Good morning!
About the machine problem,after check the electric part will not the PLC problem and now we worry there will have two possible:
1. The hydraulic pump not work.
2. The Relief valve for the pump.
Dear does are side have engineer good at the test? We are side to check if there have oil for oil return pipe when push the Relief valve.If have oil that would be Relief valve problem if no oil there will be pump problem.dear does are side have anyone can help?