car ZIL-131
Symptom - Remedy
The generator does not provide charging current
Malfunction in the circuit generator - relay-regulator - battery or in the ground circuit - Find damage in the wiring or contacts and eliminate it:

The vehicle's electrical system is single-wire, with a nominal voltage of 12 V; the negative terminals of the current sources are connected to the body ("vehicle ground")

Check the angular free play of the steering wheel daily with the engine idling by rocking the steering wheel back and forth until the steering wheels begin to turn.

Power steering pump 1 with a reservoir is mounted on the engine and is driven through a pulley by a V-belt from a pulley located on the front end of the crankshaft