voltage stabilizer from a reverse side of a combination of devices. |
| 4. To include ignition and to check tension. It has to be equal to battery tension. If the measured tension is much lower than battery tension, in a power-supply circuit of the stabilizer there is a break. |
| 5. To connect the voltmeter to contacts of "exit" and "weight", to include ignition and to check tension. It has to be 9,75–10,25 Century. If the measured tension differs from specified, it means that the voltage stabilizer is faulty and it needs to be replaced. |
| 6. To establish a combination of devices upside-down. |