Johnford SL-800B False overtravel

Hi all,
this machine has began to have a problem with the hydraulics turning off during cycle. The only thing I see on the panel is the over travel indicator is lit while both turrets are actually in cut. No alarms are present. At times we can dial the turrets around a bit after cycling power and get it to machine 3 or 4 parts before the same thing happens again. At one time we did get a motor over load alarm.
Any help would be appreciated.

Thanks, Bob