I went ahead & ran with @Photomancer & @John_Marlow ideas. I bought some red safety cones to place on the machines when they are out of service. I also bought some “Out of Service” tags to accompany the cones when in use.
You can see in this screen grab of the camera the cone on the HAAS.
The cones & tags are mounted on the end of the grey cabinet.
Changed the switch on the Colchester, the coolant pump is currently down BTW.
Oh myself & @BobKarnaugh fixed the vacuum yesterday afternoon
The motor for it was about a .5 meg ohm to ground… not ideal but I think it will be ok.