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  #1  
Old 09-16-2017, 02:21 PM
ddenton1250 ddenton1250 is offline
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Location: Pennsylvania
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Question 1250 Not Charging
My 1250 is not charging.

New voltage regulator.

Regulator Plug to stator - not running:

AC Top to AC bottom 0 to 0.4 ohms
AC Top to gnd OL
AC Bottom to gnd OL

When running WOT:

AC Top to AC Bottom - 37 VAC
AC Top to gnd - 37 VAC
AC Bottom to gnd 0.0
DC to gnd 0.0 VDC

Ignition switch terminal A to Regulator plug DC 0 ohms

I cleaned a rusty connection at the ignition switch Terminal B. No joy.

Does anyone have any ideas?
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Old 09-16-2017, 02:59 PM
dale c. dale c. is offline
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you need 12v to center terminal on regulator from the ignition switch if you don't have any then you might need a new ign. switch
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Old 09-16-2017, 03:32 PM
R Bedell R Bedell is offline
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Here is the check out procedure......... http://www.onlycubcadets.net/forum/showthread.php?t=368
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CC Models: 100, 105, 1450, 782, (2) 784, & 2072

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Old 09-16-2017, 03:34 PM
ddenton1250 ddenton1250 is offline
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Quote:
Originally Posted by dale c. View Post
you need 12v to center terminal on regulator from the ignition switch if you don't have any then you might need a new ign. switch
Thank you for responding.

I have no volts at the DC terminal of the voltage regulator (VR) running or not running, key on or key off.

I checked the wire from the ignition switch to the VR and it is good.

What are the terminal combinations to test the ignition switch for continuity?
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Old 09-16-2017, 03:37 PM
R Bedell R Bedell is offline
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BTW....I should mention that the V/R has to have a "good" ground connection to the battery, for it to work properly.
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CC Models: 100, 105, 1450, 782, (2) 784, & 2072

Buy: Made in the USA
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Old 09-16-2017, 03:42 PM
ddenton1250 ddenton1250 is offline
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I have the ignition switch out.

I checked continuity between terminals A and B.

Key off no continuity.

Key on - Terminal B is loose. If I wiggle it with the ohmmeter connected I have intermittent continuity.
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Old 09-16-2017, 03:44 PM
ddenton1250 ddenton1250 is offline
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Quote:
Originally Posted by R Bedell View Post
BTW....I should mention that the V/R has to have a "good" ground connection to the battery, for it to work properly.
When you say good ground connection, do you mean between the body of the VR to the engine shroud? Or is there a ground wire somewhere?
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Old 09-16-2017, 03:55 PM
ddenton1250 ddenton1250 is offline
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Originally Posted by R Bedell View Post
Here is the check out procedure......... http://www.onlycubcadets.net/forum/showthread.php?t=368
I have zero volts at the DC terminal of the VR while running.

I have 37 VAC at the AC terminals

I have less that 1 ohm at the stator wires.
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Old 09-16-2017, 04:56 PM
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ironman ironman is offline
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With the tractor not running, if you pull the connector off of the v/r and turn the key just to the on position you should measure 12 volts on the center lug of the connector. That would be voltage straight from the battery. If no voltage you could have a faulty key switch, bad connection on the key switch, an open ammeter, a bad connection on the ammeter, or a bad connection in the plug that connects to the pig tail of the V/R connector. With this test you can jiggle the key and all the connections to see where your intermittancy is. Don't know if that is a word but hopefully you get the idea. You could use a meter but a test light would be easier to spot the trouble with.
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Old 09-16-2017, 05:05 PM
R Bedell R Bedell is offline
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Quote:
When you say good ground connection, do you mean between the body of the VR to the engine shroud? Or is there a ground wire somewhere?
That would be from V/R case to Battery ( - ) negative terminal. It should be zero ohms.

The Wiring Diagram for the 1250 is in the Technical Library Section, on page 5.
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