This machine has a hydraulic ram, so surely the pressure relief valve on the pump must dump oil to tank before the motor overloads once it's up and running? This must be a starting problem, not operator error.
I agree with other posters that 10hp is a big motor for single phase. Starting it under full pump load is probably the cause of overamperage on the starting contacts. It will momentarily draw at least 120A to start, unloaded. Has it got a startup pressure relief/dump solenoid valve?
Last edited by Alan Belson; 07/22/09 08:12 AM.
