Question about Craftsman 20 hp 42 in. Deck Yard Tractor

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Craftsman mower dies when clutch released or mower engaged

It can't be the seat switch. Mower starts with clutch depressed only, I don't have to be sitting on it. Disconnected the seat switch and same thing. I pulled switch from under seat and depressed it manually, still same thing. Cut wires to switch and tied together, again still same thing. The switch tested o.k. with a continuity tester. It appears the seat switch does nothing at all.
Maybe it's the clutch switch? It works well enough to start the engine (or kill it). The wires between the the clutch switch and the seat switch appear to be o.k.
There is an electrical connection to a component on the engine shaft. I have no idea what this thing is or whether it could be the problem. I know it looks like a nightmare to replace.
Is there another switch that I'm missing?
I can actually see the grass growing by the second and it's supposed to rain for the next 2 days. Help?
16.5 hp elec start Kohler on 46" Craftsman EZ3 automatic
#917.272021

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  • matt2388 Apr 25, 2009

    I have the exact same problem. It has happened 3 times and usually a thorough cleaning fixes it, but I can't figure out the source of the problem.

  • Anonymous May 02, 2009

    matt did you use water to clean underside or just brush and what all did you clean to make it work?

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Posted on Jan 02, 2017

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  • 138 Answers

SOURCE: riding mower dies when releasing brake

the seat switch is the problem. the switch itself could be bad, but usually theproblem is that the connector is just not plugged in all the way [by the way, trying to bypass the switch by inserting the wire doesn't work because there is a "switch" inside the connector to prevent you from doing just what you did]

Posted on Aug 17, 2009

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RonInFla
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SOURCE: STARTS GOOD BUT ENGINE DIES WHEN CLUTCH RELEASED

cut the wires running to the switch...try again...if same, stripp back wires, and twist together...wrap in tape or use some sort of connector...it's electric and should be treated as such...try again...still ?? Start finding those switches and repeat the process til it works...theres usually 3 or 4...

Posted on Apr 18, 2010

Testimonial: "Haven't tried the suggested solution but makes sense."

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SOURCE: I have 16 hp Craftsman riding mower with a Kohler engine.

It may think you are in reverse and is killing the motor to keep you from backing up with the blade running. Look for switch that is telling it when you are in reverse, maybe it is stuck with grass or other debris. another possibility is that the blades are jammed and they are stalliing the motor. Mines stalls easily when cold.

Posted on Mar 12, 2009

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3 Answers

Why does mower die when brake released or mower engaged?


ck your occupant (seat) switch it might have gotten dislodged or unhooked when fueling it

May 17, 2014 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

Scotts 1642h riding mower Ignition Switch, Seat Switch or Wiring Problem?


Will run with no one in seat if clutch is depressed but will not run with clutch depressed and blade engaged with no one in seat. Could be your pto safety switch is bad. Maybe battery new but not charged try charging with 2 amp charger overnight and see if that helps. Maybe diode in charging circuit bad.

Sep 07, 2017 | Craftsman Garden

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Craftsman ZTS 7500 dies when engage blades or when engage transmission


check the "kill switch" they are usually located in the seating area. it senses for pressure or seat angle and will kill the mower if nobody is sitting on the mower. Good Luck

Apr 17, 2012 | Craftsman Garden

1 Answer

My lawn mower will start easily and continue running as long as the clutch brake is depressed but when I lift the clutch or try to engage the blades while the clutch is depressed the mower will stall.


This is a shot in the dark. I think you have a failed "operator presence safety switch". Rule this out by finding the switch and jumping it.

Your mower should run with no one in the seat IF THE PARKING BRAKE IS SET.

If the brake is released and no one is on it, it should shut off.

If you are on it and the brake is released you should be able to engage the blades (probably an electric clutch)

Purpose of this interlock is the shut the machine OFF should you fall off or jump off the machine. Do not disable this valuable safety feature.

Let me know what you find.

Thanks for your question @ FixYa.com

May 15, 2011 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

STARTS GOOD BUT ENGINE DIES WHEN CLUTCH RELEASED


cut the wires running to the switch...try again...if same, stripp back wires, and twist together...wrap in tape or use some sort of connector...it's electric and should be treated as such...try again...still ?? Start finding those switches and repeat the process til it works...theres usually 3 or 4...

Apr 18, 2010 | Craftsman 21 hp 42 in. Deck Yard Tractor -...

1 Answer

Craftsman riding mower Model 917.270824


I do not believe there is a manual available to the public for troubleshooting, however, you have at least 3 switches to tell the mower to stop when blades are engaged or clutch pedal released.

Seat switch
pedal switch
mower engage switch


The pedal and mower lever switches are identical, and have two sides, one for starting, one for blades turning. One side can fail. The pedal switch is on the frame very close to the pivot point of the pedal/shaft. The mower switch will be under the dash close to the bottom of the lever.

1) Locate and inspect the switches for broken or pinch wires, switch housing, or loose mounting, and how each lever or pedal engages the swtich.


2) This is a picture of the wiring so that you can get a better idea of location.

http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=917270824&productCategoryId=1509200&brandId=0247&modelName=TRACTOR&diagramPageId=00011&componentDescription=SCHEMATIC%20DIAGRAM-TRACTOR&documentId=P0811014&blt=06

http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=917270824&productCategoryId=1509200&brandId=0247&modelName=TRACTOR&diagramPageId=00001&componentDescription=ELECTRICAL&documentId=P0811014&blt=06

Nov 11, 2009 | Craftsman Garden

2 Answers

Riding mower dies when releasing brake


the seat switch is the problem. the switch itself could be bad, but usually theproblem is that the connector is just not plugged in all the way [by the way, trying to bypass the switch by inserting the wire doesn't work because there is a "switch" inside the connector to prevent you from doing just what you did]

Mar 28, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

2 Answers

Mower starts, but when I let off clutch, it dies.


Grass and debris clogg the switch mechinisms, safety interlocks are sometimes a pain to diagnose but I would first look at the seat interlock, the petal switch and ffinally then the mowing deck.

Dec 24, 2008 | Craftsman 20 hp 42 in. Deck Yard Tractor

1 Answer

Mower dies when i try to engage blade


Hi, what you wrote is exactly what's is suppose to do. what is it about the mower that's not doing?

Nov 22, 2008 | Craftsman 20 Hp 42" Deck Lawn Tractor

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