Dump Truck Common Issue Detection Guide

Dump trucks, an essential engineering transportation vehicle, are widely used in construction, mining, transportation, and other sectors, serving as a valuable asset for the development of engineering projects. But what should we do when encountering issues during the operation of these vehicles? Here's a guide on how to diagnose and detect common problems with dump trucks.

I. Initial Problem Assessment

1. Observing Fault Indicators
First, observe if any fault indicators on the vehicle's dashboard are illuminated, as they can provide initial clues to the problem.

2. Analyzing Fault Phenomena
Based on the specific circumstances of the fault, such as the manner of stalling (sudden or gradual), changes in sound (unusual noises), and operational feedback (e.g., lifting difficulties, brake failure), make an initial assessment of the issue.

3. Determining Fault Types
Faults can be categorized into electrical, fuel system, and driving system issues. Electrical faults can further be divided into high-voltage and low-voltage circuit faults.

II. Specific Detection and Diagnosis of Issues

1. Electrical Fault Detection
◆ Inspect wires for breaks, shorts, and loose connections.
◆ Smell for the burning smell of wires in the engine compartment.
◆Use professional instruments for circuit testing, such as multimeters and oscilloscopes.

2. Fuel System Fault Detection
◆ Check if the fuel tank has sufficient fuel.
◆ Inspect fuel lines for leaks.
◆ Use the "spark test" method to determine if the fault lies in the electrical or fuel system.

3. Driving System Fault Detection
◆ Listen for any abnormal sounds, such as unusual noises from the steering, braking, or transmission parts.
◆ Inspect the brake system for leaks and brake pad wear.
◆ Check the tire wear and tire pressure.

III. Detection and Handling of Specific Issues (Taking the Dump Truck Lifting System as an Example)

1. Detection of Lifting System Faults
◆ Check if the oil level in the tank is sufficient.
◆ Inspect the tank filter or pipeline for severe clogging.
◆ Inspect the oil pump for malfunctions, such as insufficient oil supply or damage.
◆ Check if the lifting switch, distribution valve, and return valve are functioning properly.

2. Handling of Lifting System Faults
◆ If the oil level is insufficient, add fuel according to specifications.
◆ If the filter or pipeline is clogged, clean or replace it.
◆ If the oil pump is faulty, repair or replace it.
◆ If the switch or valves are faulty, repair or replace the relevant components.

IV. Precautions

1. Safety First: Ensure operational safety during detection and maintenance to prevent accidents.

2. Professional Operation: For complex or uncertain issues, seek the assistance of professional technicians.

3. Regular Maintenance: Regular maintenance and inspections of the vehicle can help detect and resolve issues promptly, extending the vehicle's service life.