| 1. Remove a combination of devices. |
| 2. For removal of a bulb of an incandescence turn a cartridge of a bulb counter-clockwise and take it from a combination of devices. Take a bulb from the boss, having pulled it on itself. Pay attention that some bulbs cannot be taken from the boss. |
| 3. At installation of new bulbs be convinced that new bulbs just the same, as well as removed that is especially important for control bulbs of an ignition/battery charging. |
| 4. Establish a cartridge with a bulb in a combination of devices and turn it clockwise, then establish a combination of devices. |