Not Ranked
If you have a way to connect power and ground to the gage and sending unit, yes you can bench test them. I am not familiar with the Smiths sending unit but would guess that it uses the typical float and rheostat arrangement unless you have a new electronic one. If that is the case, just hook power and ground to the units and then move the rheostat and watch the gage. When all of the resistance is out the gage should read full.
Ron
|