Truck quality appraisal

A truck is a vehicle mainly used for transporting goods and is usually designed with a large load capacity and cargo space. They can be small pickup trucks, medium-sized vans, or large tractor-trailers used to tow trailers or semi-trailers. Trucks can be divided into multiple types based on their use and load capacity.
Truck quality appraisal is a systematic assessment and testing of the quality of the truck as a whole or its components to ensure that the vehicle meets safety, performance and regulatory requirements.
In truck quality appraisal cases, Zhongke Testing can provide truck quality appraisal services.

is divided according to load: Currently commonly used, it is generally divided into four types: micro truck, light truck, medium truck and heavy truck.
is divided according to the carriage structure: warehouse gate type, fence type, (low) flatbed type, dump truck, box type, container truck, tank type and center axle.
is divided according to the cab: it can be divided into four categories: long head, short head, flat head and offset.

GB/T 34585-2017 Pure electric trucks Technical conditions
GB/T 40712-2021 General technical conditions for multi-purpose trucks
GB/T 24938-2010 Low-speed truck dump system Safety technical requirements
GB/T 23921-2009 Three-wheeled vehicles and low-speed trucks Half shaft
GB/T 24941-2010 Low-speed freight train safety frame Requirements and test methods
GB/T 4549.11-2004 Railway vehicle vocabulary Part 11: Special freight train ancillary equipment
TB/T 2231.2-2018 Railway vehicle braking system Part 2: Wagon
JT/T 1178.1-2018 Safety Technical Conditions for Operating Trucks Part 1: Trucks
JB/T 7736-2011 Low-speed Trucks Reliability Assessment and Assessment Method

quality product dispute situation:
due to damage to the gearbox, the contractor sent the "heavy-duty dump truck" involved in the case to the contractor for gearbox replacement and maintenance. The repairman later called the repairman to inform him that one shaft of the second-hand gearbox he was replacing was too long, but it could be replaced after a little polishing.
The contractor agrees that this method can be used for repairs without affecting the operation of the vehicle. After the repair was completed, the repairman went to pick up the car from the repairman, but found that it was difficult to start the vehicle, and there was a lot of exhaust gas after starting. After a test run of 10km, it was found that the engine oil pressure was insufficient. Later, the repairman went to the repairman's office to change the engine oil, but when it was started again, it was found that the water temperature was very high.
's repairman later found another repair shop to inspect the vehicle and was told that the vehicle's engine had a cylinder pull. The repairman believed that it was the repairman's fault that caused the damage to the vehicle's engine. Therefore, Tuo Xiang filed an application for quality appraisal with the court.
quality analysis results:
A The court entrusted our company to identify whether the "heavy-duty dump truck" involved in the case was damaged because the repair party replaced the second-hand gearbox.
The quality analysis expert team conducted an on-site inspection of the "heavy-duty dump truck" involved in the case. Through observation and analysis, the following suggestions and conclusions were made:
1. The replacement of a second-hand gearbox in the "heavy-duty dump truck" involved in the case caused the engine crankshaft to move forward abnormally, resulting in The scratches and wear of the engine crankshaft and its related parts were the direct cause of the engine damage after the vehicle involved in the case was driven;
2 and the contractor's failure to inspect, repair and factory inspect the "heavy-duty dump truck" involved in the case in accordance with the requirements of the regulations were the main cause of the engine damage after the vehicle involved in the case was driven.