Frequent Malfunctions Of Trailer Legs Are Mostly Caused By These Usage Habits

Trailer legs are key components that support the parking, loading, and unloading operations of the entire vehicle. Although their structure may seem simple, they are prone to shaking, jamming, deformation, oil leakage, gear wear, lifting failure, and other malfunctions due to improper operation. Many overseas fleets mistakenly believe that leg damage is a quality issue of the parts, but in reality, the vast majority of frequent failures stem from daily bad usage habits. Long term incorrect operation can accelerate leg mechanical wear, shorten service life, increase maintenance costs, and affect the efficiency of loading and unloading operations. Mastering the correct usage method to avoid poor operation is the key to extending the service life of trailer legs and reducing the failure rate. Forced lifting of legs is the most common damage misconception. Many drivers directly operate leg lifting and unloading when the vehicle is fully loaded with goods. The pressure is concentrated on the leg screw gear and housing, which can easily cause gear teeth to break and the screw to bend internally. Bearing deformation In the later stage of cracking of the shell, there may be lifting lag, heavy hand cranking, or even complete jamming that cannot be operated correctly. It is necessary to ensure that the support legs are retracted and extended under no load or light load. Heavy load, hard support, and hard top are strictly prohibited. In addition, uneven ground can easily cause uneven wear and deformation of the support legs. Overseas construction sites have potholes and soft roads, and many drivers directly park the support legs, resulting in uneven force distribution on one side of the support legs. The center of gravity of the whole vehicle tilts, and the support legs are under excessive pressure on one side. Over time, the support legs will be twisted, the base will deform, and the weld seam will crack severely. When parking a trailer, it is necessary to choose a flat, hard, and solid road surface. Soft ground needs to be laid with cushion plates to ensure that the two legs are evenly stressed and avoid damage to Incomplete leg support, half hanging and half falling driving, bumpy road vehicles Vibration can directly collide with road protrusions, causing the legs to bend and deform. At the same time, protruding legs are prone to road scraping accidents, not only damaging equipment but also posing safety risks. Before driving, it is necessary to confirm that the legs are fully retracted and locked in placeFourth, long-term lack of maintenance, lack of oil, lack of lubrication, accelerated internal wear, trailer legs, internal gears, screw bearings, need butter lubrication. Long term outdoor exposure to rainwater, dust, mud and water entering the internal lubricating grease, drying up and clumping. Failure to timely replenish oil and maintenance can cause hand cranking dryness, abnormal noise, jamming, rusting, and lagging. Many overseas fleets have zero maintenance all year round, which leads to the legs getting more and more stuck. Later, they are directly scrapped. Regular addition of lubricating grease to clean up internal impurities and maintain mechanical smoothness can greatly reduce the probability of failure. Fifth, unilateral operation can cause uneven force on the legs. Many drivers are accustomed to shaking only one side of the leg to level it. Long term unilateral force can cause the frame to twist. The degree of wear on the leg gears is inconsistent. Both sides of the lifting are not synchronized. Later, tilting and lagging may occur. It is Part of the fleet has been parked for a long time, allowing the support legs to remain idle for an extended period The spring screw that supports the weight of the entire vehicle is continuously in a fatigue and compression state. Over time, the elastic attenuation and deformation intensify, leading to lifting failure. For daily long-term parking, it is necessary to appropriately release pressure to avoid static long-term load. Many trailer legs are frequently repaired, which is not a product quality defect but a damage accumulated from long-term poor operation. Overseas transportation fleets want to reduce leg failures and reduce operation and maintenance costs. It is necessary to standardize daily operating habits to prevent incorrect operations such as uneven lifting and uneven ground, inadequate leg retraction, lack of oil maintenance, etc. From the source of use, the failure rate is reduced effectively, and the service life of trailer legs is extended to improve the overall stability of the vehicle