This morning is started up T-42 lathe to continue with Fridays set-up and after having the machine on for about 45 mins it went into E-Stop mode n came up with the error 1000 OVL (OL-1,OL-4).(nuts)

In my Hardinge maintenance book it says that OL-1 is hydraulic motor overload on contactor tripped. It also says OL-4 is hydraulic heat exchanger overload on contactor tripped.

So with that being said has anyone had a similar problem or can suggest an approach to trouble shooting my problem. Any response is greatly appreciated.

Thanks, imac.