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how to adjust autometer 4415 fuel level gauge
How to adjust autometer 4415 fuel level gauge: The fuel gauge refers to the gauge of the amount of fuel in the fuel tank. The driver can estimate the mileage that can continue to travel and choose to add fuel according to the indicated number.
Fuel location:
There are many types of fuel gauges, such as bimetallic sensor-bimetallic fuel gauge, bimetallic 5-resistance fuel gauge, and resistance-coil fuel gauge.The sensor of the resistance-coil fuel gauge is a slide wire with a float.The varistor is on the top surface of the fuel tank. When the oil level changes, the float will drive the sliding contact arm of the sliding wire rheostat to rotate an angle.
As a result, the position of the contact on the resistance coil changes accordingly, and the resistance value connected in series on the fuel gauge changes directly, causing the current in the gauge to change and the needle to deflect.
Common faults of resistance-coil fuel gauges are:
Inaccurate indication, pointer hairpin and irregular pointer swing, etc. The main reasons for the inaccurate indication are:The float arm is bent, the wire insulation is damaged, the coil fixing screw in the watch is loose, and the coil is displaced. The float arm should be straightened, the broken link wire replaced, and the fuel gauge readjusted.The pointer hairpin is caused by the poor contact of the dry wire, not the contact between the pointer and the dial. Check each terminal and sensor resistance coil for loose joints and disconnection etc.
The reason for the irregular swing of the pointer is that the sensor resistance coil is loose and in series, and the contact arm is deformed and loses the elastic force to press the resistance coil. The sensor can be removed for inspection and repair. If the resistance coil is broken or its parts are damaged, it should be replaced sensor.
The fuel gauge that is out of balance can be adjusted as follows:
Take a new sensor, connect it to the fuel gauge and connect to the power supply. Hold the table upright on a vertical plank. Fix the sensor housing on a horizontal wooden board, lift the float arm to the highest position of the corresponding glaze surface, record the number indicated by the lower hand, then lower the float arm to the corresponding lowest position of the oil surface, and record the position of the needle. Then, place the float in the middle and note the pointer position.
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