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Old 06-19-2022, 06:52 AM
Rjulio Rjulio is offline
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Join Date: Jun 2022
Location: Ohio
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Hello,

Thanks for letting me in.

I have 2 of these model mowers my newest one with only 19 hours on it had blown the fuse while sitting in my barn went to more and nothing. Found the blown fuse, put a new one in and it blows instantly with the key off. Removed the harness and checked all the wiring as was recommended by “experts” on you tube. I know I know. Lol. Should’ve pulled my multi-meter out first as that was an undertaking. Anyway as I put it back together I tested for feedback as I plugged each component back in. Turns out it was the engine harness which I didn’t think would work without the key. I opened up the engine harness and checked for damaged wires nothing, put it back together and checked all the components one by one by unplugging them to see if the feedback stopped. Even unhooked the starter, coils, after fuel solenoid etc. still have full voltage feedback.

My question is, could it still be the ignition switch because there should not be energy to the motor harness without the key on, or possibly the alternator is shorted, even though with the switch unplugged it is fine with no feedback. Also unplugging the ignition switch there is still feedback from the motor harness so I’m left to think it is probably the alternator/voltage regulator?

Thanks in advance this has me stumped.
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Old 06-19-2022, 08:10 AM
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Billy-O Billy-O is offline
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Tractor been sitting long enough for little critters to vandalize wiring and make a nest?

You best to have access to a wiring diagram and follow the path from the blown fuse, if possible. There are many XT1s.
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Old 06-19-2022, 12:28 PM
Rjulio Rjulio is offline
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No critters, mowed with it the week before. Had the harness completely out and bare, inspected all the wires. Regaled and wrapped. It’s in the motor harness that causes 12.35 volt feedback
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Old 06-19-2022, 05:42 PM
Rjulio Rjulio is offline
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Well, I found the issue after much thought looking at the wiring diagram. Figure I’d post an update for anyone else that has the issue of a fuse blowing instantly with the key off. The voltage regulator is the culprit. Guessing a diode went, as I have continuity from the input feed to one of the stator legs, Shorting out to the stator chassis.
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.

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