Doh!

Most of your compressors are either diaphragm or piston pumps with reed valves. I doubt that you can tell if the motor is running backwards. The brushes for the motor may be set from running a particular direction, but other than that it may not matter.

With the right switch,he could have a combo unit,vaccuum or compressor :)

As Tyler said, the wires are different.

"You can observe a lot of things, if you look." Yogi Berra.

If the compressor runs backwords, reverse the wires. No harm done.

Did same thing before. I compared the cuts on each wire, and matched them up.

TucsonJim wrote:

TXiceman wrote:
You do not want to suck the air out of your tires. he he

Ken

Thanks Ken. You just made me blow beer out of my nose...

X2 :B

TXiceman wrote:
You do not want to suck the air out of your tires. he he

Ken

Thanks Ken. You just made me blow beer out of my nose...

DC motors will run backwards when the wires are reversed.

You do not want to suck the air out of your tires. he he

Ken

Examine the wires carefully. There may be a mark of some sort one of them. Look for ridges or such on one wire that isn't on the other one. If you wire it backwards you will probably blow a fuse, I think that's the worst that would happen. Good luck