English 
1957 ford gauge voltage
The car 1957 ford battery voltage gauge shows 12.9v, why does it indicate that the voltage is insufficient? It can be detected with a special battery tester. If the actual detected battery voltage is 12.9 volts, it indicates that the battery is normal, and the problem appears in your display system or circuit. If the battery voltage is not 12.9 volts, the problem may be the battery itself, the generator or the wiring.
The automobile 1957 ford electrical instrument is controlled by the ignition switch, and the meter head of each instrument is connected in series with its sensor The fuel gauge and water temperature gauge are also connected with the instrument voltage regulator ammeter in series between the positive electrode of the generator and the positive electrode of the battery. The charging current of the generator enters from the positive electrode of the ammeter, and the pointer is biased to the positive end. When the battery is discharged outward, the pointer is biased to the negative end. The following two currents do not pass through the ammeter: the load current exceeding the range of the ammeter, such as the starter glow plug and horn lamp current; the power supply current to other loads during normal operation of the generator. Note: when the generator is not working, the current supplied by the battery to other loads must pass through the ammeter: the voltmeter is connected after the ignition switch. The system voltage is displayed only when the ignition switch is turned on. 12V system often uses 10v-18v (24 electric system often uses 20v-36v voltmeter .
The indicator lamp and alarm lamp are usually assembled in the same assembly or arranged nearby with the instrument. They are controlled by the working gear and starting gear of the ignition switch together with the instrument. It shall be able to check whether most instruments, indicator lights and alarm lights are in good condition at the on position. The indicator and alarm lamp can be divided into two types according to the circuit connection method: one is that the bulb is connected to the ignition switch live wire, and the external sensor switch is connected: when the switch is connected, it forms a path with the grounding, and the lamp is on. For example, the charging indicator brake indicator lamp, brake liquid level alarm lamp, door open alarm oil pressure alarm low alarm lamp and other connection methods are the indicator bulb grounding, and the control signal is from the live wire end of other switches. High beam indicator, steering indicator, seat belt unfastened indicator, anti lock brake indicator (ABS, cruise control indicator, etc.
Get a Quote / Info