1. Test fire inspection.
Fire test is a common method for checking circuit faults. Its features are quick and easy. It is through the terminal short-circuit to the body, or the wiring and terminal contact test to observe whether there is a spark, determine the current supply and open. Note that improper use of the fire test will damage the electrical equipment. The test fire method is generally only applicable to circuit inspection under the condition of independent power supply of the battery. When using it, it must be pulled out within a short time. Check with a little copper wire and must not be used continuously for a long time. It is forbidden to use the fire test method in circuits or alternators equipped with electronic components. Otherwise, electronic components or rectifiers will be burned due to excessive current.
2. Check inspection.
Inspection and inspection is a method for accurately diagnosing faults by testing various parameters of circuit components through instruments, meters, and gauges, and comparing them with normal technical parameters. The commonly used instruments for inspection and inspection are multimeters. 1 Voltage detection check. According to the current form of the circuit under test, the multimeter is placed in DC voltage range or AC voltage range to form a DC voltmeter or AC voltmeter and connected between the measured point and the ground. The measurement of the circuit voltage is used to determine the electrical components. Function and circuit connection are normal. If you don't have a meter at hand, you can use a test light instead of an experiment. Touch the test light to the output of the generator and the battery and pass the light intensity of the test lamp to determine the current condition of the generator and the battery. 2 resistance test inspection. Disconnect the circuit under test, place the multimeter in ohm file to construct an ohmmeter, and connect the two ends of the circuit under test to determine whether there is any open or short circuit fault in the device under test or the wire. 3 current detection check. A typical multimeter can only measure DC current. During the test, the circuit to be tested is disconnected, the current meter is connected in series to the circuit under test, and the current of the circuit is detected to determine whether the performance of the circuit element and the wire connection are good.
3. Analysis and inspection.
Analytical checks are a method used to check circuit faults. It is based on the abnormal performance of the fault, combined with the characteristics of the circuit to conduct a comprehensive analysis to determine the scope of the fault. If the electric lock is turned on, the electric horn does not sound when the horn button is pressed, but the turn signal is on when the turn signal is turned on, indicating that the power supply circuit above the electric lock is normal, and the fault may occur on the electric horn, the horn button and its line.
4. Replace the check.
Replacement inspection means that the impact of the performance of some components on the normal operation of the circuit when checking the maintenance circuit is doubtful, but the degree of performance is still difficult to judge. Therefore, a good component is selected to replace it, and a comparative method is used. A method of determining a fault. If the regulator does not function properly during the inspection process, the charging current is unstable and can be replaced with a new one with good performance or one that has been verified to work properly on other vehicles. At this point, the charge returns to normal, indicating that the original regulator has a fault and should be replaced or repaired. If the normal charging cannot be resumed, the generator or charging line is faulty.
5. Short check.
Also called a bypass check, it is to connect one end of a wire to the power supply device, and the other end to touch each connector of the electrical equipment, or to use a wire to short-circuit the components or wires that are suspected to be faulty. The reaction of the equipment, thus judging whether the circuit has short circuit and short circuit fault.
Raw Powder,Raw Herb Powder,Pine Pollen Powder,Panax Ginseng Powder,Zhi mu Powder
Xi'an JCF Herb Technology Development Co., Ltd , https://www.jcfherb.com