Our semi-trailer factory has put together some practical post-maintenance methods. Taking good care of your semi-trailer is key to extending its service life and cutting down on engine issues. Neglecting maintenance often leads to frequent breakdowns and a shorter working life. Here’s a quick run-through of what we recommend:


●Clean and lubricate all parts according to the lubrication chart.

●Check and adjust the clearance between brake pads and drums on all wheels.

●Inspect brake and hydraulic system pipelines for leaks, and make sure connecting hoses are in good condition.

●Look for loose, damaged, or poorly insulated electrical wiring.

●Examine all components of the fifth wheel coupling and steering gear to ensure they’re intact.

●Check if the steering rod connections are loose and if this affects tire alignment; adjust the steering rod system if needed.

●Verify that all suspension parts are in good shape.

●Check tires for excessive or abnormal wear, proper pressure, and correct valve positioning.

●Clean all parts and check for paint chipping, rust, or dirt.

●Inspect power unit components, clean the oil tank and valves, check oil quality, and replace oil when necessary.


As one of China’s leading semi-trailer manufacturers, KAIRUI IMPORT & EXPORT (SHANDONG) CO., LTD is committed to providing high-quality semi-trailers, including truck trailers and container trailers. Our factory also stocks various trailer parts. Customer satisfaction is our constant goal-feel free to reach out for more info.

1.When using rivers or ponds as water sources, ensure the end of the suction pipe is fully submerged. To avoid sucking in stones, heavy sediment, or floating debris, a filter is usually fitted to the pipe end—never remove this filter while drawing water. If the water source is shallow, dig deeper in the suction area to keep out debris and air. Different sprinkler pumps have different water requirements: clean-water pumps need impurity-free water, while muddy-water pumps can handle some sediment but no stones.

2.Before each use, centrifugal water pumps need to be primed with water, and the inlet must be closed afterward. Self-priming pumps only need priming the first time they’re used.

3.The inlet pipe system must maintain a vacuum to draw water into the tank. Ensure the system is tightly sealed: hoses should be undamaged, and hard pipes free of cracks—any leaks will let in air and prevent water from being drawn.

4.Always shift the power take-off when the vehicle is stationary, whether before drawing water or sprinkling.

5.Drain all water from the pump and pipes before winter to prevent freezing damage.

6.Front sprinklers are low to the ground with high pressure, ideal for road flushing; rear sprinklers (usually one on each side) are higher and cover more area, suitable for road maintenance. Close front sprinklers when using rear ones. Adjustable nozzles let you control sprinkling width—the wider the coverage, the less overlap, and the more even the distribution.

7.Regularly lubricate moving parts and tighten connections during use to keep the truck running smoothly.

8.Sprinklers have a drain pipe at the tank’s lowest point. Periodically open this to flush out accumulated debris until the water runs clear.

Dump trucks are vital in transportation and construction, thanks to their unique unloading mechanism.

1.Structure and Operation

A dump truck consists of a chassis, frame, cargo box, engine, and hydraulic system. It unloads by tilting the cargo box via hydraulic power, making it highly efficient for hauling bulk materials.

2.Applications

●Cargo transport: Widely used in logistics, construction, and mining for bulk goods.

●Construction: Essential for earthmoving, road building, and bridge construction.

●Waste management: Transports garbage to landfills or incineration plants.

3.Operational Guidelines

●Pre-operation: Inspect all parts and assess the work site.

●Driving: Maintain steady speed and stay alert to surroundings.

●Unloading: Tilt the box gradually, monitor cargo flow, and prioritize safety.

●Maintenance: Regularly check hydraulics, brakes, and tires to ensure reliability.