yelbike
Veteran Member
- Joined
- Nov 7, 2011
- Messages
- 1,596
- Location
- Near Winnipeg, Mb, Canada
- Tractor
- John Deere 2305, 2320,Z465
Life is short. Then you're in the ground.
Now that's a good one! ROFL!
Life is short. Then you're in the ground.
Your correct there is typically no starter fuse, it was a simplified explanation.Well, you might have the right idea, but your analogy is flawed :c). Problem is, most starter motors will draw a fair amount of current, over 150 amps is not uncommon for a starter turning a high compression (think diesel) or big displacement engine. Your wee little 50 amp fuse would blow if it were in the circuit when you "connect" the two heavy solenoid terminals with that wrench. But you are in luck, 'cause the negative terminal of the battery is connected to chassis ground, and the positive terminal has a heavy wire going from it directly to one of the big connectors on the solenoid. The other big solenoid terminal goes to the starter motor, of course, and the other starter motor terminal (internal and not exposed), is connected to chassis ground. For obvious high current reasons, no fuses are in the starter circuit in most every vehicle I'm aware of.
It's just like a loop (circuit) with the "open" in the circuit being between those two terminals on the solenoid (at least until there is voltage applied to the solenoid coil - usually from the starter switch). Connect them contacts one way or another and current (wee little electrons) can then flow from the negative terminal of the battery, through the chassis to the negative or ground side of the starter motor, through its motor windings to its positive terminal, and then through the solenoid contacts back to the positive terminal of the battery. (Note, this describes the more widely accepted "electron flow theory" as opposed to the out dated "conventional current flow theory", that has electricity flowing from battery positive to negative - confusing, I know).
In any case, connect battery positive or a wire connected to it, directly to chassis ground and you will get arcs and sparks, blown fuses or welding - - don't do it. Connect those two solenoid terminals (also sometimes called a contactor or relay) together and the starter motor turns - - if she's in gear things get dicey.
No electrons were harmed writing this post. This post contains no viruses, bugs, or misinformation, grammatical errors, maybe, but my hearts in the right place. May the electromotive force (EMF to you neophytes) be with you,
PS, If you don't really know how something works, it's usually safe to conclude it works by PFM (pure, xxxxing, magic).
bumper
My credentials? 8 years as a Navy electronics technician (63 to 70), founded and still own an electronics related company (kids run it now), licensed electrician, played with this stuff all my life. Disclaimer, none of this means I'm right . . . but I sure think I am.
Your correct there is typically no starter fuse, it was a simplified explanation.
Kiotis have a 60amp fuse in the starter circuit, as one example. Sorry to say, the solenoid did not become a fuse, and it didn't fuse itself closed either.:confused2: What bumperm said is the wrench completed the circuit to/through the starter, and because it was in gear it moved the tractor. End of story. Fini, complete, final, END.
Yes it did.and it didn't fuse itself closed either.:confused2:
You're talking about the tractor, right...........?. Hey Gary, have you been able to get back on her yet,, and give it a good talking too. I know I would, and if she gives you any of that attitude, get rid of her.![]()
You're talking about the tractor, right...........?
Gary, I hope you're improving. Terry