dfieldshorns84
17.06.2021 5:46:44
Un-plug the voltage regulator then install a new fuse and see if it blows, If it doesn't blow and the engine spins with this "sand" noise remove the flywheel and check the magnets and stator.
See full version: Kohler command 20 fuse blowing
Un-plug the voltage regulator then install a new fuse and see if it blows, If it doesn't blow and the engine spins with this "sand" noise remove the flywheel and check the magnets and stator.
I have a Kohler command 20 on a DC. I mowed the first yard of the day and was getting ready to unload for the second and when I turned the key the starter clicked and started to turn over but stopped. I tried again and same thing happened. on the third try nothing - the fuse blew. I put in another that blew as soon as I turned the key. I made a jumper and put it in (yea I know it isn't a good idea) turned the key and it started. The wire started smoking so I turned it off and decided to head home to work on it.
Now all the sudden the engine would not turn over. Like it was locked up. I reached under and was able to turn the pulley and get the engine to turn. when it does it sounds bad. like there is sand in the engine.
At home I put in a 30 amp fuse and started the mower by jumping the starter by crossing over the solenoid. drove it off the trailer into the garage and shut it off. tried to start it w/the key and it blew the fuse right away.
I took off the starter and it tested OK. where do I go from here?
Sounds like the magnets my have came loose from the inside of the flywheel (sand noise) and shorted the stator to ground (blowing fuses). here
I have a Craftsman riding mower with a Kohler CV16S engine.
I am blowing fuses big-time. This has been an intermittent problem for some time but usually goes away for a year or so when the fuse is replaced. I have a Craftsman tractor with a CV16S Kohler engine. I use this mower to pick up leaves and when I tried to get it out the fuse was blown and I found that it had the wrong fuse in it. I replaced the fuse and the engine was locked up. I got it loose with minor difficulty and it was charging fine until I shut it off. When I refueled and tried to start it the fuse was blown again. It blows fuses as soon as the fuse touches the connector.
I checked the terminals at the regulator and it has continuity from the right side blade to the center blade but none from the center to the left side. I also get continuity from both, the center blade and the right side blade to the regulator housing. I can unplug the regulator and install a new fuse and it starts and runs fine. When checking the leads from the Stator, it shows 31.6 volts across the two outside leads but only about half that from each lead to ground. I tried hooking up the connector to the regulator while running and the ammeter on the tractor disappears to the discharge side and fire flies from the connector. This is with a jumper across the connector that is supposed to have the fuse. At first I thought that it might be the magnets came loose inside the flywheel until I did this last check. I am believing more and more that it is the regulator shorted. The regulator is grounded very well. I hate to buy a regulator without knowing for sure that it is bad. The price I have looked up on the Kohler site is $66 for a new regulator. I don't mind buying one if it is bad but surely don't want to throw money away needlessly.
Any help would be most appreciated.
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Most large Kohler engines on riding lawn mowers use an electric starting system. Part of that system is a starter solenoid. The cylindrical solenoid is a low-amperage relay that safely completes the high-amperage electrical connection between the battery and starter motor when the ignition key is turned. A bad solenoid can deny electricity to the starter motor and prevent engine startup. But other basic problems may also exist.
Check the charge level of the mower battery by touching the red lead of your voltmeter to the positive post of the battery and the black lead to the negative post. If the meter reads less than 12.5 volts, charge the battery before attempting to start your riding mower.
Clean any visibly corroded connections in the starter system. First, disconnect the battery. Undo the corroded connection with the appropriate wrench or screwdriver. Remove corrosion from the connecting pieces by sanding them with medium-grit sandpaper until they are bright, then reconnect them. Tighten any loose connections. Check that the gearshift is in neutral, the mower deck is disengaged and the parking brake is set. Reconnect the battery and try to start the engine again.