CVT Quality Inspection
Quality inspection as the process documents describe it: bench testing, the CVT pressure test, and full-load testing.
Design diagram only, not a product photograph.
Three testing layers
The process documents describe three testing layers. The first is component bench testing in step 6: solenoids, sensors and valve-body assemblies are tested on the bench for oil flow, pressure stability, switching response and sealing, and CVT units additionally receive the pulley-cylinder pressure test for internal leakage and pressure loss. The second is the rejection layer in step 2, where worn, deformed, fatigued or out-of-tolerance core parts, including pulleys, are rejected rather than reused. The third is the finished-unit layer in step 9, where the documents say every finished unit receives full-load dynamometer testing, covering main oil pressure, clutch engagement, torque output, shift smoothness, working temperature, hydraulic condition, abnormal noise and sealing, with test data and a quality file kept for each unit.
How to read a test claim
A test claim is only useful if it names the layer. A bench-test result is not a finished-unit result, and a finished-unit result for one unit is not a result for a whole order. A buyer who receives a test report should ask which step it belongs to, which part or unit it covers, and whether a quality file exists for the units in that order. The company materials also mention intelligent testing equipment for initial inspection and a vehicle test, in the quality summary, and a buyer can ask which of those applies to a CVT order. This page does not convert any of those descriptions into a pass mark, because no pass mark is given in the materials.