UP is DOWN and DOWN is UP,

and the pistons go ROUND and ROUND. 

 

This is beginning to sound like a Dr. Spock nursery rime.  ;-)
 

DO NOT ARCHIVE

Difficult to go too far wrong with only two choices?

 

Similar to hydraulics, the lever or switch is moved in the direction of the equipment being energized. Or replicates the expected outcome. As in: pushing the lever forward moves the boom down as though the lever were the boom. Pulling the lever back brings the boom up as though you were doing it with a string rather than 2,000 PSI.  

 

When mounted on a horizontal surface forward or to the right is on. In the vertical up is on.

 

Sorry left handed people.

 

Switch identified (Data plate above the switch) up is on. When in doubt, look at the landing gear handle.

 

Switch protectors are always hinged at the top. So when the cover is at rest, (closed) the switch is off. To energize that circuit, the protector is lifted up, and the switch is pushed up. 

 

When the cover is up, and the switch is energized there could be a life changing outcome for somebody. As in master arming switch.

 

End of speculation. Now shut off the computer and get back to building, and taking pictures.

 

The only exception in a normal persons life is a single light or device controlled by a pair of two way switches. So one of the two will always be point in the wrong direction in my fevered mind. It makes me mad.  In all other cases up is on (energized).

 

Lynn E. Hanover