What is the error code M7042-The jacking cylinder in the work area rises abnormally (X44)? 

What is the meaning of "check whether the cylinder is stuck when rising" as it relates to the machine code of KM-ASSYM
The M7042 error occurs when the jacking cylinder in the work area rises abnormally. To resolve the error, check if the cylinder is stuck when it rises. If it is, try to release the cyl