Complete Rainy Season Maintenance Guide for Concrete Mixer Trucks

1. Take Good Care of the Windshield Wipers

During the rainy season, windshield wipers are used more frequently and play an important role in driving safety.

Operators should regularly check the wiper system by:

• Testing the wiper at different speed settings.

• Checking whether the wiper operates smoothly without abnormal vibration or noise.

• Inspecting whether the wiping speed remains stable.

• Checking if the wiper arm moves evenly and whether there are any areas left unwiped.

A worn or damaged wiper blade should be replaced immediately to ensure clear visibility in rainy weather.

2. Check Tires and Prevent Vehicle Deviation

The tires of a concrete mixer truck are one of the hardest-working components. During the rainy season, wet roads increase the risk of slipping, so tire maintenance is especially important.

Regular inspections should include:

• Checking tire pressure and tread wear.

• Inspecting whether the vehicle has steering deviation or uneven tire wear.

• Performing wheel alignment if the truck pulls to one side.

Proper tire maintenance improves driving stability and reduces safety risks.

3. Keep Engine Oil Clean and Suitable

Engine oil plays a vital role in protecting the engine and ensuring smooth operation.

Maintenance recommendations:

• Regularly check oil quality and oil level.

• Replace old or contaminated engine oil in time.

• Use lubricants suitable for the operating environment and season.

Clean and proper engine oil can reduce engine wear and improve fuel efficiency.

4. Inspect the Brake Fluid System

Most concrete mixer trucks use a dual-circuit hydraulic braking system with vacuum assistance. Brake fluid is a key component for transferring braking force.

Brake fluid has strong water absorption properties. If moisture enters the brake system, high temperatures generated during braking can cause the water to turn into vapor. Since gas can be compressed, this may reduce braking efficiency or even lead to brake failure.

Before and during the rainy season:

• Check the brake fluid level.

• Inspect brake fluid quality.

• Replace brake fluid if excessive moisture or contamination is detected.

A reliable braking system is essential for safe operation.

5. Protect and Maintain the Truck Body

During seasonal changes, dust, sand, and moisture can accumulate on the vehicle body and engine compartment.

Recommended maintenance:

• Clean dust and debris around the engine compartment regularly.

• Be careful when wiping the vehicle surface to avoid scratches caused by small sand particles.

• Apply protective coatings or paint protection treatments when necessary.

Proper body care helps prevent corrosion and keeps the mixer truck in good condition.

6. Maintain the “Heart” of the Truck — The Engine

The engine is the core power source of a concrete mixer truck. Long-term operation may cause carbon deposits to build up inside the engine.

Excessive carbon deposits can:

• Reduce engine performance.

• Increase fuel consumption.

• Damage rubber components.

• Affect normal vehicle operation.

Regular engine inspection and cleaning can improve reliability and extend engine service life.

7. Keep the Cab Clean and Prevent Bacteria Growth

During the rainy season, humidity increases, creating favorable conditions for bacteria and mold growth. Keeping the driver’s cab clean and dry is important for operator health and comfort.

Pay special attention to cleaning:

• Seats and seat covers.

• Floor mats.

• Steering wheel covers.

• Air vents.

• Other hidden areas where dirt and bacteria may accumulate.

A clean and dry cab provides a healthier working environment for drivers.