Safety switch engaged now can't start?

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  #1  
Old 05-25-20, 04:22 AM
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Safety switch engaged now can't start?

I cleaned the carb, charged battery, etc. and Gabe the engine a run around. Was working fine. However, I engaged the manual pto yesterday, the blades started spinning and then 2 seconds later, the engine just cut out.
is this a safety switch or battery issue?
Now when I try to turn the key, it is completely dead, nothing even lights on the dash. The battery has 12.6V so it seems like it should at least turn a light on on the dash?

Edit: Kohler courage 20hp LT-942K
 

Last edited by qwertyjjj; 05-25-20 at 05:26 AM.
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  #2  
Old 05-25-20, 04:47 AM
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12.6 volts is a good number.

First check fuses/ breakers and cable connections on the battery. Sounds like there is a break somewhere. Since it went south just as you hit the pto, it's likely a fuse going to the ignition switch
 
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Old 05-25-20, 04:58 AM
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Helps to know what type of mower we are talking about. Model # rally helps.
 
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Old 05-25-20, 05:11 AM
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First, although I don't think its your issue, but make sure you disengaged the PTO lever. Many times the mower will die & people will instinctively try to crank it without engaging the PTO.

I agree with checking fuses.

Check battery cables..... not just the battery. If the ground is loose or corroded, you'll get no power to the mower/tractor. Check voltage at both ends of the cables. Remove & clean both ends of both cables even if you're getting 12v at the cables.

Try some of the suggestions & if these things don't work, we'll suggest more things. I'm sure Cheese will come along before long & certainly get you going.
 
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Old 05-25-20, 05:17 AM
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20A fuse just behind the ignition switch was fried.
what could cause that just from engaging pto though?
FWIW, the battery is old. Although it says 12.6, it will only hold one or 2 starts before needing a charge. Is it possible the PTO is trying to charge it blowing a fuse?
 
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Old 05-25-20, 05:20 AM
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Sorry I missed the last line of your post.
 
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Old 05-25-20, 05:36 AM
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After your last post, did you replace the fuse and,
if so, did it engage the PTO & did the mower stay running?
OR did the PTO blow the new fuse also?
 
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Old 05-25-20, 08:53 AM
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Is it possible the PTO is trying to charge it blowing a fuse
...No. Try a new fuse and clean the contacts of the holder. Also check your blades for grass and other material that may drag the PTO engagement. They should spin freely with the PTO disengaged.
 
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Old 05-25-20, 05:10 PM
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New fuse, started up fine, PTO engaged and blades spinning for a few mins. Go figure.
Kind of odd?!
 

Last edited by qwertyjjj; 05-25-20 at 05:28 PM.
  #10  
Old 05-25-20, 06:55 PM
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If it runs OK until you engage the PTO, then it blows the fuse, the PTO clutch must be shorted. Those are not cheap (price-wise).

The blades spin freely before engaging the clutch, I take it?
 
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Old 05-26-20, 12:21 AM
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Check the wiring to the PTO clutch near the transmission belt. Often the belt rubs on it and exposes the wires and a short happens. If not, then check the resistance across the terminals on the clutch.
 
  #12  
Old 05-26-20, 11:35 AM
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Manual PTO

Just Curous, I thought he said he was engaging a MANUAL pto lever. Ive never blown a fuse with my tractors with manual PTOs. Electric Clutches you bet!
 
  #13  
Old 05-26-20, 12:19 PM
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You're right - he says manual PTO in his first post. Cheese thinking the belt rubbing a wire must be it.
 
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Old 05-26-20, 05:44 PM
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I don't think he ever said what he had tractor wise. I saw something about a kohler....But it appears he is good to go...
 
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Old 05-26-20, 10:37 PM
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I was reading too quickly and missed it. Thanks for the backup.
 
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Old 05-27-20, 04:47 AM
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Yeah, I missed that, too. I thought he had an electric clutch.

So it's back to the belt rubbing the wires through and shorting, or possibly the safety switch as he suggests in the title of the post.
 
  #17  
Old 05-28-20, 08:03 AM
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Manual vs Electric Clutch

Well, we still don't know if it ISN'T an electric clutch, unless he posts back again! Can't assume anything, you all know what that does lol
 
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