The diagnosis and troubleshooting of agricultural machinery faults is relatively difficult. Some maintenance personnel have always used the method of replacement testing, regardless of the large or small parts, as long as they believe that the components that may cause the fault are replaced one by one, the results not only fail to eliminate the fault, but also replace the parts that should not be replaced at will, increasing the expenses of agricultural machinery users. Some faulty components can be completely restored to their technical performance through repair, without the need for complex repair processes. However, maintenance personnel require users to replace them with new parts and blindly adopt the "replacement repair" method, resulting in serious waste. The practice of blindly replacing parts and blindly replacing repairable parts mentioned above still exists to varying degrees in some repair units. During maintenance, the cause and location of the fault should be carefully analyzed and judged based on the fault phenomenon. For repairable components, repair methods should be adopted to restore technical performance, and blind replacement of components should be avoided. Failure to check the quality of new parts after assembly is a common issue Before replacing the parts, some maintenance personnel do not conduct technical inspections on the new parts and install them directly on agricultural machinery. This approach is unscientific. At present, the quality of agricultural machinery spare parts sold in the market is uneven, with some counterfeit and inferior parts being mixed up; There are also some accessories whose performance changes due to long inventory times, such as not being tested, which often cause malfunctions after assembly. Before replacing with new accessories, it is necessary to conduct necessary inspections and tests, including appearance and performance tests, to ensure that the new accessories are faultless and prevent unnecessary trouble caused by them.
Correct procedures for using grass grabbing machines: 1. Drivers must undergo technical training to familiarize themselves with the performance, construction, operation, and maintenance of loaders and grass grabbers. 2. It is strictly prohibited for drivers who are drunk or have mental disorders to operate the machine, and it is strictly prohibited to drive with illness or fatigue. 3. During driving operations, drivers need to concentrate and not look left or right. They should pay attention to the direction of travel and those working around them, and sound the horn to warn when there is danger. 4. During driving operations, passengers in the driver's cab are not allowed to overload, and passengers are strictly prohibited from other parts. 5. Before and after daily operations, a walkaround inspection is required to ensure the guarantee of operations. 6. Before starting, check the condition of fuel, cold water, lubricating oil, and hydraulic oil. If there is a leak, promptly handle it, and if there is a lack, adjust and supplement it in a timely manner. 7. Check if all connecting parts are worn or loose. Check if the tire pressure meets the regulations. Check the tension of the fan belt and check the air filter indicator. 8. Check whether the lighting, instruments, horns, and other components are normal. 9. The engine should not start for more than 5 seconds each time. If one start is unsuccessful, it must wait for 30 seconds before starting again. If three starts are unsuccessful, the cause should be checked and the fault should be resolved before starting again. 10. After starting, idle and idle the engine to check if all instruments are normal. If there are any abnormalities, stop the engine immediately to check the cause. The driver can only operate when the buzzer "beeps" and disappears without any abnormal vibration, noise, or odor. 11. Before operation, test the equipment and check if the steering, braking, and working systems are sensitive. 12. During driving, it is necessary to regularly pay attention to whether the index of each instrument meets the specified requirements. 13. When traveling, place the bucket at a height of about 0.5m above the ground; Do not lift the bucket too high to transport materials; Do not lift the bucket while driving. 14. When working on slopes or crossing obstacles such as ditches, slow down, make small corners, and be careful not to tip over. Advance uphill and retreat downhill.