Views: 0 Author: Site Editor Publish Time: 2025-07-29 Origin: Site
Regular maintenance is the foundation of a reliable semi-trailer. Whether you’re running long hauls or operating regionally, staying on top of inspections and upkeep helps prevent unexpected breakdowns and extends the trailer's usable life.
Before hitting the road, a quick but thorough inspection can catch small issues before they become costly problems. Always look at tire condition, including inflation pressure and signs of wear or cuts. Check all lights—brake, tail, and turn signals—for proper function. Walk around the trailer to spot any fluid leaks, damaged hoses, or loose components. Brakes should respond properly without noise or vibration, and the hitch must lock securely.
Some parts require regular attention to ensure everything runs smoothly. Greasing wheel hubs, landing gear mechanisms, and suspension points helps avoid premature wear. Electrical connections, especially in harsh weather, should be inspected for corrosion or fraying. Check the suspension system for cracked bushings or misalignment. Brake lines and drums should be looked at for wear or leaks. Don’t forget to clean and test doors, latches, and locks to prevent failures during loading.
A more detailed inspection every 6 to 12 months can uncover hidden issues. Wheel bearings should be cleaned, repacked, or replaced as needed. Frame welds and bolts need to be inspected for fatigue or stress cracks. Examine axles for any signs of bending or rust, which could affect alignment. Electrical systems should be checked end-to-end, especially if the trailer is equipped with ABS. If tires show uneven wear or age, it may be time to rotate or replace them.
Even with consistent self-checks, some tasks require a trained eye. Annual inspections by a certified technician can ensure components like air brake valves, brake shoes, and ABS systems are functioning properly. Trailers with auxiliary power units or refrigeration systems also need engine maintenance and diagnostics that go beyond visual checks.
Keeping records of what’s been inspected or repaired helps you plan ahead and spot patterns. A maintenance log should include service dates, parts replaced, and any issues noticed. This not only helps with long-term care but also improves resale value and keeps you compliant with safety regulations.
