Rotate the central potentiometer clockwise to increase voltage and counter-clockwise to decrease it. Stability (STAB):
The is an electronic device that monitors the generator's output voltage and adjusts the exciter field current to maintain a constant voltage (typically 220V or 440V). It is known for being rugged and relatively simple to wire, making it a popular replacement part for older or generic alternator brands. Key Specifications Sensing Input: 190-240V AC. Power Input: 140-220V AC. Output: Max 5A (continuous) at 90V DC. Regulation: +/- 1% accuracy. Understanding the Wiring Terminals an-5-203 avr wiring diagram pdf
Completely shut down the engine and disconnect the battery before opening the AVR housing. an-5-203 avr wiring diagram pdf