What is this tool?

[Eugene G.]

Can someone tell me what this does. It has a date of 1972 stamped on the back and it was made by the C.E. Neihoff Co.

[Mike G.]

Re: What is this tool?

Believe that's an armature tester, known as a "growler".

[Eugene G.]

Re: What is this tool?

Thanks Mike. I did not have a clue.

[Jim D.]

Re: What is this tool?

Believe that's an armature tester, known as a "growler".

That's exactly what it is.

[Dan D.]

Re: What is this tool?

Back in the day I would have loved to have owned one of these things. Used to go through DC armatures like candy. -Dan-

[Dick W.]

Re: What is this tool?

Back in the day I would have loved to have owned one of these things. Used to go through DC armatures like candy. -Dan-

Need a hacksaw blade to go with it

[Wayne W.]

Re: What is this tool?

Yea, and I got both of them. Anybody need one.

[Dick W.]

Re: What is this tool?

Yea, and I got both of them. Anybody need one.

Whadda ya take, bid $5.00. Need a few more tools that I will never use again. New a late model Sun distributor?

[Robert K.]

Re: What is this tool?

Dick,

...sent you a PM!!

Bob

[Zachary K.]

Re: What is this tool?

It looks to me and I believe its called a growler, (maybe a nickname) its used for checking / testing armautres in starters and generators when back in the good ole days those units were rebuilt and not replaced with a rebuilt one as everything is done today.

[John S.]

Re: What is this tool?

It is a growler. It is also used for testing cast aluminum and copper rotors used in AC induction motors for both automotive and aerospace industry. Have one at our shop and it is used on a regular basis. Most often when we are having performance problems in our motors.
Faulty armatures and rotors will cause a growling sound and vibration in the part.

[Eugene G.]

Re: What is this tool?

Thank you John. Very interesting.

[Richard M.]

Re: What is this tool?

My Brother-in-law owned a service station years ago and had this one lying around. He was going to toss it out so I saved it from the junk pile. A short time later I had a generator problem and used it to test the armature. It growled like crazy so it proved the armature was bad. I used it to test several armatures over the years. My friends can't believe I still have it.