overload relay

[buck33k]

Below is a photo of an electrical enclosure on a lathe. Sorry about the quality of the picture.
Below the contactors is a module with a dial labled rc amps 4, 5, 6. I assume this is an overload relay. Both motor and contactors connect to it.
Im not sure how the numbers actually relate to overload. For example, are they amps above a certain threshold?
Hope the photo posts OK.

http://i158.photobucket.com/albums/t108/buck33k/lathe1.jpg

 

[Buck Parrish]

I can not see the picture.






Okay now I can

 

[buck33k]

Not the greatest picture. It was emailed to me.

 

[jim dungar]

Yes, the numbers on the dial are AMP settings. They are normally set equal to the FLA on the motor.

 

[mxslick]

I would be more concerned over all the metal shavings in that enclosure.