Cooling fans stopping ....and starting

[steve]

Odd problem , the cooling fans on both my HDS spindles have been stopping at the same time and some time later starting again on their own. I can get them to restart if I shut down and start up again , but they will stop some minutes later. Anyone have this experience?

[Gary Campbell]

Stephen...
Both those fans should get power from a 24VDC power supply mounted in the control box. Make sure that there are no loose wires in either the DC fan power wires going to the spindles or the line voltage power going from the contactor to the power supply. IF all are secure, the power supply may be in question.
Gary