Must Check Items Before And After Driving On Muddy Construction Sites

The construction site has muddy roads with many potholes, deep water accumulation, and poor road adhesion, making it the most prone to truck failure. Frequent sinking, mud and water immersion, chassis dragging, and sand and gravel adhesion can easily cause hidden faults such as brake failure, pipeline blockage, chassis corrosion, and circuit short circuits. Many fleets only focus on the maintenance of long-distance vehicles and neglect the inspection of vehicles on short distance muddy construction sites, resulting in small hidden dangers accumulating into major failures and frequent shutdowns for maintenance. Mastering the exclusive pre - and post inspection items for muddy construction sites can effectively improve vehicle stability and significantly reduce the failure rate of construction site operations.
Focus on checking the chassis and walking system before driving. The friction on muddy roads is unstable, and the tires bear huge impact loads. Before driving, it is necessary to check the tire pressure and tread pattern of the four tires, clean the tire crevices and gravel, and check whether there are bulges or scratches on the tire sidewall. The sinking of vehicles on construction sites can easily damage the suspension structure. It is necessary to check whether the steel plate springs, rubber sleeves, and shock absorbers are loose or leaking oil to ensure the stability of the chassis support. At the same time, check the temperature of the wheel hub and the condition of the bearings to avoid potential safety hazards caused by muddy driving, bumps, and shaking.
Braking and pneumatic inspection are of utmost importance in construction site conditions. Muddy water can easily splash into the brake drum, brake cylinder, and air circuit joints, causing brake slippage, slow response, and brake failure due to water ingress. Before driving, it is necessary to test the brake sensitivity, check whether the brake returns smoothly, and eliminate dragging brake problems. At the same time, drain the accumulated water in the air storage cylinder, check whether the gas pipeline joints are loose and aging, prevent mud and water from entering the gas pipeline and causing valve body jamming and brake failure, and ensure safe and reliable braking on muddy roads.
The sealing inspection of circuits and wiring harnesses must not be overlooked. There is a large amount of mud and water splashing on the construction site, and the chassis wiring harness and plugs are prone to water and moisture, causing short circuits, lighting failures, and sensor errors. Before driving, check whether the chassis harness sheath is complete, whether the plug is loose, clean the surface dirt of the plug, and ensure good sealing. Simultaneously test the working status of all vehicle lights and wipers to ensure clear visibility and normal operation of electrical equipment in rainy and muddy environments.
Clean and inspect the vehicle after receiving it to prevent long-term corrosion damage. After the muddy operation is completed, a large amount of wet mud will remain in the chassis, frame, and suspension gaps, which can easily corrode the beams, screws, and pipelines if attached for a long time. After receiving the car, it is necessary to promptly wash the sediment on the chassis to keep the frame dry and transparent. Check the chassis guard plate and pipelines for any dragging, scraping, deformation, or wear, and promptly repair and protect the outer skin if any damage is found. At the same time, check again whether the brake system is stuck with mud, clean up the mud and sand attached to the brake drum, and avoid abnormal braking the next day.
The hidden dangers of using vehicles in muddy construction sites are strong, and most of the faults are caused by inadequate inspection. Adhere to comprehensive pre inspection before departure and timely cleaning and troubleshooting after receiving the vehicle, forming a standardized inspection process, which can effectively avoid common faults in braking, chassis, circuits, and air circuits, reduce maintenance costs and downtime losses, and ensure stable, efficient, and safe operation of vehicles in harsh construction conditions.