Pic. 7-10. Voltage regulator RR-380: 1 - protective plate; 2 - additional resistor, 3 - bottom gasket with plug sockets «15» and «67»; 4 - cover gasket; 5 - throttle; 6 - nut for fastening racks; 7 - bottom contact post; 8 - top contact post; 9 - winding of the regulator; 10 - anchor, 11 - anchor spring; 12 - spring bracket; 13 - yoke; 14 - base
Pic. 7-11. Electrical diagram of the voltage regulator: 1 - throttle; 2 - thermocompensating resistor; 3 - winding of the regulator; 4 - additional resistors
Warnings
1. Do not confuse the wires connected to the plugs «15» and «67». If the wires are inadvertently mixed up, the regulator will not work and the upper contacts will be permanently closed. The voltage at the generator output will increase greatly, which will lead to violent «boil» batteries and damage to consumers. In addition, contact sintering will occur and the voltage regulator will have to be replaced.
2. Do not connect RFI capacitors to the circuit between the plugs «67» regulator and generator. This violates the working conditions of the contacts and they are quickly damaged.
3. Do not connect additional consumers of electricity to the power supply circuit of the excitation winding of the generator, as this will greatly increase the voltage of the generator.
4. It is not allowed to check the functionality of the regulator by short-circuiting its plugs «15» and «67». In this case, the generator voltage increases and the rectifier may be damaged.
5. Do not unnecessarily remove the regulator cover, so as not to violate the tightness of the seal. The ingress of moisture and various substances under the cover leads to contamination, burning of the contacts and disrupts the normal operation of the regulator. For this reason, all materials used in the regulator are tested for the absence of outgassing and when replacing the gasket, a new one should only be made of polyurethane, provided for by the design of the regulator.
6. The regulator must be kept clean and protected from accidental impacts that could interfere with its adjustment.
It is necessary to monitor the reliability of the connection of the regulator housing with «weight» through the mounting screws, as a bad connection increases the alternator voltage above normal.