10.17.3. Replacement of lamps in devices

1. Disconnect a wire from the minus plug of the rechargeable battery.
2. Take a cartridge with the replaced lamp from the device (see. "Replacement of devices").
3. Having pressed and having turned counterclockwise …
4. … take a lamp from the boss.
5. Establish a lamp and all earlier removed details as it should be, the return to removal.