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#11
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Hi. Thanks for all your advice.
I got the tach on Friday, but have to work all weekend. I'll run the test asap and report back. |
#12
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If we are changing AC voltage from the stator to DC voltage at the VR, there must be a set of diodes. Is it possible that one of the diodes is leaking AC voltage? AC voltage on a DC circuit can cause some weird symptoms, and current (amps) fluctuations. Just a thought. I know that the VR-rectifier has been replaced as stated in the first post. New doesn't mean good. Had that lesson many years ago, and again last fall with the coil on my 782. Test the DC output side of the VR for AC volts.
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149, 2072, Original, 1772, 1782, #1 cart, Parker 48" sweeper, |
#13
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I spent another day troubleshooting and looking for answers but I’m not sure I made much progress. I was able to verify that WOT is 3580 RMP and the Stator is putting out 41.7 ACV to the regulator rectifier at WOT, which I know is high. Here are the stats for the stator, regulator, battery, and PTO:
Engine off
I could also use some help with DieselDoctors recommendation to test the DC output side of the VR for AC volts. How is that done? Thanks! |
#14
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Your VR is putting out a pretty reasonable voltage. 14.8 is not over the top. I would be looking for a short. Over voltage is one thing. Voltage does not blow fuses, amps blow fuses, a short will cause higher amperage draw.
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Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641 |
#15
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Update: I have tested every wire and component on this tractor and can't find any shorts. Every test I find online checks out. Battery, ignition, wires, regulator, hour meter, switches, etc. And through all the tests with the engine running the fuse has held up so I can't figure out why it was blowing while I'm mowing.
As a last resort I'm going to install a resistor in the PTO lead to drop the voltage and see if I have any problems after a few mows. Does anyone know how to determine what type of resistor is needed to drop the voltage by 0.5 volts on this type of circuit? Everything I find requires an electrical engineering degree to figure out :0) Thank you |
#16
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I remember back in the 90's the 2000 series were having issues with the PTO clutches that caused arching through crankshaft destroying the engine bearing. Kohler and Cub Cadet went round and round as to who was to blame for this problem. I don't remember how this was resolved. Maybe an old service bulletin from that era may shed some light on the issue. I sold a great deal of Simplicitys because of unhappy Cub Cadet customers.
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Queen Of The Quietlines! |
#17
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Quote:
To the OP, if you insist on adding a voltage regulator, you are on your own. That isn't the issue. Obviously, you aren't listening. You have a short, or a component drawing too many amps. If you don't understand the difference between amps and volts, look it up. It doesn't matter if you send 8V or 16V to the PTO it still needs so many amps. You can put in a resistor and drop .5V, it will still draw "X" amps. It isn't going to fix the problem. That's a silly idea. Keep looking, or take it to a shop. Besides, if you drop the voltage too much, the PTO won't draw the clutch in tight and you will burn it up..... better just leave the resistor out of it. |
#18
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Quote:
Have you checked for short with a test light in reverse??? power at chassis?
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Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641 |
#19
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Does the 25a fuse blow only when the pto is engaged?
Quote:
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61 and 63 Originals 123 (2) 782D 106, 147, 122 102 parts It's only original ONCE!
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#20
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To measure if there is ac where dc should be just place your meter in the ac setting and measure between the positive wire and ground. If all is well you should read very little ac voltage.
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61 and 63 Originals 123 (2) 782D 106, 147, 122 102 parts It's only original ONCE!
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