Lucky to be ALIVE!!!

[aczlan]

I understand what CM is trying to say,
Current needs a "return" path to ground, but to safely do so, it also needs a ( without getting to technical ) "load" in it's path.
Without this load ( light, starter, radio etc, etc ) it is considered a short to ground,
depending on the amperage, this short to grnd can cause considerable damage.
Again, my take on this is the solenoid "shorted" closed, this is probably why the starter still spined,
when it was put in neutral, when Gary hit the solenoid again, it dislodged the internal short and opened the solenoid.

I agree 100%. My only disagreement is with CM calling a short across a solenoid to a load a short to ground.
If it goes directly to ground (ie: the wrench on the positive terminal hitting the engine block) it is a short to ground.
If it goes from positive to ground via a load (like Gary had happen when he hit both terminals with the wrench) it is a short, but it would not be considered a short to ground because it goes to ground through a load.

Aaron Z

 

[Garycw]

Good morning Gary,
how ya feeling this morning, whats the weather like down that way.

I'm feeling better physically. The weather is cold for SW ohio 39 last night w/hi of 50 today. Atleast it's sunny and looks to be a pretty day from what I could see. I go for a 175 mi R/T ride Tuesday to Dr's to have bandage removed and check with surgen's PA. If all well hopefully last visit. Time may be the cure going forward.

 

[TomSeller]

The fuel cut off knob is spring loaded. You pull it out and hold till engine dies. If you release before completely stopped it springs back and engine continues to run. It's Always in run position until you pull it and hold it. When released. It automatically goes back to run.

This is a very unsafe configuration, particularly if it starts without the key. On the old time tractors that I have, the fuel cutoff stays cut off until you move it back. I would get a safe, modern name brand tractor when you are able and back up and farming. Good luck.

 

[skyhook]

Good point, Tom, mine is the same...you pull it and it stay's shut off,
you have to push it back in manually, I wonder if someone added a spring to it at the pump.

 

[skyhook]

double post

 

[aczlan]

This is a very unsafe configuration, particularly if it starts without the key. On the old time tractors that I have, the fuel cutoff stays cut off until you move it back. I would get a safe, modern name brand tractor when you are able and back up and farming. Good luck.

If the tractor starts without a key, that needs to be fixed, but otherwise, its exactly how a "modern" tractor shuts off except they use a solenoid to shut the fuel off for a few seconds after you turn the key off.
Don't believe me? Watch the fuel shutoff solenoid when you turn the key off.

Aaron Z

 

[jlgurr]

Took me two days to wade through this....

Gary, hate to hear of your accident but thankful we are hearing from you and not one of your heirs.

Regarding the rest of the story and debate .... OMG!!!

Sent from my iPhone using TractorByNet

 

[Garycw]

I think I've about decided to sell this tractor. I'm not sure if can look at it without reliving the accident, or ever feel comfortable on it anyway.
I will check the fuel shut off knob and see if it will lock if you pull and twist or something?? I'd only had it a cpl weeks and only used it a cpl times. I do agree though it should just stay out when pulled. I've came to the conclusion it's just a dangerous design , even its the only one I have with a ROPS on it. I bought it cheap and will make a good profit selling it at a fair to low price. I'm going to need the $ for medical it seems and not a good deal after all. It was a $9k tractor and in like new cond. I paid $1k for it with a 5' bush hog that needs a half shaft.
I didn't really need it, just liked the 4wd and 24spd set up.

 

[TomSeller]

If the tractor starts without a key, that needs to be fixed, but otherwise, its exactly how a "modern" tractor shuts off except they use a solenoid to shut the fuel off for a few seconds after you turn the key off.
Don't believe me? Watch the fuel shutoff solenoid when you turn the key off.

Aaron Z

Gary said two things related to this. First, the tractor runs if you turn off the key. Second, if he does not hold the fuel shut oft long enough, the engine starts back up. Sounds like there is not an electrical shutoff and the engine will start on compression.

 

[aczlan]

Gary said two things related to this. First, the tractor runs if you turn off the key. Second, if he does not hold the fuel shut oft long enough, the engine starts back up. Sounds like there is not an electrical shutoff and the engine will start on compression.

I am very familiar with the system as we have a 2003ish B7500 that works the same way.
If you release the fuel shutoff before the engine has stopped spinning, it will start back up.
The key being on does not make any difference to the engine other than enabling/disabling charging.

Aaron Z