1. Conventional inspection method

Observation method: Observe the appearance, exhaust color, oil, and water condition of the walking tractor with the naked eye to check whether there are abnormal conditions such as water leakage, air leakage, oil leakage, etc. At the same time, you can also observe the surface condition of the body and whether there is gas coming out of the crankcase vent to judge the operating status of the machine.

Listening method: After starting the tractor, listen to the sound of the chassis, engine, and other parts through your ears to judge whether there are abnormal sounds, such as metal knocking, friction, etc.

Touch method: By touching the body, parts, and other parts of the tractor, feel its temperature, vibration, and other conditions, and judge whether the machine is running normally. For example, if the temperature of a component is too high, it may indicate that the component is faulty or worn.

2. Professional inspection method

Ultrasonic detection method: Use ultrasonic detectors to detect tractor parts. When the ultrasonic wave passes through the detected part, if there is invisible damage on the part, it will be reflected on the tester. By observing the display results of the tester, the damage location and degree of the parts can be clearly determined.

Magnetic detection method: A magnetic detector is used to magnetize the parts to be tested. When the magnetic lines pass through the parts to be tested, if there are cracks on the surface, the magnetic lines will deviate or interrupt at the crack site to form magnetic poles. At this time, granular iron powder with a specification of 2~5um is sprinkled on the parts to be tested, and the iron powder will be magnetized and attached to the crack, thereby showing the location and size of the crack.

Comparison analysis method: When the tractor fails or is abnormal, the faulty or abnormal parts are compared and analyzed with the symmetrical same parts. By comparing the changes in the same parts, it can be determined whether they are in a normal state and whether faulty or abnormal parts can be replaced in time.

3. Comprehensive detection method

Machine parameter determination: Including the determination of parameters such as machine size, filling volume, mass, and center of mass coordinates. The determination of these parameters can reflect the overall performance and operating status of the tractor.

Engine performance detection: Detect the engine's power, fuel consumption, emissions, and other indicators to determine whether the engine's operating status is normal.

Brake system detection: Detect the sensitivity and reliability of the brake system by simulating the brake operation. If the brake system is faulty or worn, it should be repaired or replaced in time.

Steering system detection: Detect the flexibility and accuracy of the steering system. If the steering system is faulty or worn, it will cause the tractor to deviate from the track or lose control during driving, so it should be repaired or replaced in time.

Gearbox function detection: Detect whether the gear shift of the gearbox is smooth and whether there are abnormal conditions such as abnormal noise. If the gearbox is faulty or worn, it will affect the driving speed and power output of the tractor, so it should be repaired or replaced in time.

IV. Other detection methods

Trial proof by contradiction: By changing the working conditions or working state of a certain part, observe whether the tractor has faults or abnormal changes, so as to analyze the corresponding faulty or abnormal parts. For example, if the tractor cannot start normally, it can be considered whether the cylinder liner is severely worn due to long-term work, causing abnormal compression.

Professional equipment detection: Use professional detection equipment and tools to detect the hand-held tractor. These equipment and tools can accurately measure the various performance indicators and parameters of the tractor, so as to more accurately judge its operating status and fault conditions.

In summary, there are many detection and inspection methods for the transport unit of the hand-held tractor, and the appropriate detection method should be selected for detection according to the actual situation. At the same time, relevant standards and specifications should be strictly observed during the testing process to ensure the accuracy and reliability of the test results.