When we use a refrigerated truck refrigeration unit, we need to check it before use. So how should we check the refrigerated container refrigeration unit? The refrigeration unit manufacturer will introduce it to you.

Check for leaks in the brake system of the refrigerated truck: Check the technical condition of the brake system and eliminate any looseness, oil leakage, or air leakage in the connecting parts.

Inspection of refrigerated trucks while in motion: Start the engine, release the handbrake, and drive the car at a speed of 20-30 km/h. Step on the brake pedal on a dry and flat road surface, and the refrigerated truck should quickly slow down and stop without any deviation.

After braking, when releasing the brake pedal and continuing to drive, the refrigerated truck should be able to start and drive smoothly, and when the steering wheel is not moved during driving, it should maintain straight line driving without deviation. When the car has traveled a certain distance and stops to check the temperature of the brake drum, brake disc box, and brake pads, the temperature should be normal and not hot to the touch.

Inspection of refrigerated truck in parking state: After starting the engine and running it for a few minutes, if the hydraulic brake system responds normally when the brake pedal is pressed, then the pipeline system is normal.

Check the brake fluid level of the refrigerated truck: The brake fluid storage level should be between the upper and lower markings of the reservoir. If there is a lack of brake fluid, the same type and brand of brake fluid should be added, and other types of brake fluid or alcohol substitutes should not be added.

When you want to check the foot feel of the brake pedal of the refrigerated truck hydraulic brake system: When stepping on the brake pedal, you should first be able to feel the small free stroke of the pedal, which should be between 6-20mm.

Continue to press the pedal, there should be significant resistance until it can no longer be pressed. If the pedal feels soft and there is no obvious resistance when pressed, it indicates that the braking system has a malfunction and should be repaired.

If the foot pedal is very low when pressed, but the second foot returns to normal, but there is a slight elasticity when the pedal is pressed hard, it indicates that there is air in the brake pipeline, and the air in the brake hydraulic pipeline should be eliminated.