Question about Husqvarna 23 Hp 48" Deck Yard Tractor

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The mower starts, the blades will engage, but when you release the brake/clutch (about 1 inch of the 6 inches of travel), the mower dies. The reverse switch position on the key does not have any effect. I can hear what sounds like a microswitch toggling at the same 1 inch of travel position. It seems like some safety system is shutting down the mower, but I can't find anything in the owner's manual about it.

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  • farads44799 Sep 25, 2009

    Yes, I am sitting in the seat when the malfunction occurs. Doesn't seem to matter if the mower is engaged or not. Doesn't seem to matter if the key switch is in the Reverse Sensing position or in the normal position. The mower can only be towed (pushed/pulled) until this problem is fixed.



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Here is a dumb question for you, are you sitting on the machine when you release the petal?

Most new machines have a 'operator presence' safety system on them. To run the machine, the operator must be in the operators regular position. I would guess you know this.

Can you release the brake and continue to run with the mower off???

Maybe your machine requires you to engage the drive and then the mower???

So, if the engine dies when you engage the drive system, the tractor thinks there is no one in the seat. Look for a switch malfunction under your seat.

Please let me what happens. Id like to solve this for you.


Posted on Sep 24, 2009

  • A Miller Sep 25, 2009

    Hi there and thanks for the clarification.

    With the understanding that this is a generic answer to your most serioius trouble, I say you have a safety switch failure. I would suspect that the seat is telling the mower there is no one sitting there even though, obviously, you are there.

    I suspect there is a switch on the seat, one on the pedal and one that works with the mower clutch. Seems to me the pedal switch is allowing you to start the machine but when you engage the mower traction dvice, the seat switch is saying NO GO. In other words, when you sit on the seat, the contacts on that switch are not making contact. You can try to short it out to prove or disprove this theory. I dont think you can damage the system by shorting this seat switch out - it should either be open (no one in the seat - no run) or closed (someone in the seat - ok to run). Dont short it to ground! - short it one wire to the other with a short piece of wire.

    If this is the trouble - repace the switch. Do not attampt to defeat its purpose.

    Let me know what you find out.

    I hope you find this information to be of some value.




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