I have just got a second hand cnc which turns out to be a CC-1530 made by CHENcan Machine the only issue I am having with it is a warning keeps coming up in Nc Studio saying "The following ports' signal make prompt: X09. .Lube Pump Check Port" The only lube I can find on the machine is the oiler for the linear rails and this has as far as I can see no sensor in it. When I look in the machine at the board it does have a light on the 09 port but I honestly don't know what I am looking for in there. I can override the port in nc studio but that requires restarting the software so I am a little worried that if I run a complicated sheet then its going to cut out with the port error again and I won't be able to zero the machine to the same place again.

Any help here in locating where this sensor is would be greatly appreciated