A real turn off

[oldernwiser]

Started my CK20 HST today. Temp. about 21 degrees out. Let it warm up for about 25 minutes. Worked lightly for about 25 minutes moving snow to open a path to the wood pile. Backed the tractor back into the garage and turned the key to the off position. NOTHING !!! Still running. Took several attempts with the key to finally get it to shut down. Did notice that none of the idiot lights lit up when turning the key to the off position. Any ideas as to what is going on?

Thanks ...
John

 

[Egon]

Spray some electronic cleaner in the switch. It may help make better contact.

Last week I had to use a heat gun to thaw out the ignition switch so I could get the key in. I then sprayed some WD40 in it.

 

[DrewL]

check your battery connections also. I had that happen to me and that's what it was

 

[Bird]

On the off chance that someone doesn't already know it . . . . with our gasoline powered vehicles, turning the key off stops electric power from sending a spark to the spark plugs, so turning off electric power kills the engine. A gasoline engine is spark combustion. But a diesel engine is compression combustion; no spark plug, so turning off the electrical power does not kill the engine. You have to stop either the fuel flow, or air flow, to the cylinders to kill the engine. So I think the CKs have a solenoid that shuts off the fuel flow when the key is turned off. So it may simply be that the solenoid is stuck and can be freed up manually, or with a shot of something like WD-40.

 

[shvl73]

Bird,
My Mahindra is just as you described. It also has a manual fuel shut off that can be pulled, down low near the platform, in case this situation arises.

 

[jimb1724]

Started my CK20 HST today. Temp. about 21 degrees out. Let it warm up for about 25 minutes. Worked lightly for about 25 minutes moving snow to open a path to the wood pile. Backed the tractor back into the garage and turned the key to the off position. NOTHING !!! Still running. Took several attempts with the key to finally get it to shut down. Did notice that none of the idiot lights lit up when turning the key to the off position. Any ideas as to what is going on?

Thanks ...
John

John
i have a ck20hst and had the same problem two years ago.... i had my dealer's mechanic look at the wiring but found no solution... now i just use the engine kill (red knob by the parking brake) switch and don't worry about it anymore

 

[VictorW]

The key turns off an electric selonoid that shuts off the fuel. Maybe it's stuck. You can see it with the hood open.
My key switch also froze after pushing snow in a good snow fall. There was enough heat to melt the snow and it entered the switch and froze after parking the tractor. After doing what egon did to get it working again, I made a fix so it wouldn't happen again. I stopped at the local Lowe's store and picked up a rubber cup that you might use for the bottom of a kane or maybe table legs. It was 1 1/4 inch diameter. I cut the length down and then a small slit for the key to go through tightly. With the key in the switch, the open end of the cup just clears the dash. No more problems as it keeps the snow away from the switch top.

 

[CBB]

The key turns off an electric selonoid that shuts off the fuel. Maybe it's stuck. You can see it with the hood open.
My key switch also froze after pushing snow in a good snow fall. There was enough heat to melt the snow and it entered the switch and froze after parking the tractor. After doing what egon did to get it working again, I made a fix so it wouldn't happen again. I stopped at the local Lowe's store and picked up a rubber cup that you might use for the bottom of a kane or maybe table legs. It was 1 1/4 inch diameter. I cut the length down and then a small slit for the key to go through tightly. With the key in the switch, the open end of the cup just clears the dash. No more problems as it keeps the snow away from the switch top.

****, you solution my not be a "Rube Goldberg" but it merits a picture!
How did you attach the rubber cup?

--real turn off---funny play on words.

 

[Steve_Miller]

The key turns off an electric selonoid that shuts off the fuel. Maybe it's stuck. You can see it with the hood open.
My key switch also froze after pushing snow in a good snow fall. There was enough heat to melt the snow and it entered the switch and froze after parking the tractor. After doing what egon did to get it working again, I made a fix so it wouldn't happen again. I stopped at the local Lowe's store and picked up a rubber cup that you might use for the bottom of a kane or maybe table legs. It was 1 1/4 inch diameter. I cut the length down and then a small slit for the key to go through tightly. With the key in the switch, the open end of the cup just clears the dash. No more problems as it keeps the snow away from the switch top.

I'd say Victor is on the right track, my solenoid froze open and closed several times last winter. I had to pop the hood and just nudge it a little bit and it would operate one way or the other. I just sprayed it with a little with penetrating fluid and worked it back and forth and it hasn't stuck since last year.

Steve

 

[NY_kioti_sales]

see if you are getting power to the selonoid..... If not I have seen the timer that powers it go bad as well. Also check your connections and look for water or corrosion in this wireing. Use di-electric grease on these connections.
The way the timer works is, when the key is shut off the timer sends power to the selonoid for 7to 10 seconds to cut the fuel. This can be checked by unplugging the selonoid and checking with a test light.