Daily Usage Guide for Mixer Truck

1. Pre-Operation Inspection

1.1 Vehicle Exterior & Core Components

Check mixer drum for cracks/wear; ensure hoppers are unobstructed and fasteners tight.

Inspect hydraulic system for leaks; verify oil level and cleanliness.

Check transmission components for loose connections/wear; ensure normal oil level.

Inspect tires (pressure, wear, damage) and tightness of wheel nuts.Check brake fluid, pad/disc wear; test handbrake and service brake.

1.2 Fluid Levels & Auxiliary Systems

Check and top up engine oil, coolant, and windshield washer fluid if low.Ensure sufficient fuel; check for fuel leaks.Test electrical system (battery, lights, horn, wipers) for normal operation.Check mixer drum water supply: full tank, unobstructed pipes/nozzles, no leaks.

3. Troubleshooting Steps

3.1 Hydraulic System Malfunctions

Symptom: Mixer drum fails to rotate. Cause: Insufficient hydraulic oil, clogged oil filter, or faulty hydraulic pump. Solution: Check oil level and top up if needed; replace clogged filter; inspect pump and repair/replace if faulty.Symptom: Hydraulic oil leakage. Cause: Damaged hoses or loose joints. Solution: Stop operation; replace damaged hoses; tighten loose joints and check for further leaks.

3.2 Mixer Drum Malfunctions

Symptom: Drum rotation is uneven or noisy. Cause: Foreign objects stuck in the drum or worn transmission components. Solution: Stop rotation; remove foreign objects; inspect transmission parts and repair/replace if worn.

Symptom: Concrete segregation during transportation. Cause: Drum rotation speed too low or inconsistent. Solution: Adjust rotation speed to 2-6 rpm; check if the drum is blocked and clear if necessary.

3.3 Braking System Malfunctions

Symptom: Weak braking force. Cause: Insufficient brake fluid or worn brake pads. Solution: Top up brake fluid; replace worn brake pads and test braking performance.

Symptom: Brake drag. Cause: Stuck brake caliper or contaminated brake discs. Solution: Inspect caliper and free if stuck; clean brake discs and test operation.

2. Operation Procedures

2.1 Start-Up & Warm-Up

Before starting engine: engage parking brake, set gear to neutral, and put all control levers (including mixer drum) in "off/neutral" position.Start the engine and let it idle for 3-5 minutes to warm up; check for abnormal noises/vibrations and fluid leaks.Test the mixer drum's rotation (forward/reverse) to ensure smooth operation without jamming.

2.2 Driving & Mixing Operation

Maintain a low speed (≤40km/h) when transporting concrete; keep the mixer drum rotating at a slow speed (2-6 rpm) to prevent material segregation.Avoid sudden acceleration, braking, or sharp turns to ensure driving stability and prevent concrete spillage.During mixing, monitor the hydraulic system pressure; if it exceeds the normal range, stop operation immediately for inspection.

2.3 Discharging Operation

Park the vehicle on a flat and stable ground, engage the parking brake, and place wheel chocks if necessary.Adjust the discharge hopper to the correct angle; start the mixer drum in reverse rotation to discharge evenly.After discharging, use clean water to flush the drum, hoppers, and discharge port to prevent concrete residue buildup.

2.1 Start-Up & Warm-Up

Before starting engine: engage parking brake, set gear to neutral, and put all control levers (including mixer drum) in "off/neutral" position.Start the engine and let it idle for 3-5 minutes to warm up; check for abnormal noises/vibrations and fluid leaks.Test the mixer drum's rotation (forward/reverse) to ensure smooth operation without jamming.