I have a 1954 cat 212 grader 9t4192 I've restored.  The generator has been gone thru with all new parts, Armature was tested new fields, brush plate, brushes and regulator. I can't get anything out of it.  I've tried polarizing it with no luck.  Any ideas?? Also looking for worm gears for the steering box.  

Is it an American Bosch (type generator
or a Delco Remy (type A)?
They use a different method of polarizing.

Don't know why I'm getting that image, should read (type
Type A or B
Doing it wrong can cause damage
 

It's got a Delco tag on it but can't make out all the numbers on it for ID

Do a motor test on the generator.
Remove generator and power armature terminal and ground the case. Should run as a motor.

I’ll try that tomorrow. Thanks for the help!!

If it runs as a motor the armature, brushes and commutator are probably ok.
While running as motor ground the field and if the motor slows down some the fields should also be ok.

Thanks! I do it tomorrow and let you know what I come up with.

Old wrote:

If it runs as a motor the armature, brushes and commutator are probably ok.
While running as motor ground the field and if the motor slows down some the fields should also be ok.
 

Old Magnet again you come through with flying colors ...and explained not only where but why and how to do the tests and when.
That is the exact question I was going to ask next.. THANKX  I blazed through the service manual a few days ago and saw that a bad connection in the charging system anywhere can cause the generator not to be able to reach its max potential (paraphrased) . It also suggested cleaning the connections after setting for a long time.That is where I was headed next but now I have more ammo to pinpoint and attack the charging issue.
That was worth the $50 I paid for the ACMOC subscription just in that one topic... again thanks.
 

I tested the generator today. It would run like a motor if you would help it get started. Ground the field terminal and it will slow down. Does that sound rite??

That's what it should do. Problem is not with the generator.
Remount the generator and with tractor running, temporarily ground the generators field post to the case. If it charges then (make sure you have a working ammeter) the voltage regular may be bad or a wire is missing from the field post to the field terminal in the voltage regulator or the VR is not well grounded.

If it still doesn't charge, leave the field grounded and jump a wire across the VR's Bat and Arm terminals. (this bypasses the cutout relay). If it now charges the VR's cutout relay isn't working correctly. (maybe points burned/carboned/resistive.

With those two steps you basically by pass the VR functions so if it still won't charge you're left with a bad battery or wiring issue other than the generator itself which you have just tested.