Summer heat waves and long-haul conditions place significant stress on heavy-duty vehicles. For a truck to break down on the road is not just a loss of time; it represents thousands of dollars in costs for logistics operations. A professional checklist performed before the summer months ensures both safety and reduced operating costs.
In this guide, we detail the most common failure points for heavy-duty vehicles in summer heat and the critical components that require attention.
Overheating is one of the most common problems encountered during summer. When the engine is working under heavy load and the outside temperature exceeds 35°C, the cooling system must operate at full capacity.
Radiator Inspection: Radiator cores must be cleared of dust, insects, and mud. Clogged cores can restrict airflow, reducing cooling efficiency by up to 40%.
Antifreeze and Coolant Levels: Antifreeze doesn't just prevent freezing; it also raises the boiling point and prevents corrosion. Coolant levels and mixture ratios should be measured before summer.
Hoses and Clamps: Radiator hoses that have hardened or cracked due to heat can burst under high pressure.
In hot weather, compressors work harder, leading to increased condensation and moisture in the air tanks. Moisture can damage valve systems.
| Component | Reason for Check | Recommended Action |
| Air Dryer Filter | Prevents moisture from entering the system. | Replace with a new filter at the start of summer. |
| Air Tanks | To drain accumulated water. | Check manual drain valves daily. |
| Brake Pads | Friction increases on hot roads. | Measure thickness and replace those at the wear limit. |
Driver fatigue is one of the leading causes of accidents. An air conditioning system that doesn't work in summer heat directly affects driver performance.
Cabin Air Filters: Clogged filters reduce AC efficiency and spread bad odors in the cabin.
Refrigerant Levels: Refrigerant levels should be measured by authorized technicians to ensure the AC compressor operates healthily.
On summer days when asphalt temperatures reach 60-70 degrees Celsius, tires hitting the road with incorrect air pressure are prone to blowouts.
Low-pressure tires flex more, leading to excessive heat buildup. Tire pressure should be measured when tires are cold before every trip. Tread depth checks are also critical for safety during wet conditions (summer rains).
It's often thought that batteries only die in winter, but extreme heat accelerates the chemical reaction inside the battery, shortening its life. Corrosion on battery terminals should be cleaned, and voltage values should be checked.
In the heavy-duty vehicle industry, the quality of spare parts is the primary factor determining a vehicle's lifespan. By using cooling system parts, air dryer filters, and engine components tested to Klötze standards, you can overcome the toughest summer roads without issues.
Remember: The cost of a small hose or filter is negligible compared to the loss incurred when a truck is stranded on the road.
