Summer in the Ohio Valley brings blistering pavement temperatures and high humidity, which can be brutal on commercial trailers. Extreme heat is the number one cause of tire blowouts and puts massive strain on cooling systems and seals. Preparing your fleet for the summer heat prevents roadside emergencies and keeps freight moving smoothly during the busy season.
- Check tire pressure when tires are cold (heat expands air and increases pressure naturally)
- Inspect for dry rot, cracking, or bubbling on the sidewalls
- Monitor wheel hub oil levels, as high temperatures can cause seals to fail and leak
- Inspect all rubber gladhand seals, which dry out and crack faster in the summer sun
- Check air hoses for flexibility and signs of UV degradation
- Ensure brake shoes and drums are in good condition to prevent overheating on steep grades
- Clean debris and bugs from the reefer condenser coils to ensure maximum airflow
- Verify engine coolant and oil levels in the refrigeration unit to prevent overheating
- Inspect door seals for gaps where cool air can escape and hot, humid air can enter
- Check all grease fittings on the landing gear and suspension (high heat thins out grease)
- Lubricate swing door hinges and lock rods to prevent binding
- Ensure the fifth wheel plate is properly greased to prevent friction buildup
- Inspect the perimeter caulking and sealants along the roof (heat causes metal expansion and contraction, which can break seals)
- Check translucent roofs for severe UV damage or brittleness
- Verify that interior vents (if applicable) are clear for proper airflow in dry vans
Benefits of Summer Prep
Proactive summer maintenance drastically reduces the risk of expensive tire blowouts, prevents reefer unit failures, and ensures that dry rot doesn’t turn into a DOT violation.
Conclusion
Getting ahead of the heat wave with a dedicated summer inspection routine is the smartest way to protect your equipment and your drivers from the harsh summer elements in Louisville.