No Start CK2510

K

Koski J

New member
Hello,
My CK2510 did not start today after being parked for several days. Let me provide some background. Tractor has 107 hrs on it.

One day the tractor didn't start. I found the battery dead. (I left the key on "ACCY" I removed the battery, charged it and performed a load test. Battery checks good. Reinstalled the battery and the tractor started. Next, I checked the charging system. Alternator not charging. Just showed battery volts. Found fan belt completely worn out and slipping. Replaced fan belt with one from NAPA. Start the tractor and still not charging. Removed alternator (107hrs) and stopped by an electrical shop. They bench tested the alternator and it checked ok. Brushes good. Output 14.0 Volts. Reinstalled alternator and belt. Started tractor. No alt light on. Drove tractor to my shop and parked it.

8/28: Went to start tractor. No start. Tested battery 13.1 volts. There is a click when key is turned to "start". (Relay?) Removed starter and bench tested. Starter ok. reinstalled. Tried to find a wiring diagram online with no luck. I know there are several safety switches that need to be engaged before the engine starts. One is the seat switch and one is the transmission/gear switch. The trans needs to be in Neutral. Maybe a parking break switch too.

Tomorrow, I'll check for power/continuity in the safety switches. Does this tractor have a starter solenoid? Is there something I missed? Anyone else have this or had this no start issue? Any and all advice is gratefully appreciated. I'll post finding when the job is completed.
 
Update: I went back out to troubleshoot. I didn't find any chaffed or broken wires or connectors. I did get the tractor to start by wiggling the H/N/L shifter. I placed the shifter in Neutral and the tractor started. I turned it off. Reinstalled a cover panel. Jumped back on to start and again "No start". I now believe that the problem lies with the shifter lever and it's position. There's a small electrical box next to the shifter, See photos. Would this be a neutral safety switch? The lever to the right side of the box is the range selector. Back to research.
 

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Is there a way to update my messages without completing a reply? Anyway, I have continued to search and the photos I posted is not the neutral safety switch, I have no idea what this box does.
 
The box says "Safety Control Unit". Not sure exactly what that means for your tractor.
When my tractor encounters the no-start condition you've mentioned, it's normally a bad battery connection or the battery cables themselves.
Try bypassing the battery cables by routing jumper cables in parallel to the battery cables.
 
Thanks BCzoom for the info. I'll check it out and post the findings. Note: I did check the neutral safety switch for the gear lever, continuity is good.
 
BCZoom: tried what you suggested and that didn't work. I went back to square one and started again. Fast forward I have no voltage to the starter relay when the key is switched to start.
Here's what I've checked:
Battery good at 13.3 volts.
Fuses check good.
Relays (2) have voltage in and I'm assuming out since the continuity check was good.
Voltage to the starter from battery +cable.
Voltage into and out of the park brake switch.
Voltage into and out of the seat switch.
Voltage into and out of the neutral safety switch.
Inspected the wiring, find no chaffing or broken wires.
Could the ignition switch be the problem?
I'm about to the end of my knowledge.
 
Do you have a jumper box? If so, connect it to the starter solenoid and a good ground and try to start it.
Check any/all connectors to the starter relay.
 
Update: Success! Along with all the other switches on this tractor, I forgot to check the PTO!
Found the PTO switch was in the wrong position. I feel like a dutz. I should have known, but I over looked it.
Now to put the tractor panels and hood, back on. Thanks for all your help.
 
Don't feel bad. It happened to me once. Darn winter boot or snow pants moved the lever when I got on.
Good news is you've given your tractor a good preventative maintenance electrical inspection. :)
 
Morning,
OK, I thought I was done with this problem but I am wrong. The other day I jumped up on the tractor, started it up and ran it for about an hour moving wood to the shed. I shut the tractor down. Did some other chores and came back to use it and it would not start. I'm getting frustrated with this issue. I thought I had it fixed. I decided to bypass the seat switch. That did not fix the no start. I checked all the other safety switches all is good. Back to the internet to try and find some answers. Next morning, I went out to try and start the tractor and it started right up. I ran the tractor again for about an hour moving some dirt, stopped the tractor and came back to it later and again, would not start. What's going on? All the levers, trans in neutral, PTO, park brake, seat switch bypassed. I'm I missing a switch somewhere? Is the ignition switch at fault? Gets hot, no start, cools down starts? I feel like I'm chasing a ghost. Back at it today after church. Wish the service manual wasn't so darn expensive. I'll post what I find later today.
 
Thanks for your reply. I'll check to see if there is a sensor. Tractor started today after not being used since Sunday. Jumped up on the tractor, turned the key and it fired right up. I worked the tractor for about 90 minutes, parked it and shut it off. Immediately, went to start again and no start. Jiggled the ignition switch, worked the brake switch, clutch switch and still no start. I then blew off Neutral safety switch/the PTO switch/the park brake/brake switch, Seat switch bypassed. Sprayed each switch with Detox and dried. Still no start. I'll check back later today.
 
The chase continues, but I think I now have the problem isolated. I checked the battery and load tested. Checks good. I then checked the ground cable and it is clean and tight. Next, I checked the battery voltage at the starter and have 12.4 volts. That's good. Next, I checked the voltage at the small terminal on the starter and it was zero volts. That's good. Next, I checked the voltage at the small terminal of the starter, while turning the key to start, That's good at 11 volts and the tractor started. All the voltages are good, then there is a dead spot on the starter which is causing the intermittent no start condition. This dead spot is either on the commutator, a brush that's sticking or a sticking Bendix. My thought was a sticking ignition switch. I removed the starter and it's headed to the local electrical shop for repair or replacement. Big thanks to Richeyvs Senior member over at tractorbynet.com for his expertise in helping to isolate the problem.
 
So you have 11 volts at the starter solenoid signal wire when it started. What do you have there when it won't start? If it's still 11 volts then yes, you may have a starter or solenoid issue but it's still possible you don't have enough voltage there when things warm up. If that's the case fixing or replacing the starter is a waste of money. Your problem is still with you.
 
I didn't check. The battery was removed, charged and load tested as good at 5 years old. My first thought was the battery but after testing it and it checked good, I moved on. But I have to say too, that with only 115hrs on the tractor I wouldn't think the starter would be bad, I live in the foothills of the Sierra in Calif and we don't get a lot of rain but we do have lots of humidity. The tractor does sit outside.
 
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