Hebei Linfeng Machinery Manufacturing Blog

  A trailer axle maintenance guide ​ for transport fleets should combine daily driver checks with scheduled technician inspections, wheel-end servicing, alignment verification, brake testing, and documented defect escalation. The purpose is not only to prevent axle failure, but also to control tire expense, roadside recovery costs, trailer downtime, and safety risk across different operating conditions. Park on level ground, isolate the trailer, apply PPE, and use rated lifting equipment with jack stands before inspection. Check tires, wheels, hubs, bearings, seals, suspension, brakes, axle tubes, spindles, and fasteners in a fixed sequence. Match service intervals to mileage, trailer utilization, load severity, road conditions, climate, and previous defect history. Record inspection results, torque readings, lubrication dates, defects, repair decisions, and return-to-service authorization. Remove trailers from service immediately when cracks, excessive wheel play, overheating, sev...

 Learning how to lubricate Trailer Landing Gear helps prevent hard cranking, uneven support, and expensive gearbox damage. During an inspection of Semi Trailer Support Legs , check the grease points, landing-leg tubes, welds, mounting bolts, gearbox, crank handle, and foot plates—not only the visible screw. A practical landing gear maintenance schedule is usually every 90 days or 10,000 miles, with an additional inspection after heavy rain, salt exposure, overloading, or impact. The key components are grease, the gearbox, the crank handle, the worm gear, the thrust bearing, and the correct NLGI 2 EP lubricant. Trailer landing legs carry the front portion of a semitrailer when the tractor is disconnected. They are not designed to correct a badly uneven loading condition or lift a trailer with the landing gear alone. Lubrication reduces sliding and rolling friction inside the screw assembly and gearbox, while inspection detects structural or alignment problems before the legs collap...